WO2012153735A1 - 液状殺虫剤組成物 - Google Patents
液状殺虫剤組成物 Download PDFInfo
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- WO2012153735A1 WO2012153735A1 PCT/JP2012/061758 JP2012061758W WO2012153735A1 WO 2012153735 A1 WO2012153735 A1 WO 2012153735A1 JP 2012061758 W JP2012061758 W JP 2012061758W WO 2012153735 A1 WO2012153735 A1 WO 2012153735A1
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- silicone
- insecticide composition
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N55/00—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N2300/00—Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
Definitions
- the present invention relates to a liquid insecticide composition. More specifically, the present invention relates to a liquid insecticide composition that contains a neonicotinoid compound such as acetamiprid as an active ingredient, exhibits an excellent fast-acting insecticidal activity, and is suitable as a water-soluble liquid agent.
- a neonicotinoid compound such as acetamiprid
- emulsions, wettable powders, flowable preparations and the like are known as preparations that are diluted in water and sprayed.
- a water-soluble liquid (SL liquid) is preferably used from the viewpoint of ease of handling.
- neonicotinoid compounds also known as chloronicotinyl compounds
- imidacloprid and acetamiprid are known to have excellent insecticidal activity. Therefore, various water-soluble liquid agents containing this neonicotinoid compound as an agrochemical active ingredient have been proposed.
- imidacloprid a natural emulsifier based on alkylaryl polyglycol ether, a water-soluble concentrate containing sodium diisooctylsulfosuccinate, dimethylsulfoxide and isopropanol
- imidacloprid sodium diisooctyl Water-soluble concentrate containing sulfosuccinate, dimethyl sulfoxide, triethanolamine salt of alkylbenzene sulfonic acid, sodium salt of alkylbenzene sulfonic acid, condensation product of oleic acid and diethanolamine, and polyethylene glycol
- Acetamiprid is dissolved in a mixed solvent containing ⁇ -butyrolactone and dimethyl sulfoxide, and polyoxyethylene hydrogenated castor oil or ethylene is used as a surfactant.
- Patent Document 2 Insecticide composition comprising homogeneous solution in which xylene propylene oxide block copolymer is dissolved
- Patent Document 3 Agrochemical composition comprising acetamiprid, polyoxyalkylene alkyl ether, ⁇ -butyrolactone and dipropylene glycol
- Patent Document 5 A liquid composition (Patent Document 5) for treating a plant propagation material composed of thiamethoxam, polydimethylsilane, copolymer butanol PO / EO, naphthalenesulfonic acid sodium salt and water has been proposed.
- Neonicotinoid compounds are generally said to be fast acting.
- liquid compositions such as those proposed in the above-mentioned patent documents containing a neonicotinoid compound as an active ingredient may have poor rapid efficacy. Even if it is an insecticide that can completely control pests, if it is not fast enough, crops will be damaged before pest control is completed. Accordingly, an object of the present invention is to provide a liquid insecticide composition suitable as a water-soluble liquid agent that contains neonicotinoid compounds such as acetamiprid, imidacloprid, and thiamethoxam as active ingredients and exhibits excellent rapid-acting insecticidal activity. It is.
- Agricultural and horticultural insecticides generally do not allow active ingredients to come into direct contact with insect bodies when sprayed with chemicals, and most of the active ingredients adhere to the plant surface, the soil where the plants grow, or the water surface. Or is absorbed into plants. This active ingredient is taken in by a pest when a pest eats or absorbs liquid, and exhibits an insecticidal effect. As described above, it is generally said that since the insecticidal effect of the active ingredient is indirect, the rapid efficacy is lowered.
- Patent Document 4 describes that when a silicone surfactant is applied directly to pests such as cockroaches at a high concentration, specifically 0.1% by weight or more, it shows a killing effect.
- a liquid insecticide composition comprising a neonicotinoid compound, a silicone surfactant and a water-soluble organic solvent.
- the silicone surfactant is a polyether-modified polysiloxane.
- the silicone surfactant is polyoxyethylene-modified heptamethyltrisiloxane.
- the silicone surfactant is represented by the formula (I) (In the formula (I), j is an integer of 2 to 6, x is an integer of 3 to 10, y is 0 or 1, and k is an integer of 1 to 9).
- the neonicotinoid compound In a total of 100 parts by mass of the neonicotinoid compound, the water-soluble organic solvent, and the silicone surfactant, the neonicotinoid compound is 0.1 to 60 parts by mass; the water-soluble organic solvent is 35 to 95 parts by mass;
- the liquid insecticide composition according to any one of the above [1] to [5], wherein the silicone surfactant is 1 to 15 parts by mass.
- a non-silicone nonionic surfactant is a polyoxyalkylene block polymer.
- the neonicotinoid compound is 0.1 to 60.
- Liquid insecticide composition [10] The liquid insecticide composition as described in any one of [1] to [9] above, which is used for agricultural and horticultural purposes.
- a method for enhancing the insecticidal efficacy which comprises using a neonicotinoid compound as an insecticidal active ingredient in combination with a silicone surfactant.
- the silicone surfactant is represented by the formula (I) (In the formula (I), j is an integer of 2 to 6, x is an integer of 3 to 10, y is 0 or 1, and k is an integer of 1 to 9).
- the liquid insecticide composition of the present invention has an excellent knockdown effect even when the active ingredient does not directly touch the worm body, and can kill insects with a high rate of effectiveness.
- the liquid insecticide composition of the present invention is suitable as a water-soluble liquid agent for agriculture and horticulture.
- the liquid insecticide composition of the present invention contains a neonicotinoid compound, a silicone surfactant and a water-soluble organic solvent.
- the neonicotinoid compound used in the present invention is a substance known as an agrochemical active ingredient. Specific examples include acetamiprid, imidacloprid, clothianidin, dinotefuran, thiacloprid, thiamethoxam, nitenpyram and the like. Among these, acetamiprid is preferable.
- the water-soluble organic solvent used in the present invention is not particularly limited as long as it is an organic solvent that is soluble in water and can dissolve a neonicotinoid compound.
- the water-soluble organic solvent is particularly preferably one that is miscible with water.
- the water-soluble organic solvent include alcohols such as ethanol, n-propanol and isopropanol; glycols such as ethylene glycol, propylene glycol and glycerol; dimethyl sulfoxide; ketones such as acetone, methyl ethyl ketone, cyclohexanone and isophorone; -Lactones such as butyrolactone; glycol ethers such as diethylene glycol and dipropylene glycol; propylene carbonate; amides such as dimethylacetamide and dimethylformamide; pyrrolidones such as N-methylpyrrolidone and the like.
- dimethyl sulfoxide, ⁇ -butyrolactone, dipropylene glycol, dimethylacetamide, and N-methylpyrrolidone are preferable from the viewpoint of low volatility and high safety.
- the liquid insecticide composition of the present invention may contain other organic compounds as necessary as long as no adverse effects such as a decrease in the solubility of neonicotinoid compounds and separation during dilution with water appear.
- a solvent or water may be contained.
- the water-soluble organic solvent used in the liquid insecticide composition of the present invention includes at least one water-soluble organic solvent selected from dimethyl sulfoxide, ⁇ -butyrolactone, dipropylene glycol, dimethylacetamide, and N-methylpyrrolidone; Other water-soluble organic solvents such as ethanol or water can be used in combination.
- the silicone-based surfactant used in the present invention is preferably a silicone-based nonionic surfactant, more preferably a silicone-based surfactant having a polyorganosiloxane part and a polyoxyalkylene part.
- the polyorganosiloxane part is preferably polymethylsiloxane and / or polydimethylsiloxane.
- the polyoxyalkylene part is preferably polyethylene oxide and / or polypropylene oxide.
- silicone surfactants include polyether-modified polysiloxanes obtained by adding polyoxyalkylene to alkylhydrogensiloxane; aminopolyether-modified polysiloxanes having amino groups, epoxy groups and / or carboxyl groups added thereto. Mention may be made of siloxanes, epoxy polyether-modified polysiloxanes and / or carboxy polyether-modified polysiloxanes. Moreover, the silicone type surfactant which etherified or esterified the terminal hydroxyl group with the alkyl group is mentioned.
- silicone surfactants include Sylgard series (manufactured by Dow Corning Toray), Sylwet series (manufactured by Momentive Performance Materials), Silicone oil KF series (manufactured by Shin-Etsu Chemical Co., Ltd.), Kinetic ( Helena Chemical Co., Ltd.), Siltec (manufactured by Siltec), and the like. These include those conventionally used as additives when formulating herbicides, as wetting agents when using herbicides, or as enhancers to increase the efficacy of herbicides . These silicone surfactants can be used singly or in combination of two or more.
- polyether-modified polysiloxane is preferable, polyoxyethylene-modified heptamethyltrisiloxane is more preferable, and the formula (I) (In the formula (I), j is an integer of 2 to 6, x is an integer of 3 to 10, y is an integer of 0 or 1, and k is an integer of 1 to 9). More preferably, it is a compound.
- the liquid insecticide composition of the present invention preferably further contains a non-silicone nonionic surfactant.
- Non-silicone nonionic surfactants are not particularly limited, but include polyoxyethylene alkyl ether, polyoxyalkylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene vegetable oil ether, polyoxyethylene Ethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene phenyl ether polymer, polyoxyethylene alkylene aryl phenyl ether, polyoxyalkylene aryl phenyl ether, polyoxyethylene alkylene glycol, polyoxyethylene polyoxypropylene block polymer, acetylene glycol Surfactants (2,4,7,9-tetramethyl-decyne-4,7-diol ), And the like.
- the polyoxyalkylene block polymer is a compound in which monomers such as ethylene oxide, propylene oxide and butylene oxide are block copolymerized, or one of the terminal hydroxyl groups is etherified with an alkyl group or an alkenyl group.
- monomers such as ethylene oxide, propylene oxide and butylene oxide are block copolymerized, or one of the terminal hydroxyl groups is etherified with an alkyl group or an alkenyl group.
- Non-silicone nonionic surfactants can be used alone or in combination of two or more.
- the mass ratio of the silicone surfactant / non-silicone nonionic surfactant is preferably 100/0 to 30/70, more preferably 100/0 to 50/50.
- non-silicone surfactant can be added to the liquid insecticide composition of the present invention as necessary.
- Other non-silicone surfactants include tallow amine ethylene oxide adduct, oleylamine ethylene oxide adduct, soyamine ethylene oxide adduct, cocoamine ethylene oxide adduct, synthetic alkylamine ethylene oxide adduct, octylamine ethylene oxide Alkylamine ethylene oxide adducts such as adducts; alkylamine propylene oxide adducts; quaternary ammonium compounds derived from these compounds; and non-silicone cationic surfactants such as mixtures thereof; polycarboxylic acid type interfaces Activator, lignin sulfonate, alkyl aryl sulfonate, dialkyl sulfo succinate, polyoxyethylene alkyl aryl ether sul
- the liquid insecticide composition of the present invention is within the range not impairing the effects of the present invention, UV absorber, antioxidant, preservative, efficacy enhancer, colorant, fragrance, binder, thickener, viscosity.
- An auxiliary agent such as a regulator may be contained.
- the liquid insecticide composition of this invention can contain agrochemical active ingredients other than a neonicotinoid type compound within the range which does not impair the effect of this invention.
- Other agrochemical active ingredients include fungicides, fungicides, bactericides, acaricides, insecticides, herbicides, growth regulators and the like.
- the liquid insecticide composition of the present invention is not particularly limited by the composition ratio of the neonicotinoid compound, the water-soluble organic solvent, and the silicone surfactant.
- the neonicotinoid compound is preferably 0.1 to 60 parts by mass, more preferably 9 to 20 parts by mass, and even more preferably 10 to 15 parts by mass;
- the organic solvent is preferably 35 to 95 parts by mass, more preferably 65 to 90 parts by mass, still more preferably 70 to 85 parts by mass;
- the silicone surfactant is preferably 1 to 15 parts by mass, more preferably 2 to 10 parts by mass. Part.
- the liquid insecticide composition of the present invention is not particularly limited by the composition ratio of the neonicotinoid compound, the water-soluble organic solvent, the silicone surfactant and the non-silicone nonionic surfactant, but a suitable composition ratio Is a neonicotinoid compound, preferably 0.1 to 60 parts by mass in a total of 100 parts by mass of a neonicotinoid compound, a water-soluble organic solvent, a silicone surfactant and a non-silicone nonionic surfactant, More preferably 9 to 20 parts by mass, still more preferably 10 to 15 parts by mass; the water-soluble organic solvent is preferably 35 to 95 parts by mass, more preferably 65 to 90 parts by mass, still more preferably 70 to 85 parts by mass;
- the total of the system surfactant and the non-silicone nonionic surfactant is preferably 1 to 30 parts by mass, more preferably 1 to 5 parts by weight, more preferably 5 to 15 parts by weight.
- the neonicotinoid compound in the composition ratio as described above, can be dissolved at a high concentration without being deactivated, and it becomes difficult to cause white turbidity or precipitation when the composition is diluted with water.
- the fast-acting insecticidal effect which is the main object of the present invention can be reliably achieved.
- the method for preparing the liquid insecticide composition of the present invention is not particularly limited as long as each component can be dissolved uniformly, and can be appropriately selected from known preparation methods. For example, it can prepare by mixing and stirring each said component in a container.
- a mixing order, a stirring method, a container and the like are not particularly limited and are arbitrary.
- the liquid insecticide composition of this invention can be used as a water-soluble liquid agent (SL liquid agent) as it is or by diluting with water etc. If the liquid insecticide composition of the present invention is applied in such a manner that it directly touches the insect body, it will naturally exhibit a rapid insecticidal effect.
- the liquid insecticide composition of the present invention is applied to the seeds, plants, the soil where the plants grow, the water surface, etc., or indirectly absorbed by the plants, etc. Even when applied by the method, it exhibits an excellent quick-acting insecticidal effect. Therefore, the liquid insecticide composition of the present invention is particularly suitable for agricultural and horticultural applications. Moreover, the liquid insecticide composition of the present invention can be applied together with other fungicides, insecticides, herbicides, spreading agents, fertilizers, soil improvers and the like.
- the liquid insecticide composition of the present invention can be used for either agricultural land treatment or non-agricultural land treatment.
- agricultural land treatment as seed treatment agent used for spraying treatment, dressing treatment, spraying application, dipping treatment, etc .; for foliage treatment agent used for spraying treatment, top dressing treatment, etc .; surface spraying treatment, mixing
- a soil treatment agent used for treatment irrigation treatment, fumigation treatment, planting hole treatment, plant root treatment, rowing treatment, sowing groove treatment, seedling box treatment, seedling pot treatment, etc .
- the liquid insecticide composition of the present invention can be used as a paddy treatment agent used for treatment or the like; as another treatment agent used for fumigation treatment, lawn treatment or the like.
- the liquid pesticide composition of the present invention is used as a soil pest control agent, termite control agent, pest control agent, wood pest control agent, bait agent, animal ectoparasite control agent, sanitary pest control agent, etc. Can be used.
- the liquid insecticide composition of the present invention can be used as a home quarantine agent, an algae proofing agent such as a fish net, an antifungal agent such as wood, etc. by using in combination with other pest control agents as necessary. Can do.
- the application amount of the liquid insecticide composition of the present invention varies depending on the concentration of the neonicotinoid compound, the weather conditions at the time of application, the application method, the application location, the disease to be controlled, the target crop, etc., but neonicotinoid per hectare
- the amount of the system compound is usually 1 to 1000 g, preferably 10 to 100 g.
- the method for enhancing insecticidal power of the present invention is a method comprising using a silicone surfactant in combination with a neonicotinoid compound as an insecticidal active ingredient.
- the silicone surfactant is preferably polyoxyethylene-modified heptamethyltrisiloxane, and more preferably a compound represented by the above formula (I).
- a predetermined ratio of a water-soluble organic solvent solution of a neonicotinoid compound and a silicone surfactant for example, a neonicotinoid compound, a water-soluble organic solvent
- the neonicotinoid compound is preferably 0.1 to 60 parts by weight, more preferably 9 to 20 parts by weight, still more preferably 10 to 15 parts by weight, based on a total of 100 parts by weight of the silicone surfactant.
- the solvent is preferably 35 to 95 parts by mass, more preferably 65 to 90 parts by mass, still more preferably 70 to 85 parts by mass; the silicone surfactant is preferably 1 to 15 parts by mass, more preferably 2 to 10 parts by mass.
- water-soluble organic solvent solution of neonicotinoid compound and silicone surface active And then applying it to farmland, etc .; water-soluble organic solvent solution of neonicotinoid compound and silicone surface active And a method of applying simultaneously or before and after the solution of the agent to farmland.
- a non-silicone surfactant may be contained in the water-soluble organic solvent solution of the neonicotinoid compound or the solution of the silicone surfactant.
- Example 1 10 parts by mass of acetamiprid (purity 99.8%; manufactured by Nippon Soda Co., Ltd.) was added to a mixed solvent consisting of 50 parts by mass of ⁇ -butyrolactone and 30 parts by mass of dipropylene glycol, and dissolved by stirring. There are 5 parts by mass of a polyoxyethylene polyoxypropylene block polymer as a non-silicone nonionic surfactant, and a polyoxyethylene-modified heptamethyltrimethyl having a structure represented by the above formula (I) as a silicone surfactant. 5 parts by mass of siloxane was added and dissolved by stirring to obtain a uniform liquid insecticide composition.
- acetamiprid purity 99.8%; manufactured by Nippon Soda Co., Ltd.
- Comparative Example 1 A uniform liquid insecticide composition in the same manner as in Example 1 except that 5 parts by mass of polyoxyethylene tridecyl ether (HLB10.5) was used instead of 5 parts by mass of polyoxyethylene-modified heptamethyltrisiloxane. Got.
- Comparative Example 2 A mixed solvent composed of 56.25 parts by mass of ⁇ -butyrolactone and 33.75 parts by mass of dipropylene glycol, 5 parts by mass of a polyoxyethylene polyoxypropylene block polymer as a non-silicone nonionic surfactant, and a silicone surfactant As follows, 5 parts by mass of polyoxyethylene-modified heptamethyltrisiloxane was added and dissolved by stirring. This was diluted 1000 times with water to obtain a liquid composition.
- Comparative Example 3 To 99 parts by mass of the liquid composition obtained in Comparative Example 2, 1 part by mass of polyoxyethylene-modified heptamethyltrisiloxane having a structure represented by the above formula (I) as a silicone surfactant is added and stirred. To obtain a uniform liquid composition.
- Test Example 1 (Physical properties) The liquid insecticide composition obtained in Example 1 was diluted 1000 times with water. The surface tension and contact angle of this were measured. The liquid insecticide composition obtained in Comparative Example 1 was diluted 1000 times with water. The surface tension and contact angle of this were measured. The results are shown in Table 1. The contact angle is a value measured when a liquid to be measured is dropped on a paraffin section and 1 minute has passed since the dropping.
- Test example 2 (control test) The liquid insecticide composition obtained in Example 1 was diluted 1000 times with water to obtain a diluted solution having an acetamiprid concentration of 100 ppm. The liquid insecticide composition obtained in Comparative Example 1 was diluted 1000 times with water to obtain a diluted solution having an acetamiprid concentration of 100 ppm. Each diluted solution was sprayed onto the chingensai with a glass nozzle and air-dried. Thereafter, 5 adults of each of the kissing beetles were inoculated. The test was repeated twice for each diluent, and observed when the time shown in Table 2 had elapsed from the inoculation to determine the mortality rate, the bitter worm rate, and the number of food damages. The results are shown in Table 2. The mortality rate and the morbidity rate are average values of 2 repetitions, and the number of damages is the sum of 2 repetitions.
- Test example 3 (control comparative test) Each liquid composition obtained in Comparative Example 2 and Comparative Example 3 was sprayed on a linglet with a glass nozzle and air-dried. Thereafter, 5 adults of each of the chinensis leaf beetles were inoculated into the linglet rhinoceros. Observed when the time shown in Table 3 had elapsed from the inoculation, the mortality rate, the bitter worm rate, and the number of food damage were determined. The test was repeated twice for each dilution. The results are shown in Table 3.
- Test example 4 (control reference test) In each of the liquid compositions obtained in Comparative Example 2 and Comparative Example 3, 5 adult kissing beetles were immersed for about 20 seconds. Thereafter, 5 adults of each of the kissing worm beetles were inoculated into the beetles. Observed when the time shown in Table 4 had elapsed from the inoculation, the mortality rate, the bitter worm rate and the number of food damages were determined. The test was repeated twice for each dilution. The results are shown in Table 4.
- the liquid insecticide composition obtained in Comparative Example 1 took a long time to reach 80% bitterness / mortality. Moreover, the tendency of the liquid insecticide composition obtained in Comparative Example 1 to be higher in the number of food damages was also observed. Thus, it can be seen that the liquid insecticide composition obtained in Example 1 exhibits a knockdown effect more quickly than the liquid insecticide composition obtained in Comparative Example 1.
- the liquid composition obtained in Comparative Example 2 using only the silicone-based surfactant and the liquid composition obtained in Comparative Example 3 containing a high concentration of the silicone-based surfactant are directly applied to insects. In this case, no insecticidal effect was observed.
- the liquid insecticide composition of the present invention has an excellent knockdown effect even when the active ingredient does not directly touch the worm body, and can kill insects with a high rate of effectiveness. Moreover, the liquid insecticide composition of this invention is suitable as a water-soluble liquid agent for agriculture and horticulture. Therefore, the liquid insecticide composition of the present invention is industrially useful.
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Abstract
Description
そこで、本発明の目的は、アセタミプリド、イミダクロプリド、チアメトキサム等のネオニコチノイド系化合物を有効成分として含有し、優れた速効的殺虫活性を示す水溶性液剤として好適な液状殺虫剤組成物を提供することである。
ところで、特許文献4には、シリコーン系界面活性剤を、高濃度で、具体的に0.1重量%以上で、ゴキブリ等の害虫に直接適用すると殺効果を示すことが、記載されている。また、シリコーン系界面活性剤を、除草剤を製剤化する時の添加剤として、除草剤を使用するときの湿展剤として、または除草剤の効力を高めるための効力増強剤として用いることを提案しているものがある。しかし、シリコーン系界面活性剤を上記のような間接的に虫体に作用するような方法での施用において殺虫効果が得られたとする知見は見出されていなかった。
本発明者らは、上記目的を達成すべく鋭意検討した。その結果、ネオニコチノイド系化合物、シリコーン系界面活性剤および水溶性有機溶剤を含有する液状組成物を農園芸用水溶性液剤として用いると、有効成分がたとえ虫体に直接触れることがなくても、ノックダウン効果に優れ、高い速効性で殺虫できることを見出した。本発明はこの知見に基づいてさらに検討することによって完成するに至ったものである。
〔1〕 ネオニコチノイド系化合物、シリコーン系界面活性剤および水溶性有機溶剤を含有する液状殺虫剤組成物。
〔2〕 前記ネオニコチノイド系化合物がアセタミプリドである上記〔1〕に記載の液状殺虫剤組成物。
〔3〕 前記シリコーン系界面活性剤がポリエーテル変性ポリシロキサンである上記〔1〕または〔2〕に記載の液状殺虫剤組成物。
〔4〕 前記シリコーン系界面活性剤がポリオキシエチレン変性ヘプタメチルトリシロキサンである上記〔1〕または〔2〕に記載の液状殺虫剤組成物。
〔5〕 前記シリコーン系界面活性剤が式(I)
〔6〕 前記ネオニコチノイド系化合物、前記水溶性有機溶剤および前記シリコーン系界面活性剤の合計100質量部において、ネオニコチノイド系化合物が0.1~60質量部;水溶性有機溶剤が35~95質量部;シリコーン系界面活性剤が1~15質量部である上記〔1〕~〔5〕のいずれかひとつに記載の液状殺虫剤組成物。
〔8〕 前記非シリコーン系ノニオン性界面活性剤がポリオキシアルキレンブロックポリマーである上記〔7〕に記載の液状殺虫剤組成物。
〔9〕 前記ネオニコチノイド系化合物、前記水溶性有機溶剤、前記シリコーン系界面活性剤および前記非シリコーン系ノニオン性界面活性剤の合計100質量部において、ネオニコチノイド系化合物が0.1~60質量部、水溶性有機溶剤が35~95質量部、およびシリコーン系界面活性剤と非シリコーン系ノニオン性界面活性剤との合計が1~30質量部である上記〔7〕または〔8〕に記載の液状殺虫剤組成物。
〔10〕 農園芸用途に用いられることを特徴とする、上記〔1〕~〔9〕のいずれかひとつに記載の液状殺虫剤組成物。
本発明に用いられるネオニコチノイド系化合物は、農薬活性成分として公知の物質である。具体例としては、アセタミプリド、イミダクロプリド、クロチアニジン、ジノテフラン、チアクロプリド、チアメトキサム、ニテンピラムなどが挙げられる。これらの中でもアセタミプリドが好ましい。
本発明に用いられる水溶性有機溶剤は、水に可溶で且つネオニコチノイド系化合物を溶解し得る有機溶剤であれば特に限定されない。水溶性有機溶剤は、水と相互混和性を有するものであることが特に好ましい。
水溶性有機溶剤の具体例としては、エタノール、n-プロパノール、イソプロパノール等のアルコール類;エチレングリコール、プロピレングリコール、グリセロール等のグリコール類;ジメチルスルホキシド;アセトン、メチルエチルケトン、シクロヘキサノン、イソホロン等のケトン類;γ‐ブチロラクトン等のラクトン類;ジエチレングリコール、ジプロピレングリコール等のグリコールエーテル類;プロピレンカーボネート;ジメチルアセトアミド、ジメチルホルムアミド等のアミド類;N-メチルピロリドン等のピロリドン類等が挙げられる。これらの中でも揮発性が低くかつ安全性が高いという観点から、ジメチルスルホキシド、γ-ブチロラクトン、ジプロピレングリコール、ジメチルアセトアミド、N-メチルピロリドンが好ましい。
本発明に用いられるシリコーン系界面活性剤は、好ましくはシリコーン系ノニオン性界面活性剤、より好ましくはポリオルガノシロキサン部とポリオキシアルキレン部とを有するシリコーン系界面活性剤である。
ポリオルガノシロキサン部としては、ポリメチルシロキサンおよび/またはポリジメチルシロキサンが好ましい。また、ポリオキシアルキレン部としては、ポリエチレンオキシドおよび/またはポリプロピレンオキシドが好ましい。
これらの中でも、ポリエーテル変性ポリシロキサンが好ましく、ポリオキシエチレン変性ヘプタメチルトリシロキサンがより好ましく、式(I)
非シリコーン系ノニオン性界面活性剤としては、特に限定されないが、ポリオキシエチレンアルキルエーテル、ポリオキシアルキレンアルキルエーテル、ポリオキシエチレンアルキルアリールエーテル、ポリオキシエチレンスチリルフェニルエーテル、ポリオキシエチレン植物油エーテル、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレンフェニルエーテルポリマー、ポリオキシエチレンアルキレンアリールフェニルエーテル、ポリオキシアルキレンアリールフェニルエーテル、ポリオキシエチレンアルキレングリコール、ポリオキシエチレンポリオキシプロピレンブロックポリマー、アセチレングリコール系界面活性剤(2,4,7,9-テトラメチル-デシン-4,7-ジオール等)、等が挙げられる。
これらの中でも、ポリオキシアルキレンブロックポリマーが好ましい。ポリオキシアルキレンブロックポリマーは、エチレンオキシド、プロピレンオキシドおよびブチレンオキシド等のモノマーがブロック共重合し、もしくはさらに末端の水酸基の1個がアルキル基またはアルケニル基でエーテル化されてなる化合物である。上記ブロックの個数および結合順序に関して各種のものがある。具体例としては、プルロニックシリーズ(登録商標、ビーエーエスエフ社)等が挙げられる。
非シリコーン系ノニオン性界面活性剤は1種単独で若しくは2種以上を組み合わせて用いることができる。
シリコーン系界面活性剤/非シリコーン系ノニオン性界面活性剤の質量比は、好ましくは100/0~30/70、より好ましくは100/0~50/50である。
他の非シリコーン系界面活性剤としては、タローアミンエチレンオキサイド付加物、オレイルアミンエチレンオキサイド付加物、ソイアミンエチレンオキサイド付加物、ココアミンエチレンオキサイド付加物、合成アルキルアミンエチレンオキサイド付加物、オクチルアミンエチレンオキサイド付加物等のアルキルアミンエチレンオキサイド付加物;アルキルアミンプロピレンオキサイド付加物;これらの化合物から誘導された4級アンモニウム化合物;及びこれらの混合物等の非シリコーン系カチオン性界面活性剤;ポリカルボン酸型界面活性剤、リグニンスルホン酸塩、アルキルアリールスルホン酸塩、ジアルキルスルホサクシネート、ポリオキシエチレンアルキルアリールエーテルサルフェート、アルキルナフタレンスルホン酸塩、ポリオキシエチレンスチリルフェニルエーテルサルフエート、アルキルベンゼンスルホン酸塩、アルキル硫酸塩等の非シリコーン系アニオン性界面活性剤;ラウリルジメチルアミンオキサイド、アルモックス(Armox)C/12、アミンオキサイド、モナテリックス(Monaterics)、ミラノール(Miranols)、ベタイン、ロンザイン(Lonzaines)、およびこれらの混合物等の非シリコーン系両性界面活性剤が挙げられる。
本発明の液状殺虫剤組成物は、本発明の効果を損なわない範囲内において、紫外線吸収剤、酸化防止剤、防腐剤、効力増強剤、着色剤、香料、粘結剤、増粘剤、粘度調整剤等の補助剤などを含有することができる。
また、本発明の液状殺虫剤組成物は、本発明の効果を損なわない範囲内において、ネオニコチノイド系化合物以外の農薬活性成分を含有することができる。他の農薬活性成分として、殺菌剤、殺カビ剤、殺バクテリア剤、殺ダニ剤、殺虫剤、除草剤、成長調節剤などが挙げられる。
また、本発明の液状殺虫剤組成物は、ネオニコチノイド系化合物、水溶性有機溶剤、シリコーン系界面活性剤および非シリコーン系ノニオン性界面活性剤の組成比によって特に限定されないが、好適な組成比は、ネオニコチノイド系化合物、水溶性有機溶剤、シリコーン系界面活性剤および非シリコーン系ノニオン性界面活性剤の合計100質量部において、ネオニコチノイド系化合物が好ましくは0.1~60質量部、より好ましくは9~20質量部、さらに好ましくは10~15質量部;水溶性有機溶剤が好ましくは35~95質量部、より好ましくは65~90質量部、さらに好ましくは70~85質量部;シリコーン系界面活性剤および非シリコーン系ノニオン性界面活性剤の合計が好ましくは1~30質量部、より好ましくは1~15質量部、さらに好ましくは5~15質量部である。
上記のような組成比においては、ネオニコチノイド系化合物を失活させずに高濃度で溶解させることができ、該組成物を水で希釈した際に白濁や沈殿などを起こし難くなる上に、本発明の主目的である速効的殺虫効果を確実に奏することができる。
本発明の液状殺虫剤組成物は、そのままでまたは水等で希釈することによって、水溶性液剤(SL液剤)として使用することができる。
本発明の液状殺虫剤組成物を、虫体に直接触れるような方法で施用すれば、当然に速効的殺虫効果を発揮する。本発明の液状殺虫剤組成物を散布等して、種子、植物体、植物が生育する土壌中若しくは水面等に付着させる、または植物等に吸収させるなどの間接的に虫体に作用するような方法で施用した場合でも、優れた速効的殺虫効果を発揮する。従って本発明の液状殺虫剤組成物は、農園芸用途に特に適している。
また、本発明の液状殺虫剤組成物は、他の殺菌剤、殺虫剤、除草剤、展着剤、肥料、土壌改良剤等とともに施用することができる。
農耕地処理では、種芋等への吹き付け処理、粉衣処理、散布塗布、浸漬処理等に用いられる種子処理剤として;散布処理、トップドレッシング処理等に用いられる茎葉処理剤として;表面散布処理、混和処理、灌注処理、燻蒸処理、植穴処理、株元処理、作条処理、播溝処理、育苗箱処理、育苗ポット処理等に用いられる土壌処理剤として;粒剤処理、ジャンボ剤処理、フロアブル剤処理等に用いられる水田処理剤として;燻蒸処理、芝生用処理等に用いられるその他の処理剤として、本発明の液状殺虫剤組成物を使用することができる。
併用の仕方としては、農地等への施用の直前に、ネオニコチノイド系化合物の水溶性有機溶媒溶液とシリコーン系界面活性剤とを所定の割合、例えば、ネオニコチノイド系化合物、水溶性有機溶剤およびシリコーン系界面活性剤の合計100質量部において、ネオニコチノイド系化合物が好ましくは0.1~60質量部、より好ましくは9~20質量部、さらに好ましくは10~15質量部;水溶性有機溶剤が好ましくは35~95質量部、より好ましくは65~90質量部、さらに好ましくは70~85質量部;シリコーン系界面活性剤が好ましくは1~15質量部、より好ましくは2~10質量部となる割合で、混ぜ合わせ、次いで、それを農地等に施用する方法;ネオニコチノイド系化合物の水溶性有機溶媒溶液とシリコーン系界面活性剤の溶液とを農地等に同時にまたは前後して施用する方法などが挙げられる。また、ネオニコチノイド系化合物の水溶性有機溶媒溶液またはシリコーン系界面活性剤の溶液には非シリコーン系界面活性剤が含まれていてもよい。
アセタミプリド(純度99.8%;日本曹達社製)10質量部を、γ-ブチロラクトン50質量部およびジプロピレングリコール30質量部からなる混合溶剤に添加し撹拌して、溶解させた。これに、非シリコーン系ノニオン性界面活性剤としてポリオキシエチレンポリオキシプロピレンブロックポリマー5質量部、およびシリコーン系界面活性剤として上記式(I)で表される構造を有するポリオキシエチレン変性ヘプタメチルトリシロキサン5質量部を添加し撹拌して溶解させ、均一な液状殺虫剤組成物を得た。
ポリオキシエチレン変性ヘプタメチルトリシロキサン5質量部に代えて、ポリオキシエチレントリデシルエーテル(HLB10.5)5質量部を用いた以外は、実施例1と同じ方法で、均一な液状殺虫剤組成物を得た。
γ-ブチロラクトン56.25質量部およびジプロピレングリコール33.75質量部からなる混合溶剤に、非シリコーン系ノニオン性界面活性剤としてポリオキシエチレンポリオキシプロピレンブロックポリマー5質量部、およびシリコーン系界面活性剤としてポリオキシエチレン変性ヘプタメチルトリシロキサン5質量部を添加し撹拌して溶解させた。これを水で1000倍に希釈して、液状組成物を得た。
比較例2において得られた液状組成物99質量部に、シリコーン系界面活性剤としての上記式(I)で表される構造を有するポリオキシエチレン変性ヘプタメチルトリシロキサン1質量部を添加し撹拌して溶解させ、均一な液状組成物を得た。
実施例1において得られた液状殺虫剤組成物を水で1000倍に希釈した。これの表面張力および接触角を測定した。比較例1において得られた液状殺虫剤組成物を水で1000倍に希釈した。これの表面張力および接触角を測定した。それらの結果を表1に示す。なお、接触角は、測定対象の液をパラフィン切片上に滴下し、滴下から1分間経過した時に測定した値である。
実施例1において得られた液状殺虫剤組成物を水で1000倍に希釈して、アセタミプリド濃度100ppmの希釈液を得た。比較例1において得られた液状殺虫剤組成物を水で1000倍に希釈して、アセタミプリド濃度100ppmの希釈液を得た。
各希釈液をガラスノズルでチンゲンサイに散布し、風乾した。その後、キスジノミハムシ成虫を各5頭接種した。試験は希釈液毎に2反復実施し、接種から表2に示す時間を経過した時に観察し、死亡虫率、苦悶虫率および食害痕数を求めた。その結果を表2に示す。死亡虫率及び苦悶虫率は2反復の平均値であり、食害痕数は2反復の合計である。
比較例2および比較例3において得られた各液状組成物をガラスノズルでチンゲンサイに散布し、風乾した。その後、該チンゲンサイに、キスジノミハムシ成虫を各5頭接種した。接種から表3に示す時間を経過した時に観察し、死亡虫率、苦悶虫率および食害痕数を求めた。試験は希釈液毎に2反復実施した。その結果を表3に示す。
比較例2および比較例3において得られた各液状組成物に、キスジノミハムシ成虫各5頭を約20秒間浸漬した。その後、チンゲンサイに、当該キスジノミハムシ成虫各5頭を接種した。接種から表4に示す時間を経過した時に観察し、死亡虫率、苦悶虫率および食害痕数を求めた。試験は希釈液毎に2反復実施した。その結果を表4に示す。
一方、シリコーン系界面活性剤のみを用いた比較例2において得られた液状組成物および高濃度のシリコーン系界面活性剤を含有する比較例3において得られた液状組成物では、虫体に直接適用した場合においても、殺虫効果は全く見られなかった。
Claims (13)
- ネオニコチノイド系化合物、シリコーン系界面活性剤および水溶性有機溶剤を含有する液状殺虫剤組成物。
- 前記ネオニコチノイド系化合物がアセタミプリドである請求項1に記載の液状殺虫剤組成物。
- 前記シリコーン系界面活性剤がポリエーテル変性ポリシロキサンである請求項1または2に記載の液状殺虫剤組成物。
- 前記シリコーン系界面活性剤がポリオキシエチレン変性ヘプタメチルトリシロキサンである請求項1または2に記載の液状殺虫剤組成物。
- 前記ネオニコチノイド系化合物、前記水溶性有機溶剤および前記シリコーン系界面活性剤の合計100質量部において、ネオニコチノイド系化合物が0.1~60質量部;水溶性有機溶剤が35~95質量部;シリコーン系界面活性剤が1~15質量部である請求項1~5のいずれか1項に記載の液状殺虫剤組成物。
- 非シリコーン系ノニオン性界面活性剤をさらに含有する請求項1~6のいずれか1項に記載の液状殺虫剤組成物。
- 前記非シリコーン系ノニオン性界面活性剤がポリオキシアルキレンブロックポリマーである請求項7に記載の液状殺虫剤組成物。
- 前記ネオニコチノイド系化合物、前記水溶性有機溶剤、前記シリコーン系界面活性剤および前記非シリコーン系ノニオン性界面活性剤の合計100質量部において、ネオニコチノイド系化合物が0.1~60質量部、水溶性有機溶剤が35~95質量部、およびシリコーン系界面活性剤と非シリコーン系ノニオン性界面活性剤との合計が1~30質量部である請求項7または8に記載の液状殺虫剤組成物。
- 農園芸用途に用いられることを特徴とする、請求項1~9のいずれか1項に記載の液状殺虫剤組成物。
- 殺虫活性成分としてのネオニコチノイド系化合物にシリコーン系界面活性剤を併用することを含む殺虫効力増強方法。
- 前記シリコーン系界面活性剤がポリオキシエチレン変性ヘプタメチルトリシロキサンである請求項11に記載の殺虫効力増強方法。
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JP2015151480A (ja) * | 2014-02-17 | 2015-08-24 | 日信化学工業株式会社 | 水溶性界面活性剤組成物及びそれを配合したインク組成物 |
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US10172293B2 (en) * | 2012-11-30 | 2019-01-08 | Injekta Environmental Pty Ltd | Soil remediation composition |
CN107787183B (zh) * | 2015-04-20 | 2021-10-08 | 三井化学Agro株式会社 | 肥料兼农用化学品制剂 |
US10188102B2 (en) | 2015-07-15 | 2019-01-29 | Momentive Performance Materials Inc. | Low foam surfactant composition and methods of making the same |
CN107384194B (zh) * | 2017-06-16 | 2020-02-28 | 海昌隐形眼镜有限公司 | 改善非水凝胶角膜接触镜表面亲水性的处理液与处理方法 |
TWI830841B (zh) * | 2018-12-28 | 2024-02-01 | 日商花王股份有限公司 | 害蟲忌避組合物 |
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EP2708123B1 (en) | 2019-07-03 |
EP2708123A4 (en) | 2014-12-03 |
US20140066405A1 (en) | 2014-03-06 |
CN103561569B (zh) | 2016-05-18 |
KR101856809B1 (ko) | 2018-05-10 |
CA2835161C (en) | 2015-12-22 |
ES2742272T3 (es) | 2020-02-13 |
CA2835161A1 (en) | 2012-11-15 |
JPWO2012153735A1 (ja) | 2014-07-31 |
EA201391463A1 (ru) | 2014-03-31 |
KR20160054025A (ko) | 2016-05-13 |
BR112013028531B1 (pt) | 2018-11-06 |
EA023800B1 (ru) | 2016-07-29 |
EP2708123A1 (en) | 2014-03-19 |
BR112013028531A2 (pt) | 2016-08-09 |
KR20130136578A (ko) | 2013-12-12 |
HUE044990T2 (hu) | 2019-12-30 |
UA109190C2 (xx) | 2015-07-27 |
CN103561569A (zh) | 2014-02-05 |
US9693562B2 (en) | 2017-07-04 |
RS59230B1 (sr) | 2019-10-31 |
JP5847810B2 (ja) | 2016-01-27 |
PL2708123T3 (pl) | 2019-12-31 |
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