CN116210712A - Insecticidal composition containing diafenthiuron and application thereof - Google Patents
Insecticidal composition containing diafenthiuron and application thereof Download PDFInfo
- Publication number
- CN116210712A CN116210712A CN202211408982.9A CN202211408982A CN116210712A CN 116210712 A CN116210712 A CN 116210712A CN 202211408982 A CN202211408982 A CN 202211408982A CN 116210712 A CN116210712 A CN 116210712A
- Authority
- CN
- China
- Prior art keywords
- insecticidal composition
- diafenthiuron
- active ingredient
- bistrifluron
- insecticidal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000203 mixture Substances 0.000 title claims abstract description 57
- WOWBFOBYOAGEEA-UHFFFAOYSA-N diafenthiuron Chemical compound CC(C)C1=C(NC(=S)NC(C)(C)C)C(C(C)C)=CC(OC=2C=CC=CC=2)=C1 WOWBFOBYOAGEEA-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 33
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- 239000004480 active ingredient Substances 0.000 claims abstract description 28
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- 230000010627 oxidative phosphorylation Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000004300 potassium benzoate Substances 0.000 description 1
- 235000010235 potassium benzoate Nutrition 0.000 description 1
- 229940103091 potassium benzoate Drugs 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- LROWVYNUWKVTCU-STWYSWDKSA-M sodium sorbate Chemical compound [Na+].C\C=C\C=C\C([O-])=O LROWVYNUWKVTCU-STWYSWDKSA-M 0.000 description 1
- 235000019250 sodium sorbate Nutrition 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
-
- 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
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of agricultural pest control, and particularly relates to an insecticidal composition containing diafenthiuron. The insecticidal composition comprises active ingredients of bistrifluron and diafenthiuron, wherein the mass ratio of the active ingredients of bistrifluron to diafenthiuron is 1:30-50:1. The insecticidal composition has obvious synergistic effect, can enhance the activity on target pests, expand the insecticidal spectrum, and simultaneously can reduce the resistance generated by single administration, thereby achieving the effects of synergism and application reduction.
Description
Technical Field
The invention relates to the field of agricultural pest control, in particular to a pesticide composition containing diafenthiuron and application thereof.
Background
Diafenthiuron is a thiourea insecticide and acaricide, which was first registered by the former Nohua Limited of Switzerland in 1994 and used for cabbage moth control. The chemical name is 1-tertiary butyl-3- (2, 6-diisopropyl-4-phenoxyphenyl) thiourea. Diafenthiuron is converted into corresponding carbodiimide through light or living bodies to block the oxidative phosphorylation process of nerve cell mitochondria in the insect body, thereby affecting the respiration of the insect body and leading the insect to be dead, thus being a mitochondrial respiration inhibitor.
Bistrifluoracene is a high-efficiency insect growth regulator screened from benzoyl urea derivatives, and has the chemical name: 1- [ (2-fluoro-3, 5-bis (trifluoromethyl) phenyl) -3- (2, 6-difluorobenzoyl) ] urea. The benzoyl urea derivatives (BPUS) are Insect Growth Regulators (IGRs) which inhibit the synthesis of insect chitin and have stomach toxicity, have higher specificity, are very effective on young insects, can be rapidly degraded in the environment, and have low toxicity on mammals.
In the agricultural production process, the control of various harmful insects mainly depends on the application of a large amount of pesticide products, and the pesticide is used in a large amount and frequently unreasonably, so that the drug resistance of the harmful insects is continuously enhanced, the damage to crops is more serious, and the control is more difficult. Two or more medicaments with different action mechanisms can be mixed to achieve the aim of controlling different pests, improving the control effect of the medicaments and reducing the generation of drug resistance of the pests. In addition, in the prior art, the technical scheme of the composition containing the bistrifluron and the diafenthiuron is not specifically disclosed.
Disclosure of Invention
The invention aims to provide a composition containing bistrifluron and diafenthiuron, which has the advantages of synergistic effect, low use cost and good control effect.
In order to achieve the above purpose, the invention adopts the following technical scheme: the insecticidal composition comprises an active ingredient A bistrifluron and an active ingredient B diafenthiuron, wherein the mass ratio of the active ingredient A to the active ingredient B is 1:30-50:1;
further, the mass ratio of the bistrifluron to the diafenthiuron is 1:30, 1:20, 1:10, 1:5, 1:3, 5:1, 15:1, 25:1, 30:1, 35:1, 50:1;
further, the weight part ratio of the active ingredient A to the active ingredient B is 1:20-35:1;
further, the mass ratio of the active ingredient A to the active ingredient B is 1:5-30:1;
further, the mass ratio of the active ingredient A to the active ingredient B is 1:3-25:1;
further, the sum of the contents of the active ingredient A and the active ingredient B in the insecticidal composition is 1 to 85 percent based on 100 weight percent of the total mass of the insecticidal composition;
further, the sum of the contents of the active ingredient A and the active ingredient B in the insecticidal composition is 5 to 60 percent based on 100 weight percent of the total mass of the insecticidal composition;
further, the insecticidal composition further comprises an auxiliary agent, wherein the auxiliary agent comprises a carrier and an auxiliary agent;
further, the carrier is one or more of water, solvent or filler;
further, the water is deionized water;
further, the solvent is selected from one or more of N, N-dimethylformamide, cyclohexanone, toluene, xylene, dimethyl sulfoxide, methanol, ethanol, trimethylcyclohexanone, N-octyl pyrrolidone, ethanolamine, triethanolamine, isopropylamine, N-methylpyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, ethylene glycol methyl ether, butyl ether, ethanolamine, isopropylamine, ethyl acetate or acetonitrile;
further, the filler is selected from one or a mixture of more of kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or light calcium carbonate;
the auxiliary agent at least comprises a surfactant, and other functional auxiliary agents such as an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent, a defoaming agent, a slow-release agent, a binder and the like can be added according to different use occasions and requirements;
the surfactant is selected from one or more of an emulsifier, a dispersant, a wetting agent, a dispersion medium or a penetrating agent. The surfactant is a single agent or a compound preparation of a common nonionic surfactant or an anionic surfactant;
the other functional auxiliary agents are selected from one or more of antifreezing agents, thickening agents, stabilizing agents, disintegrating agents or defoaming agents;
further, the emulsifier is selected from one or more of nong Ru 500# (calcium alkylbenzenesulfonate), OP series phosphate (surfactant phosphate), no. 600 phosphate (phenylphenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether wetting agent salt, alkyl diphenyl ether disulfonate magnesium salt, triethanolamine salt, nong Ru 400# (benzyl dimethyl phenol polyoxyethylene ether), nong Ru 700# (alkylphenol formaldehyde resin polyoxyethylene ether), ning Ru 36# (phenethyl phenol formaldehyde resin polyoxyethylene ether), nong Ru 1600# (phenethyl phenol polyoxyethylene polypropylene ether), ethylene oxide-propylene oxide block copolymer, OP series (surfactant), BY series (castor oil polyoxyethylene ether), nong Ru 33# (alkylaryl polyoxyethylene polyoxypropylene ether), span series (sorbitan monostearate), tween series (sorbitan fatty acid ester polyoxyethylene ether) or AEO series (fatty alcohol polyoxyethylene ether);
further, the dispersing agent is selected from one or more of polycarboxylate, lignosulfonate, alkylphenol ethoxylate formaldehyde condensate sulfate, calcium alkylbenzenesulfonate, naphthalene sulfonate formaldehyde condensate sodium salt, alkylphenol ethoxylate, fatty amine ethoxylate, fatty acid ethoxylate or glycerin fatty acid ester ethoxylate;
further, the wetting agent is selected from one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrating agent F, chinese honeylocust fruit powder, silkworm excrement or soapberry powder;
further, the penetrating agent is selected from one or a mixture of more of penetrating agent JFC (fatty alcohol polyoxyethylene ether), penetrating agent T (diisooctyl maleate sulfonate), azone or organic silicon;
further, a dispersion medium such as one or more of soybean oil, rapeseed oil, wheat oil, methyl oleate, diesel oil, engine oil, mineral oil, and the like;
further, the antifreezing agent is selected from a mixture consisting of one or more of ethylene glycol, propylene glycol, glycerol or urea;
further, the thickener is selected from one or more of xanthan gum, disintegrating agent, bentonite, carboxymethyl cellulose or magnesium aluminum silicate;
further, the stabilizer is selected from one or a mixture of more of epoxidized soybean oil, epichlorohydrin, BHT, ethyl acetate and triphenyl phosphate;
further, the disintegrating agent is selected from one or a mixture of more of bentonite, urea, wetting agent, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate;
further, the defoamer is selected from one or a mixture of more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds or C8-C10 fatty alcohol compounds;
further, the insecticidal composition can be prepared into a preparation formulation acceptable in pesticides, including solid preparations, liquid preparations, seed treatment agents and other preparations;
further, the formulation of the insecticidal composition is suspending agent, water dispersible granule and wettable powder;
further, the composition is prepared into a suspending agent, and the suspending agent comprises the following components in percentage by weight: 0.1 to 50 percent of bistrifluron, 0.1 to 50 percent of diafenthiuron, 2 to 10 percent of dispersing agent, 2 to 10 percent of wetting agent, 0.01 to 2 percent of defoaming agent, 0 to 2 percent of thickening agent, 0 to 8 percent of antifreezing agent and the balance of deionized water;
further, the composition is prepared into water dispersible granules, and the components and the content of the water dispersible granules are preferably as follows: 0.1 to 50 percent of bistrifluron, 0.1 to 50 percent of diafenthiuron, 3 to 12 percent of dispersing agent, 1 to 8 percent of wetting agent, 1 to 10 percent of disintegrating agent and the balance of filler;
further, the composition is prepared into wettable powder, and the components and the content of the wettable powder are preferably as follows: 0.1 to 50 percent of bistrifluron, 0.1 to 50 percent of diafenthiuron, 5 to 20 percent of wetting agent, 10 to 20 percent of dispersing agent and 100 percent of solid carrier;
an application of the insecticidal composition containing bistrifluron and diafenthiuron in the aspect of controlling pests of agriculture, forestry and horticulture plants;
further, the agroforestry and horticultural plant pests are lepidoptera, coleopteran and thysanoptera pests;
further, the lepidoptera pests are prodenia litura, plutella xylostella, asparagus caterpillar and/or cabbage butterflies; the coleopteran pest is phyllotreta striolata and/or phyllotreta striolata; the thysanoptera pests are thrips;
further, the pesticidal composition is applied to a pest to be controlled or a medium on which it grows in an effective dose.
The insecticidal composition has the beneficial effects that:
(1) The bistrifluron and diafenthiuron in the composition are pesticides with completely different action mechanisms, so that the insecticidal effect is greatly improved, and the insecticidal time is shortened;
(2) The composition can enhance the activity on target pests and expand the insecticidal spectrum;
(3) The composition can also reduce the resistance generated by single administration, thereby achieving the effects of synergism and application reduction.
Detailed Description
The present invention will be further illustrated with reference to examples, in which percentages are by weight, but the present invention is not limited thereto.
Formulation preparation examples:
example 1:30% Ditrifluoracer diafenthiuron suspension (5:1)
The formula comprises the following components: 25% of bistrifluron, 5% of butyl ether urea, 3% of sodium dodecyl sulfate, 0.5% of naphthalene sulfonate formaldehyde condensate, 2.5% of styrol polyoxyethylene ether phosphate, 0.25% of carboxymethyl cellulose, 0.2% of xanthan gum, 5% of ethylene glycol, 0.2% of potassium benzoate, 0.5% of silicone oil and deionized water, and the balance of the composition;
the preparation method comprises the following steps: according to the formula proportion, the effective components of the bistrifluron, the diafenthiuron, the surfactant and other functional additives are sequentially placed in a reaction kettle, water is added for uniform mixing, and the suspending agent product is obtained through high-speed shearing, wet sanding and homogenizing and filtering.
Example 2:30% Ditrifluoracer diafenthiuron suspension (13:2)
The formula comprises the following components: 26% of bistrifluron, 4% of diafenthiuron, 3.5% of dodecyl polyoxyethylene ether phosphate, 1% of alkylphenol polyoxyethylene, 1% of polycarboxylic acid sodium salt, 2.5% of alkyl polyoxyethylene ether sodium sulfonate, 0.6% of carboxymethyl cellulose, 1.5% of glycerol, 2% of ethylene glycol, 0.1% of sodium benzoate, 0.3% of silicone oil and deionized water, wherein the balance is filled;
the preparation method comprises the following steps: as in example 1.
Example 3:22% Ditrifluoracer diafenthiuron suspension (10:1)
The formula comprises the following components: 20% of bistrifluron, 2% of butyl ether urea, 1% of fatty alcohol polyoxyethylene ether, 4% of alkylaryl polyoxyethylene ether polyoxypropylene ether, 2.5% of sodium alkylpolyoxyethylene ether sulfonate, 1% of sodium polycarboxylate, 1.5% of magnesium aluminum silicate, 0.1% of carboxyethyl cellulose, 0.5% of sodium sorbate, 5% of ethylene glycol, 0.3% of silicone oil and deionized water, and the balance of the composition;
the preparation method comprises the following steps: as in example 1.
Example 4:36% Ditrifluoracer diafenthiuron water dispersible granule (11:1)
The formula comprises the following components: 33% of bistrifluron, 3% of diafenthiuron, 8.5% of lignosulfonate, 3.5% of sodium dodecyl benzene sulfonate, 24% of starch and kaolin are used for the balance.
The preparation method comprises the following steps: according to the formula proportion of the embodiment, the active ingredients of the bistrifluron and the diafenthiuron are added into a carrier, and a surfactant and other functional auxiliary agents are added into the carrier, mixed, subjected to jet milling, added with 10-25% of water, and then kneaded, granulated, dried and screened to prepare the water dispersible granule product.
Example 5:30% Ditrifluoracer diafenthiuron water dispersible granule (5:1)
The formula comprises the following components: 25% of bistrifluron, 5% of diafenthiuron, 8.5% of sodium lignin sulfonate, 2.5% of nekal BX, 1.5% of sodium dodecyl benzene sulfonate, 10% of starch and the balance of kaolin.
The preparation method comprises the following steps: same as in example 4.
Example 6:40% Di-trifluoracer-diafenthiuron water dispersible granule (7:1)
The formula comprises the following components: 35% of bistrifluron, 5% of diafenthiuron, 7% of naphthalene sulfonate formaldehyde condensate, 2% of sodium polycarboxylate, 1% of fatty amine polyoxyethylene ether, 2% of nekal BX, 0.5% of urea and kaolin, and the balance being the rest.
The preparation method comprises the following steps: same as in example 4.
Indoor biological Activity assay
Combined toxicity of mixed bistrifluoracer and diafenthiuron to prodenia litura
The test is according to NY/T1154.14-2008, the 14 th part leaf dipping method of the pesticide indoor biological test rule.
Test insect source: prodenia litura (Spodoptera litura Fabricius);
the sensitive population is provided by a group research and development center, is collected in a suburban field radish field in Shandong province, and is continuously fed indoors for multiple generations;
test agent: 94.7% of the bistrifluron stock and 97% of the diafenthiuron stock were all provided in the group development.
And (3) preparation of a medicament: dissolving the raw materials with DMF respectively, preparing high-concentration mother solution respectively, diluting the mother solution with 0.1% Tween-80 aqueous solution, and setting 5 different concentrations for each treatment.
Test replicates: for each treatment, 4 replicates were treated with an aqueous solution containing 0.1% tween-80 as a control.
And (3) medicament treatment: taking fresh cabbage leaves, respectively soaking in liquid medicines with different concentrations for 10s, taking out, sucking off excessive liquid medicines, naturally airing, and placing into a disposable culture dish with the diameter of 12cm for culture. 20 2-year-old prodenia litura larvae were picked in each dish, and each treatment was repeated 4 times.
Feeding and observing: and (3) placing the treated insects to be tested at the temperature of 25 ℃ and the humidity of 60-70%, raising and observing under the condition that the photoperiod is L:D=16h:8h, and checking the dead insect number on each leaf after 48h of treatment.
Data statistics and analysis: the mortality rate of the blank control is less than 5% without correction; the death rate of the blank control is 5-10%, and the death rate needs to be corrected; the mortality rate of the blank control is more than 10%, and the test is needed to be carried out again. The calculation formula is as follows:
mixed agent theoretical toxicity index tti=ti A ×P A +TI B ×P B
Wherein: p (P) A 、P B The proportion of the active ingredient A, B in the composition is respectively.
Wherein A is bistrifluron and B is diafenthiuron.
Co-toxicity coefficient (CTC): CTC < 80 is antagonism, CTC > 120 is potentiation, and addition is between 80 and 120.
Test results: see Table 1
TABLE 1 results of indoor toxicity measurements of Di-trifluoracer and diafenthiuron compounded spodoptera litura
As can be seen from Table 1, the mixed combination of the bistrifluron and the diafenthiuron has a better combination effect on prodenia litura, the co-toxicity coefficient of the bistrifluron and the diafenthiuron is greater than 120 when the weight ratio of the bistrifluron to the diafenthiuron is 1:30-50:1, the synergistic effect is achieved, the co-toxicity coefficient of the bistrifluron and the diafenthiuron is greater than 130 when the weight ratio of the bistrifluron and the diafenthiuron is 1:30-35:1, the co-toxicity coefficient of the bistrifluron and the diafenthiuron is greater than 150 when the weight ratio of the bistrifluron and the diafenthiuron is 1:5-30:1, and the highest co-toxicity coefficient is 261.31.
Example of field efficacy
Double trifluoracer urea and diafenthiuron mixed pair prodenia litura field control effect
Test crops and targets: cabbage and prodenia litura;
test site: qingdao city peace city kernel megatown high village cabbage planting base;
test time: 2019, 9, 10;
test environment: the damage degree of the cabbages is consistent, the cultivation conditions of all the test communities are uniform, and the same fertilizer and water management level is adopted.
Test agent: 30% of the double-trifluoracer-diafenthiuron suspending agent (13:2), 30% of the double-trifluoracer-diafenthiuron water dispersible granule (5:1), 10% of the double-trifluoracer suspending agent and 50% of the diafenthiuron suspending agent, wherein the medicaments are provided by a group development center.
The test is based on: GB-T17980.13-2000 section 13 of pesticide field efficacy test criterion: the pesticide can be used for preventing and treating lepidoptera larva of cruciferous vegetables.
The test method comprises the following steps: the prodenia litura of cabbage is applied for 1 time in the initial period.
Cell area and repetition: each cell was repeated 4 times at 20 square meters per process.
The investigation method comprises the following steps: 10 cabbages were investigated per cell, the number of insect population was investigated before application, and the survival number of prodenia litura was investigated 3 days and 7 days after application.
Calculation formula and data analysis:
the calculation formula of the control effect is as follows:
wherein:
PT: control effect,%;
PT 0 : the number of living insects before the application of the medicine in the medicine treatment area is shown as the unit;
PT 1 : the number of living insects after the medicine is applied in the medicine treatment area is the unit of head;
CK 0 : the number of living insects before the application of the medicine in the blank control area is shown as the head;
CK 1 : the number of live insects after the application of the drug in the blank control area is shown as the head.
The result of the calculation retains two decimal places.
Table 2 field efficacy of Di-trifluoracene and diafenthiuron for controlling prodenia litura
Note that: the above data are all averages of 4 replicates, with values reserved for two decimal places.
The test results show that: the 30% of the double-trifluoracene diafenthiuron suspending agent (13:2) and the 30% of the double-trifluoracene diafenthiuron water dispersible granule (5:1) have good control effects on prodenia litura, and each compound medicament with 3d and 7d control effects after administration is better than two single-dose 10% of the double-trifluoracene suspending agent and 50% of the diafenthiuron suspending agent; the control effect of the 30% bistrifluron-diafenthiuron suspending agent (13:2) on prodenia litura is slightly better than that of the 30% bistrifluron-diafenthiuron water dispersible granule (5:1). Post-drug 3d,30% Di-trifluoracene diafenthiuron suspension (13:2) 60g ai/hm 2 The control effect is 87.53%, the 7d control effect of the 30% bistrifluron-diafenthiuron suspending agent (13:2) after the medicament is taken is 91.36%, and the control effect shows good quick-acting performance and lasting performance.
Through indoor toxicity measurement and field experiments, the pesticide composition compounded by the bistrifluron and the diafenthiuron has good control effect on lepidoptera, thysanoptera and coleopteran pests.
While the invention has been described in detail in terms of the general description and the specific embodiments, it will be apparent to those skilled in the art that various modifications and improvements can be made thereto without departing from the spirit of the invention.
Claims (10)
1. An insecticidal composition containing diafenthiuron, which is characterized in that: the insecticidal composition comprises an active ingredient A bistrifluron and an active ingredient B diafenthiuron, wherein the weight part ratio of the active ingredient A to the active ingredient B is 1:30-50:1.
2. The insecticidal composition of claim 1, wherein: the weight part ratio of the active ingredient A to the active ingredient B is 1:20-35:1.
3. The insecticidal composition of claim 1, wherein: the mass ratio of the active component A to the active component B is 1:5-30:1.
Preferably, the mass ratio of the active ingredient A to the active ingredient B is 1:3-25:1.
4. The insecticidal composition of claim 1, wherein: the sum of the contents of the active ingredient A and the active ingredient B in the insecticidal composition is 1 to 85 percent, preferably 5 to 60 percent, based on 100 weight percent of the total mass of the insecticidal composition.
5. The insecticidal composition of claim 1, wherein: the insecticidal composition further comprises an adjuvant comprising a carrier and an adjuvant.
6. The insecticidal composition of claim 5, wherein: the insecticidal composition can be prepared into a preparation formulation acceptable in pesticide.
7. The insecticidal composition of claim 6, wherein: the preparation of the insecticidal composition is suspending agent, water dispersible granule and wettable powder.
8. Use of the insecticidal composition according to any one of claims 1 to 7 for controlling agricultural and forestry and horticultural plant pests.
9. Use of a pesticidal composition according to claim 8, wherein: the agricultural, forestry and horticultural plant pests are lepidoptera, coleopteran and thysanoptera pests.
10. Use of a pesticidal composition according to claim 8, wherein: the pesticidal composition is applied to a pest to be controlled or a medium on which it grows in an effective dose.
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| CN102283230A (en) * | 2011-09-06 | 2011-12-21 | 江苏中旗化工有限公司 | Synergistic insecticide composition taking novaluron and diafenthiuron as main active ingredients and application thereof |
| CN103404525A (en) * | 2013-08-16 | 2013-11-27 | 利尔化学股份有限公司 | Agricultural pesticide composition and applications thereof |
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| CN102283230A (en) * | 2011-09-06 | 2011-12-21 | 江苏中旗化工有限公司 | Synergistic insecticide composition taking novaluron and diafenthiuron as main active ingredients and application thereof |
| CN103404525A (en) * | 2013-08-16 | 2013-11-27 | 利尔化学股份有限公司 | Agricultural pesticide composition and applications thereof |
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