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
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
• • 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
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
• • 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
  • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
• • 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
  • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
  • A01N65/08—Magnoliopsida [dicotyledons]
  • A01N65/18—Euphorbiaceae [Spurge family], e.g. ricinus [castorbean]
• • 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

Definitions

• the present invention relates to a pesticidal/ovicidal composition and a pesticidal/ovicidal method.
• Patent Document 1 discloses a fungicidal composition comprising a phospholipid and an edible oil.
• Patent Documents 2 to 4 disclose a miticide comprising animal and vegetable oils and a surfactant. These Documents, however, do not disclose that the above compositions work on mite eggs.
• Patent Document 5 discloses a triglyceride composed of unsaturated fatty acid, which shows high pesticidal and ovicidal effects by combining a coconut oil, a palm kernel oil, triglyceride composed of C 12 and C 14 fatty acids (mixing ratio: from 4:1 to 1:4), triglyceride composed of C 12 and C 18-1 fatty acids (mixing ratio: from 4:1 to 1:4), triglyceride composed of C 12 , C 14 and C 18-1 fatty acids (mixing ratio: 1-4:1-4:1-4), triglyceride composed of C 10 and C 8-1 fatty acids (mixing ratio: from 4:1 to 1:4), trioleate, and DO-100 (diglycerol oleate) or DL-100 (diglycerol laurate) with a specific adjuvant.
• glycerides other than the coconut oil and the palm kernel oil are synthetically produced, they require high production costs and are of little practical use.
• Patent Document 1 JP-A-53-47532
• Patent Document 2 JP-A-56-92207
• Patent Document 3 JP-A-56-138105
• Patent Document 4 JP-A-56-140911
• Patent Document 5 JP-A-2005-29489
• an object of the invention is to provide a pesticidal/ovicidal composition which has not only a pesticidal effect but also an ovicidal effect on crop pests.
• Another object of the invention is to provide a pesticidal/ovicidal method against crop pests.
• the present invention has been completed based on a finding that fats and oils having a particular fatty acid composition display excellent pesticidal/ovicidal effects on imagines, larvae and eggs of crop pests.
• the invention provides pesticidal/ovicidal compositions and pesticidal/ovicidal methods as described below.
• the pesticidal/ovicidal composition according to the invention employs triglyceride, which is used in food, as a main ingredient, it has no stress on human bodies and natural environments and no risk of drug resistance induction, and shows pesticidal and ovicidal effects even on crop pests which already have acquired resistances to other drugs.
• the composition according to the invention displays sufficient pesticidal and ovicidal effects even at lower concentrations.
• the triglyceride component (a) used for the composition of the invention contains oleic acid as a constituent fatty acid in an amount not less than 50%, preferably, not less than 55%, and more preferably, not less than 60% by mass.
• examples of such triglyceride include olive oil (containing oleic acid in an amount of 60-80% by mass), extra virgin olive oil (60-80% by mass), camellia oil (about 85% by mass), almond oil (60-70% by mass), avocado oil (64-94% by mass), tea seed oil (about 88% by mass), safflower oil (high oleic acid variety) (70-80% by mass), sunflower oil (high oleic acid variety) (75-80% by mass), and oils from other high oleic acid plants.
• sunflower oil (high oleic acid variety), safflower oil (high oleic acid variety) and extra virgin olive oil are preferred.
• composition according to the invention contains component (a) in an amount of 50-99.9 parts by mass, preferably, 70-99.9 parts by mass, and more preferably, 80-99.9 parts by mass, relative to 100 parts by mass of the total amount of components (a), (b) and (c).
• Triglyceride content of 50-99.9 parts by mass is preferred for the composition of the invention, because triglyceride content in such range tends to exert pesticidal/ovicidal effect.
• composition of the invention an adjuvant containing component (b) or components (b) and (c) is used.
• Adjuvant component (b) is a nonionic surface active agent, and preferably at least one selected from the group consisting of fatty acid esters and amino acid derivatives.
• fatty acid esters examples include polyoxyethylene fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters and polyoxyethylene glyceryl ether fatty acid esters.
• polyoxyethylene fatty acid esters examples include polyoxyethylene castor oil and polyoxyethylene hydrogenated castor oil.
• Polyoxyethylene castor oil is most preferable
• the mole number of polyoxyethylene groups added is preferably between 5-80 moles, more preferably between 10-60 moles, and most preferably between 20-50 moles.
• the amino acid derivatives are preferably pyroglutamic acid esters, and more preferably, N-acyl glutamic acid esters.
• the pesticidal/ovicidal composition of the invention contains component (b) in an amount of 0.1-20 parts by mass, preferably, 0.1-10 parts by mass, and more preferably, 0.5-5 parts by mass, relative to 100 parts by mass of the total amount of the components (a), (b) and (c).
• the pesticidal/ovicidal composition of the invention further includes a glycerin derivative as adjuvant component (c).
• a glycerin derivative for component (c) include monoglycerol fatty acid esters and polyglycerol fatty acid esters. More specifically, glycerol monoalkyl fatty acid esters, glycerol dialkyl fatty acid esters, polyglycerol monoalkyl fatty acid esters and polyglycerol polyalkyl fatty acid esters are included. Among these, polyglycerol fatty acid esters are preferred, and diglycerol fatty acid esters are more preferred.
• constituent fatty acids for such esters are C 12 -C 18 fatty acids, such as oleic acid and lauric acid.
• diglycerol oleate DO-100
• diglycerol laurate DL-100
• tetraglycerol oleate J-4581
• hexaglycerol laurate J-6021
• decaglycerol oleate J-0381
• polyglycerol oleate AG-7520
• the pesticidal/ovicidal composition of the invention may contain component (c) in an amount of 0-30 parts by mass, preferably, 0.5-20 parts by mass, and more preferably, 1.0-10 parts by mass, relative to 100 parts by mass of the total amount of components (a), (b) and (c).
• the pesticidal/ovicidal composition of the invention may optionally include a lower alcohol as component (d).
• a lower alcohol include a C 1 -C 4 aliphatic alcohol, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, isobutanol.
• ethanol, 1-propanol and 2-propanol are preferable, and 1-propanol and 2-propanol are more preferable.
• the pesticidal/ovicidal composition of the invention may contain optional component (d) in an amount not more than 10 parts by mass, preferably, not more than 5 parts by mass, and more preferably, not more than 3 parts by mass, relative to 100 parts by mass of the total amount of components (a), (b) and (c).
• component (d) is preferable to use the lower alcohol in an amount not less than 0.1 part by mass.
• the pesticidal/ovicidal composition of the invention may optionally include, as component (e), a vegetable oil other than component (a).
• a vegetable oil other than component (a) examples include sesame oil, safflower oil, soybean oil, corn oil, sunflower oil and cottonseed oil.
• sesame oil, safflower oil, soybean oil, corn oil, sunflower oil and cottonseed oil examples include sesame oil, safflower oil, soybean oil, corn oil, sunflower oil and cottonseed oil.
• safflower oil, soybean oil, corn oil, sunflower oil and cottonseed oil are preferable, and soybean oil and cottonseed oil are more preferable.
• the pesticidal/ovicidal composition of the invention may contain the optional component (e) in an amount not more than 39 parts by mass, preferably, not more than 20 parts by mass, and more preferably, not more than 15 parts by mass, relative to 100 parts by mass of the total amount of components (a), (b) and (c).
• Use of a vegetable oil other than (a) as component (e) increases the adhesiveness of the composition to plants and insect bodies, and allows the composition to be mixed more uniformly. In order to achieve this, it is desirable to use the vegetable oil in an amount not less than 1 part by mass, preferably, about 1-15 parts by mass.
• the pesticidal/ovicidal composition of the present invention is preferably sprayed after dilution with water by preferably 100-fold to 1000-fold, more preferably 200-fold to 500-fold, so as to attain a total concentration of the active ingredients of preferably about 0.1 to 1% by mass, more preferably about 0.2 to 0.5% by mass.
• the pesticidal/ovicidal composition of the invention in such an amount that the total amount of components (a), (b) and (c) is in the range between 0.2 kg/10 a and 8 kg/10 a, more preferably, in the range between 0.5 kg/10 a and 3 kg/10 a.
• the pesticidal/ovicidal composition of the invention can be applied from the initial phase to terminal phase of oviposition, however, the term for application depends on types of vermin pests. Although earlier application provides higher efficiency, the composition of the invention would work when applied even after laid eggs are identified due to its high ovicidal activity.
• the pesticidal/ovicidal composition of the invention has a pesticidal effect on any agricultural vermin pests, and ovicidal effect on eggs thereof.
• Examples of the subject vermin pests include:
• Adjuvant components (b) and (c) for pesticidal/ovicidal composition used in Examples and Comparative Examples below are in the form of a mixture of diglycerol monooleate (Adjuvant (c)) and polyoxyethylene (42 moles of oxyethylene added) castor oil (Adjuvant (b)) at a mass ratio of 3:1.
• Examples of diglycerol monooleate include Rikemal DO-100 (a product from Riken Vitamin Co., Ltd., Japan).
• polyoxyethylene (42 moles of oxyethylene added) castor oil include Solpole CA-42 (Toho Chemical Industry Co., Ltd., Japan).
• Sunflower oil (containing oleic acid in an amount of about 80% by mass) and Adjuvant A were mixed at a mass ratio (hereinafter, the same will be used) of 80:20 to produce Formulation 1.
• Safflower oil (containing oleic acid in an amount of about 80% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Formulation 2.
• Comparative Formulation 1 contained Adjuvant A only.
• Cottonseed oil (containing oleic acid in an amount of about 30% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Comparative Formulation 2.
• Tung oil (containing oleic acid in an amount of about 9% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Comparative Formulation 4.
• Grape seed oil (containing oleic acid in an amount of about 19% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Comparative Formulation 5.
• Sunflower oil (Japanese local variety) (containing oleic acid in an amount of about 35% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Comparative Formulation 6.
• Sunflower oil (medium level oleic acid variety) (containing oleic acid in an amount of about 45% by mass) and Adjuvant A were mixed at a ratio of 80:20 to produce Comparative Formulation 7.
• Formulations 1-3 and Comparative Formulations 1-8 were examined for their hatching inhibitory effects on eggs of Tetranychus urticae Koch.
• Tetranychus urticae Koch were released onto snap bean leaf discs and allowed to oviposit for three days while preventing drying by placing filter papers and a water-filled cup, followed by removal of the imagines to prepare Tetranychus urticae Koch eggs for experimental use.
• Each of the formulations diluted by 300-fold with water was sprayed to the leaf disc using a spray gun. Then, the leaf discs were incubated at 25° C. to culture the eggs After five days, efficiency of hatching inhibition was estimated by counting the number of hatched larvae and unhatched eggs. The results are shown in Table 1.
• Formulations 1 and 2 as well as Comparative Formulations 1-4 and 6-8 were examined for their pesticidal/ovicidal effects on Tetranychus urticae Koch.
• leaf discs for Tetranychus urticae Koch growth were cut out of snap bean leaves, on which Tetranychus urticae Koch had been preliminarily grown, and then left in a snap bean seedling pot for three days to allow Tetranychus urticae Koch to grow, followed by spraying each of the formulations diluted by 300-fold with water using a spray gun. Then, the snap bean pot was placed in a glass green house to grow Tetranychus urticae Koch. Tetranychus urticae Koch were observed daily and the preventive value was calculated based on the number of female imagines of Tetranychus urticae Koch 14 days after spraying.
• Formulations 4-11 used in Examples of the invention were prepared by mixing 85 parts by mass of safflower oil (containing about 80% by mass of oleic acid) and 15 parts by mass of component (b) listed in Table 3. Formulations 4-11 were examined for their pesticidal/ovicidal effects on Tetranychus urticae Koch. In brief, leaf discs for Tetranychus urticae Koch growth were cut out of snap bean leaves, on which Tetranychus urticae Koch had been preliminarily grown, and then left in a snap bean seedling pot for three days to allow Tetranychus urticae Koch to grow. Three days later, each of the formulations diluted with water (300 mg/100 ml) was sprayed using a spray gun.
• the pesticidal/ovicidal composition according to the invention is prepared from food products arid food additives as main materials, it has no stress on human bodies and natural environments and no risk of drug resistance induction, and can be applied to vermin pests which already have acquired resistances to other drugs.
• the composition according to the invention can be used at lower concentrations as compared to conventional methods.
• the composition can provide an increased preventive effect on a variety of crop pests per spray as compared to conventional pesticides.

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• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Plant Pathology (AREA)
• Dentistry (AREA)
• Agronomy & Crop Science (AREA)
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• Natural Medicines & Medicinal Plants (AREA)
• Biotechnology (AREA)
• Microbiology (AREA)
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• Pest Control & Pesticides (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)

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• 2007
  • 2007-04-09 WO PCT/JP2007/057848 patent/WO2007117001A1/fr active Application Filing
  • 2007-04-09 US US12/296,358 patent/US20090286877A1/en not_active Abandoned
  • 2007-04-09 TW TW96112280A patent/TWI414238B/zh active
  • 2007-04-09 JP JP2008509901A patent/JP5181346B2/ja active Active
  • 2007-04-09 EP EP20070741284 patent/EP2036437B1/fr active Active
• 2015
  • 2015-05-07 US US14/706,430 patent/US10130094B2/en active Active

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