JP5720137B2 - Harmful arthropod control composition and harmful arthropod control method - Google Patents

Description

  The present invention relates to a harmful arthropod control composition and a method for controlling harmful arthropods.

  Conventionally, many compounds are known as an active ingredient of the harmful arthropod control composition (for example, refer nonpatent literature 1).

The Pesticide Manual-15th edition (BCPC); ISBN 978-1-901396-18-8

  An object of the present invention is to provide a harmful arthropod control composition having an excellent control effect on harmful arthropods.

As a result of studying to find a harmful arthropod control composition having an excellent control effect on harmful arthropods, the present inventors have found that spirotetramat and one or more types of crests selected from the following group (A) The present inventors have found that a composition containing a disease control compound exhibits a synergistic effect and has an excellent control effect on harmful arthropods, and has reached the present invention.
That is, the present invention includes the following [1] to [5].
[1] A harmful arthropod control composition comprising spirotetramat and one or more blight control compounds selected from the group (A).
Group (A): Group consisting of flutolanil, pencyclon, furametopir and validamycin A.
[2] The harmful arthropod control composition according to [1], wherein the weight ratio of spirotetramat to the blight control compound is 10: 1 to 1: 100.
[3] A method for controlling harmful arthropods, comprising a step of applying an effective amount of spirotetramat and one or more blight control compounds selected from the group (A) to a plant or a plant cultivation site.
Group (A): Group consisting of flutolanil, pencyclon, furametopir and validamycin A.
[4] The control method according to [3], wherein the weight ratio of spirotetramat to the blight control compound is 10: 1 to 1: 100.
[5] The control method according to [3] or [4], wherein the harmful arthropod is a brown planthopper, a white-tailed planthopper, or a brown planthopper.

  According to the present invention, harmful arthropods can be controlled.

The harmful arthropod control composition of the present invention may be referred to as spirotetramat and one or more blight control compounds selected from the following group (A) (hereinafter referred to as the main blight control compound). ).
Group (A): Group consisting of flutolanil, pencyclon, furametopir and validamycin A.
Spirotetramat used in the present invention is a known compound and can be produced, for example, by the method described in JP-T-2000-516918.
Further, flutolanil, pencyclon, flametopir and validamycin used in the present invention are all known compounds, for example, “The Pesticide Manual-15th edition (published by BCPC); ISBN 978-1-901396-18-8”, 559, 871, 580 and 1187 pages. These compounds can be obtained from commercially available preparations or produced by known methods.

  The content ratio of spirotetramat and this blight control compound in the harmful arthropod control composition of the present invention is not particularly limited. The control compound is usually 10 to 1000000 parts by weight, preferably 100 to 100000 parts by weight.

The harmful arthropod control composition of the present invention may be a simple mixture of spirotetramat and the main blight control compound, but usually a spirotetramat and main blight control compound and an inert carrier are used. Those that are formulated into oils, emulsions, flowables, wettable powders, granular wettable powders, powders, granules, etc. by adding surfactants and other formulation adjuvants as necessary Used.
Moreover, the above-mentioned formulated harmful arthropod control composition can be used as a harmful arthropod control agent as it is or by adding other inactive ingredients.
In the harmful arthropod control composition of the present invention, the total amount of spirotetramat and this blight control compound is usually 0.01 to 99% by weight, preferably 0.1 to 90% by weight, more preferably. Is in the range of 0.5 to 70% by weight.

Examples of solid carriers used in formulation include kaolin clay, attapulgite clay, bentonite, montmorillonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, corn cob flour, walnut shell powder, etc. Natural organic materials, synthetic organic materials such as urea, salts such as calcium carbonate and ammonium sulfate, fine powders or granular materials made of synthetic inorganic materials such as synthetic silicon hydroxide, etc., and liquid carriers include, for example, xylene, alkylbenzene, methyl Aromatic hydrocarbons such as naphthalene, alcohols such as 2-propanol, ethylene glycol, propylene glycol and ethylene glycol monoethyl ether, ketones such as acetone, cyclohexanone and isophorone, vegetable oils such as soybean oil and cottonseed oil, petroleum fats Group hydrocarbon , Esters, dimethyl sulfoxide, acetonitrile and water.
Examples of surfactants include anionic interfaces such as alkyl sulfate esters, alkylaryl sulfonates, dialkyl sulfosuccinates, polyoxyethylene alkylaryl ether phosphate esters, lignin sulfonates, naphthalene sulfonate formaldehyde polycondensates, and the like. Nonionic surfactants such as activators and polyoxyethylene alkyl aryl ethers, polyoxyethylene alkyl polyoxypropylene block copolymers, sorbitan fatty acid esters, and cationic surfactants such as alkyltrimethylammonium salts.
Examples of other adjuvants for preparation include water-soluble polymers such as polyvinyl alcohol and polyvinyl pyrrolidone, gum arabic, alginic acid and salts thereof, polysaccharides such as CMC (carboxymethyl cellulose) and xanthan gum, aluminum magnesium silicate, alumina sol Inorganic substances such as preservatives, colorants and stabilizers such as PAP (isopropyl acid phosphate) and BHT.

  The harmful arthropod control composition of the present invention may be used for protecting plants from harm by harmful arthropods (for example, harmful insects and harmful mites) that cause damage to plants such as feeding and sucking. it can.

  Examples of the harmful arthropods having the controlling effect of the harmful arthropod control composition of the present invention include the following.

Hemiptera: small brown planthopper (Laodelphax striatellus), brown planthopper (Nilaparvata lugens), Sejirounka (Sogatella furcifera) planthoppers such as, green rice leafhopper (Nephotettix cincticeps), Taiwan green rice leafhopper (Nephotettix virescens) leafhoppers such as, cotton aphid (Aphis gossypii) , Peaches aphids (Myzus persicae), radish aphids (Brevicoryne brassicae), tulip beetles Buramushi (Rhopalosiphum padi), aphids such as tangerine black aphid (Toxoptera citricidus), greenhouse whitefly (Trialeurodes vaporariorum), sweetpotato whitefly (Bemisia tabaci), whiteflies such as silverleaf whitefly (Bemisia argentifolii), Acamar scale insects (Aonidiella aurantii), Scale insects such as Santos scale insects (Comstockcaspis perniciosa), Citrus snow scale (Unaspis citri), Ruby beetles (Ceroplastes rubens), Icerya purchasi etc .;
Mite order pests: spider mites (Tetranychus urticae), citrus mite (Pananychus citri), spider mites such as Oligonicus genus, etc .;

  Among the harmful arthropods, preferable examples include planthoppers such as Japanese planthopper (Laodelfax striatellus), green planthopper (Nilaparvatta lugens), and white-tailed planthopper (Sogellaella furcifera).

  The harmful arthropod control composition of the present invention may be used for the purpose of controlling plant diseases. For example, it can control rice blight (Rhizotonia solani).

  The harmful arthropod control composition of the present invention is used to control harmful arthropods by being applied to plants or plant cultivation areas. Examples of plants include plant foliage, plant flowers, plant nuts, plant seeds, and the like.

  The method for controlling harmful arthropods of the present invention is carried out by treating the composition for controlling harmful arthropods of the present invention. Specifically, for example, treatment of plant foliage such as foliage spraying, soil treatment The processing to the cultivation place of plants, etc. are mentioned.

When the harmful arthropod composition of the present invention is treated in a plant or a plant cultivation area, the amount of treatment is the type of plant to be treated, the type and occurrence of harmful arthropods to be controlled, the formulation form, Although it can be changed depending on the treatment time, weather conditions, etc., the total amount of spirotetramat and the main blight control compound is usually 1 to 5000 g, preferably 10 to 500 g, per 10,000 m ² where the plant is cultivated.
Emulsions, wettable powders, flowables and the like are usually treated by diluting with water and spraying. In this case, the total concentration of spirotetramat and the main blight control compound is usually 0.0001 to 3% by weight, preferably 0.0005 to 1% by weight. Powders, granules, etc. are usually processed without dilution.

The method for controlling harmful arthropods of the present invention can be used in farmland such as fields, paddy fields, lawns, orchards, or non-farm fields.
Further, the present invention can be used for controlling harmful arthropods in the cultivated land in the cultivated land etc. where the “plants” listed below are cultivated.
Agricultural crops: corn, rice, wheat, barley, rye, oat, sorghum, cotton, soybean, pea, green beans, groundnut, buckwheat, sugar beet, rapeseed, sunflower, sugarcane, tobacco, etc.
Vegetables: Eggplant vegetables (eggplant, tomatoes, peppers, peppers, potatoes, etc.), cucurbits vegetables (cucumbers, pumpkins, zucchini, watermelon, melon, squash, etc.), cruciferous vegetables (radish, turnip, horseradish, kohlrabi, Chinese cabbage) , Cabbage, mustard, broccoli, cauliflower, etc.), asteraceae vegetables (burdock, garlic, artichoke, lettuce, etc.), liliaceae vegetables (leek, onion, garlic, asparagus), celery family vegetables (carrot, parsley, celery, USA) Bowfish, etc.), red crustacean vegetables (spinach, chard, etc.), perilla vegetables (perilla, mint, basil, etc.), strawberries, sweet potatoes, yam, taros, etc.
Bridegroom (rose, chrysanthemum, etc.),
Foliage plant,
Shiva,
Fruit trees; pears (apples, pears, Japanese pears, quince, quince, etc.), nuclear fruits (peaches, plums, nectarines, ume, sweet cherry, apricots, prunes, etc.), citrus (satsuma mandarin, orange, lemon, lime, grapefruit) ), Nuts (chestnut, walnut, hazel, almond, pistachio, cashew nut, macadamia nut, etc.), berries (blueberry, cranberry, blackberry, raspberry, etc.), grape, oyster, olive, loquat, banana, coffee, Date palm, coconut palm, etc.
Trees other than fruit trees: Cha, mulberry, flowering trees, street trees (ash, birch, dogwood, eucalyptus, ginkgo, lilac, maple, oak, poplar, redwood, fu, sycamore, zelkova, black bean, peach tree, Tsuga, rat, pine, Spruce, yew) etc.

  Among the plants, corn, wheat, rice and the like can be mentioned as preferable examples.

  The “plant” may be a plant imparted with resistance by a genetic recombination technique or a breeding method by crossing.

  Hereinafter, the present invention will be described in more detail with formulation examples, application examples, and test examples, but the present invention is not limited to the following examples. In the following examples, parts represent parts by weight unless otherwise specified.

Formulation Example 1
Add 10 parts of spirotetramat and 10 parts of flutolanil into a mixture of 4 parts of sodium lauryl sulfate, 2 parts of calcium lignin sulfonate, 20 parts of synthetic silicon hydroxide fine powder and 54 parts of diatomaceous earth, and hydrate by mixing well. Get the agent.

Formulation Example 2
Add 10 parts spirotetramat and 10 parts pencyclon to a mixture of 4 parts sodium lauryl sulfate, 2 parts calcium lignin sulfonate, 20 parts synthetic silicon hydroxide fine powder and 54 parts diatomaceous earth and mix well to hydrate Get the agent.

Formulation Example 3
Add 10 parts of spirotetramat and 10 parts of flametopyr into a mixture of 4 parts of sodium lauryl sulfate, 2 parts of calcium lignin sulfonate, 20 parts of synthetic hydrous silicon oxide fine powder and 54 parts of diatomaceous earth and mix well to hydrate. Get the agent.

Formulation Example 4
Add 10 parts spirotetramat and 10 parts validamycin A to a mixture of 4 parts sodium lauryl sulfate, 2 parts calcium lignin sulfonate, 20 parts synthetic silicon hydrous fine powder and 54 parts diatomaceous earth and mix well to hydrate Get the agent.

Formulation Example 5
A powder is obtained by thoroughly pulverizing and mixing 2 parts of spirotetramat, 1 part of flutolanil, 87 parts of kaolin clay and 10 parts of talc.

Formulation Example 6
A powder is obtained by thoroughly pulverizing and mixing 2 parts of spirotetramat, 1 part of pencyclon, 87 parts of kaolin clay and 10 parts of talc.

Formulation Example 7
A powder is obtained by thoroughly pulverizing and mixing 2 parts of spirotetramat, 1 part of flametopir, 87 parts of kaolin clay and 10 parts of talc.

Formulation Example 8
A powder is obtained by thoroughly pulverizing and mixing 4 parts of spirotetramat, 1 part of validamycin A, 85 parts of kaolin clay and 10 parts of talc.

Formulation Example 9
A flowable agent is obtained by mixing 5 parts of spirotetramat, 10 parts of flutolanil, 30 parts of white carbon containing 50 parts of polyoxyethylene alkyl ether sulfate ammonium salt and 55 parts of water and finely pulverizing them by a wet pulverization method.

Production Example 10
A flowable agent is obtained by mixing 5 parts of spirotetramat, 10 parts of pencyclone, 30 parts of white carbon containing 50 parts of polyoxyethylene alkyl ether sulfate ammonium salt and 55 parts of water and finely pulverizing them by a wet pulverization method.

Production Example 11
A flowable agent is obtained by mixing 5 parts of spirotetramat, 10 parts of furametopyr, 30 parts of white carbon containing 50 parts of polyoxyethylene alkyl ether sulfate ammonium salt and 55 parts of water and finely pulverizing them by a wet pulverization method.

Production Example 12
A flowable agent is obtained by mixing 5 parts of spirotetramat, 10 parts of validamycin A, 30 parts of white carbon containing 50 parts of polyoxyethylene alkyl ether sulfate ammonium salt and 55 parts of water and finely pulverizing them by a wet pulverization method.

  Next, the effect of the present invention will be shown by test examples.

Test Example 1 (Insecticidal activity test against brown planthopper)
After dissolving 10 mg of spirotetramat active substance, flutolanil active substance, pencyclon active ingredient, and furametopir active substance in 1 ml of acetone (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) and a predetermined concentration, respectively. It was diluted with water containing 0.02% by volume of a spreading agent (trade name: Dyne (registered trademark), manufactured by Sumika Takeda Horticulture). A test drug solution was prepared by mixing a water-diluted solution of spirotetramat with a water-diluted solution of flutolanil, pencyclon, or furametopir.
2.5 ml of paper pot planted rice (Oryza sativa, variety: Hoshino Yume) seedlings were sprayed with 20 ml of the test chemical solution per two strains. The rice seedlings were air-dried and placed in a glass test tube (diameter 30 mm, height 200 mm) containing 4.8 ml of water. Ten third-instar larvae of the brown planthopper were released into the test tube and placed indoors (25 ° C., humidity 60%). The life and death of the larvae tested 6 days later were observed. From the observation results, the mortality rate was calculated by Equation 1) and the corrected mortality rate was calculated by Equation 2). The test was repeated twice. The average value is shown in Table 1.

  Formula 1); death rate (%) = number of treated area dead insects / number of test insects × 100

  Formula 2); corrected mortality rate (%) = {(treatment area mortality rate−untreated area mortality ratio) / (100−untreated area mortality ratio)} × 100

Claims (5)

A harmful arthropod control composition containing spirotetramat and one or more blight control compounds selected from the group (A).
Group (A): flutolanil, pencycuron and Furametopi Le or Ranaru group.   The harmful arthropod control composition according to claim 1, wherein the weight ratio of the spirotetramat to the blight control compound is 10: 1 to 1: 100. A method for controlling harmful arthropods, comprising a step of applying an effective amount of spirotetramat and one or more blight control compounds selected from the group (A) to a plant or a planting site of the plant.
Group (A): flutolanil, pencycuron and Furametopi Le or Ranaru group.

  The method of controlling a pest according to claim 3, wherein the weight ratio of spirotetramat and the blight control compound is 10: 1 to 1: 100.   The control method according to claim 3 or 4, wherein the harmful arthropod is a brown planthopper, white-spotted planthopper or a common planthopper.