JP6166638B2 - Termite control agent - Google Patents
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本発明は、シロアリ駆除・防除のためのシロアリ駆除組成物およびシロアリ防除方法に関する。 The present invention relates to a termite control composition and a termite control method for controlling and controlling termites.
現在、主に実用化されているシロアリ駆除法としては、カーバメート系化合物、ピレスロイド系化合物等の殺虫活性成分を含有する製剤をシロアリで被害を受けた箇所やシロアリが家屋に侵入する箇所等に散布する方法およびベンゾイルウレア系化合物等の昆虫成長制御剤を餌に混入してシロアリに摂食させてシロアリ駆除を行うベイト工法が挙げられる。後者のベイト工法では、限定的に薬剤を使用するので環境を汚染しないという長所がある反面、シロアリを駆除するのに２，３か月もかかるという欠点があった。 Currently, the termite control methods that are currently in practical use include spraying formulations containing insecticidal active ingredients such as carbamate compounds and pyrethroid compounds to places where termites are damaged or where termites enter homes. And a bait method in which an insect growth control agent such as a benzoylurea compound is mixed in the bait and fed to termites to control termites. The latter bait method has the advantage that it does not pollute the environment because it uses chemicals on a limited basis, but it has the disadvantage that it takes a few months to remove termites.
近年、殺虫活性成分をシロアリ巣の中枢に効率よく運搬させる方法として、擬似卵運搬によるシロアリ駆除法（以下、本シロアリ駆除法という）が開示されており、本シロアリ駆除法に適用するためのシロアリ駆除組成物が開示されている。これによれば、擬似卵の運搬を阻害しない範囲でピレスロイド化合物、有機リン化合物、カーバメート化合物等の殺虫活性成分を使用できると記載されている。しかしながら、実際に適用できる殺虫活性成分については、具体的にどのような殺虫活性成分が適するのか、またその薬量範囲についても明らかにされていなかった。 In recent years, a termite extermination method (hereinafter referred to as this termite extermination method) using simulated egg transportation has been disclosed as a method for efficiently transporting an insecticidal active ingredient to the center of the termite nest. A disinfecting composition is disclosed. According to this, it is described that an insecticidal active ingredient such as a pyrethroid compound, an organophosphorus compound, and a carbamate compound can be used within a range that does not inhibit the transportation of a pseudo egg. However, as for the insecticidal active ingredient that can be actually applied, it has not been clarified what kind of insecticidal active ingredient is suitable and its dosage range.
そこで、手間と時間のかかるシロアリ巣を用いずに、簡便に本シロアリ駆除法に適する殺虫活性成分を選別することのできる試験方法で見出された殺虫活性成分を、本シロアリ駆除法に用いられる擬似卵の基材に塗布または含有するシロアリ駆除組成物、および当該シロアリ駆除組成物を用いてシロアリを防除する方法を提供することが本発明の課題である。 Therefore, an insecticidal active ingredient found by a test method that can easily select an insecticidal active ingredient suitable for this termite control method without using time-consuming termite nests is used for this termite control method. It is an object of the present invention to provide a termite-controlling composition applied to or contained in a pseudo-egg substrate and a method for controlling termites using the termite-controlling composition.
したがって、本発明は、
（１）直径５ｃｍのろ紙つきシャーレ内に、ヤマトシロアリの卵エキスと殺虫活性成分を塗布した直径０．４〜０．６ｍｍのガラスビーズ２０個およびヤマトシロアリの卵５個をばらばらに配置させて、健康なヤマトシロアリ職蟻１０頭をこのシャーレ内に放虫したとき、放虫２４時間後に、上記のガラスビーズとヤマトシロアリの卵が一緒になった卵塊が形成され、さらに放虫２週間後におけるヤマトシロアリ職蟻の死虫率が８０％以上である殺虫活性成分であり、かつこの殺虫活性成分０．２μｇ含有するメタノール溶液１μＬを、健康なヤマトシロアリ職蟻の口器部分に投与してから、直径５ｃｍのろ紙つきシャーレ内に放虫するとき、放虫後２週後にヤマトシロアリ職蟻の死虫率が１００％になる殺虫活性成分を含有することを特徴とするシロアリ駆除組成物、
（２）上記（１）の殺虫活性成分を疑似卵用の基材に塗布または含有した疑似卵であることを特徴とするシロアリ駆除組成物、
（３）殺虫活性成分が、（ＥＺ）−２’―［２−（４−シアノフェニル）−１−（α，α，α―トリフルオロ−ｍ−トリル）エチリデン］−４−（トリフルオロメトキシ）カルバニロヒドラジド、３−ヨード−Ｎ’−（２−メシル−１，１−ジメチルエチル）−Ｎ−｛４−［１，２，２，２−テトラフルオロ−１−（トリフルオロメチル）エチル］−ｏ−トリル｝フタルアミドまたは５−アミノ−１−［２，６−ジクロロ−４−（トリフルオロメチル）フェニル］−３−シアノ−４−［（トリフルオロメチル）スルフィニル］ピラゾールのいずれか１種類以上であることを特徴とする請求項１または２に記載のシロアリ駆除組成物、
（４）シロアリ職蟻１頭を殺すのに必要な殺虫活性成分量の０．００２〜５００倍量を疑似卵用の基材１粒当たりに塗布または含有することを特徴とする請求項２または３に記載のシロアリ駆除組成物、
（５）上記（１）〜（４）のいずれかに記載のシロアリ駆除組成物を用いて、シロアリを防除するシロアリ防除方法、
を提供するものである。
Therefore, the present invention
(1) In a petri dish with filter paper having a diameter of 5 cm, 20 glass beads having a diameter of 0.4 to 0.6 mm coated with a termite egg extract and an insecticidal active ingredient and 5 eggs of a termite termite are placed apart. When 10 healthy termite termite ants were released into this petri dish, an egg mass containing the above glass beads and Yamato termite eggs was formed after 24 hours of release, and 2 weeks later 1 μL of a methanol solution containing an insecticidal active ingredient having a mortality rate of 80% or more in the ants and 0.2 μg of the insecticidal active ingredient is administered to the mouth part of a healthy ants. From the above, it contains an insecticidal active ingredient that causes the death rate of Yamato termite ants to be 100% two weeks after the release when released into a petri dish with a filter paper having a diameter of 5 cm. Termite control composition,
(2) A termite-controlling composition characterized in that it is a pseudo egg in which the insecticidal active ingredient of (1) is applied or contained in a base material for a pseudo egg,
(3) The insecticidal active ingredient is (EZ) -2 ′-[2- (4-cyanophenyl) -1- (α, α, α-trifluoro-m-tolyl) ethylidene] -4- (trifluoromethoxy ) Carbanillohydrazide, 3-iodo-N ′-(2-mesyl-1,1-dimethylethyl) -N- {4- [1,2,2,2-tetrafluoro-1- (trifluoromethyl) ethyl ] -O-tolyl} phthalamide or 5-amino-1- [2,6-dichloro-4- (trifluoromethyl) phenyl] -3-cyano-4-[(trifluoromethyl) sulfinyl] pyrazole Termite control composition according to claim 1 or 2, characterized in that it is more than one type.
(4) An amount of 0.002 to 500 times the amount of insecticidal active ingredient necessary for killing one termite ant is applied or contained per one base material for pseudo eggs or Termite control composition according to 3,
(5) A termite control method for controlling termites using the termite control composition according to any one of (1) to (4) above,
Is to provide.
本発明によれば、最適な殺虫活性成分を見出すことができ、この見出された殺虫活性成分を擬似卵の基材に塗布または含有するシロアリ駆除組成物を用いることで確実にシロアリを防除できる。 According to the present invention, it is possible to find an optimal insecticidal active ingredient, and it is possible to reliably control termites by using a termite-controlling composition in which the found insecticidal active ingredient is applied to or contained in the base material of a simulated egg. .
本シロアリ駆除法に適する殺虫活性成分は、そのまま擬似卵の基材に塗布または含有させることが困難であるため、シロアリに対し擬似卵の運搬を阻害させない溶剤による希釈剤か、特殊な製剤にすることが望ましい。
そのような溶剤として、例えば、水、Ｎ，Ｎ−ジメチルホルムアミド、エタノール、メタノール、グリセリン等のグリコール系溶剤、シリコーンオイル等のシリコン系溶剤等が挙げられるが、シロアリに対して擬似卵の運搬を阻害させない溶剤であればよい。
The insecticidal active ingredient suitable for this termite control method is difficult to apply or contain as it is on the base material of the simulated egg, so it is a diluent with a solvent that does not inhibit the transport of the simulated egg to the termite or a special formulation It is desirable.
Examples of such a solvent include water, N, N-dimethylformamide, glycol solvents such as ethanol, methanol, and glycerin, and silicone solvents such as silicone oil. Any solvent that does not hinder it may be used.
擬似卵の運搬を阻害させない特殊な製剤としては、乳剤、水性乳剤、活性成分の微粉末や微粒子分を分散剤や増粘剤等で水中に分散させた水性懸濁剤、微粒子や微粉末を溶剤で溶解させて、ウレタン等の高分子樹脂で有効成分を包み込み、その粒子を分散剤、増粘剤等を配合させて水中に分散させるマイクロカプセル製剤等が挙げられる。 Special preparations that do not impede the transportation of mimetic eggs include emulsions, aqueous emulsions, aqueous suspensions in which fine powders and fine particles of active ingredients are dispersed in water with dispersants and thickeners, fine particles and fine powders. Examples include a microcapsule formulation in which an active ingredient is wrapped with a polymer resin such as urethane after being dissolved in a solvent, and the particles are mixed with a dispersant, a thickener, and the like and dispersed in water.
本発明の駆除の対象となるシロアリの種類は、世界中で木材類、紙類、家屋・ビル類、堤防、森林、農作物、配管・ケーブル類等を加害するシロアリ目に属するシロアリ類すべてに適用できる。 The types of termites that are subject to extermination of the present invention apply to all termites belonging to the termites that harm wood, paper, houses / buildings, dikes, forests, agricultural products, piping / cables, etc. it can.
本発明に適用できる具体的な殺虫活性成分としては、例えば（ＥＺ）−２’―［２−（４−シアノフェニル）−１−（α，α，α―トリフルオロ−ｍ−トリル）エチリデン］−４−（トリフルオロメトキシ）カルバニロヒドラジド（一般名メタフルミゾン）、３−ヨード−Ｎ’−（２−メシル−１，１−ジメチルエチル）−Ｎ−｛４−［１，２，２，２−テトラフルオロ−１−（トリフルオロメチル）エチル］−ｏ−トリル｝フタルアミド（一般名フルベンジアミド）、５−アミノ−１−［２，６−ジクロロ−４−（トリフルオロメチル）フェニル］−３−シアノ−４−［（トリフルオロメチル）スルフィニル］ピラゾール（一般名フィプロニル）を挙げることができるが、これら以外の殺虫活性成分についても請求項１の試験を満足する殺虫活性成分であればよい。 Specific examples of the insecticidal active ingredient applicable to the present invention include (EZ) -2 ′-[2- (4-cyanophenyl) -1- (α, α, α-trifluoro-m-tolyl) ethylidene]. -4- (trifluoromethoxy) carbanilohydrazide (generic name metaflumizone), 3-iodo-N ′-(2-mesyl-1,1-dimethylethyl) -N- {4- [1,2,2,2 -Tetrafluoro-1- (trifluoromethyl) ethyl] -o-tolyl} phthalamide (generic name fulvendiamide), 5-amino-1- [2,6-dichloro-4- (trifluoromethyl) phenyl] -3 -Cyano-4-[(trifluoromethyl) sulfinyl] pyrazole (generic name fipronil) can be mentioned, but insecticides other than these also satisfy the test of claim 1 It may be a sexual component.
本シロアリ駆除法に適する殺虫活性成分を擬似卵用の基材に塗布または含有する薬量の範囲としては、疑似卵用の基材１粒当たり、シロアリ職蟻１頭を殺すのに必要な薬量の０．００２〜５００倍、好ましくは０．０２〜５０倍量の範囲であることが好ましい。疑似卵用の基材としては、直径０．２５〜０．６ｍｍの球形粒子を用いることができ、直径０．４〜０．６ｍｍが好ましい。球形粒子は真球状である必要はなく、楕円体であっても良い。材質としては特に限定されないが、ガラス、プラスチック、セラミック等を使用することができ、これらの中でガラス製が好ましく、ガラスビーズが好適に使用できる。疑似卵とは、殺虫活性成分とシロアリの卵エキスを塗布または含有させた粒子である。 The amount of drug that is applied to or contains the insecticidal active ingredient suitable for this termite control method on the base material for the pseudo egg is a medicine necessary for killing one termite ant per one base material for the pseudo egg. The amount is preferably 0.002 to 500 times, preferably 0.02 to 50 times the amount. As the substrate for the pseudo egg, spherical particles having a diameter of 0.25 to 0.6 mm can be used, and a diameter of 0.4 to 0.6 mm is preferable. The spherical particles do not have to be spherical and may be ellipsoids. Although it does not specifically limit as a material, Glass, a plastic, a ceramic, etc. can be used, Glass-made among these is preferable and a glass bead can be used conveniently. The pseudo egg is a particle in which an insecticidal active ingredient and a termite egg extract are applied or contained.
本シロアリ駆除法に適用できるシロアリ駆除剤を用いてシロアリを防除するシロアリ防除方法としては、シロアリの生息場所、シロアリが食害している木材、シロアリの通り道である蟻道の中等に投与することでシロアリを確実に防除することができる。 Termite control methods that use termite control agents applicable to this termite control method include termite habitats, wood damaged by termites, and ant canals that pass through termites. Termites can be reliably controlled.
以下に実地例を示して本発明をさらに具体的かつ詳細に説明するが、実施例はあくまでも例示説明であり、本発明を限定するものではない。 Hereinafter, the present invention will be described more specifically and in detail with reference to practical examples. However, the examples are merely illustrative and do not limit the present invention.
（実施例１）
本願のシロアリ駆除組成物を以下のようにして調製した。
アクセル（登録商標）フロアブル（有効成分メタフルミゾン）２５％含有、日本農薬株式会社製）を水で希釈して、有効成分含量が２５．０、５．０、０．５、０．２５または０．０５重量％となるように調整した水希釈液１ｇを底部直径２ｃｍ高さ２．５ｃｍのビーカー内にある５万個の直径０．４〜０．６ｍｍのガラスビーズに滴下し、充分に攪拌させた。そこに、卵認識フェロモンとして、ヤマトシロアリの卵５個とグリセン１０％含有水溶液１ｇを加えて、さらに充分に攪拌させることにより、擬似卵１粒当たりメタフルミゾン５．０、１．０、０．１、０．０５または０．０１μｇを含有する本シロアリ駆除法に用いられるシロアリ駆除組成物を得た。
Example 1
The termite control composition of the present application was prepared as follows.
Axel (registered trademark) flowable (containing 25% active ingredient metaflumizone), manufactured by Nippon Agricultural Chemicals Co., Ltd., was diluted with water to give an active ingredient content of 25.0, 5.0, 0.5, 0.25, or 0. 1 g of a diluted water solution adjusted to be 05% by weight is dropped on 50,000 glass beads having a diameter of 2 cm and a height of 2.5 cm in a beaker having a height of 2.5 cm and being sufficiently stirred. It was. Then, 5 eggs of Yamato termite and 1 g of an aqueous solution containing 10% glycene were added as egg recognition pheromones, and further sufficiently stirred, so that metaflumizone 5.0, 1.0, 0.1 per 1 simulated egg was added. Termite-controlling composition used in the present termite-controlling method containing 0.05 μg or 0.01 μg.
（実施例２）
アジェンダ（登録商標）ＳＣ（有効成分フィプロニル９．１％含有、バイエルクロップサイエンス株式会社製）を水で希釈して、有効成分含量が０．１５、０．０５または０．０１重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．０３、０．０１または０．００２μｇを含有するシロアリ駆除組成物を得た。
(Example 2)
Agenda (registered trademark) SC (containing 9.1% active ingredient fipronil, manufactured by Bayer CropScience Co., Ltd.) is diluted with water so that the active ingredient content is 0.15, 0.05 or 0.01% by weight. A termite control composition containing 0.03, 0.01 or 0.002 μg of an active ingredient per one simulated egg was obtained in the same manner as in Example 1 using 1 g of the diluted water diluted in the above manner.
（実施例３）
フェニックス（登録商標）顆粒水和剤（有効成分フルベンジアミド２０％含有、日本農薬株式会社製）を水で希釈して、有効成分含量が０．５または０．２５重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．１または０．０５μｇを含有するシロアリ駆除組成物を得た。
(Example 3)
Phoenix (registered trademark) granule wettable powder (containing 20% active ingredient fulvendiamide, manufactured by Nippon Agricultural Chemicals Co., Ltd.) was diluted with water and adjusted so that the active ingredient content was 0.5 or 0.25% by weight. A termite control composition containing 0.1 g or 0.05 μg of the active ingredient per 1 simulated egg was obtained in the same manner as in Example 1 using 1 g of the water dilution.
（比較例１）
プレオ（登録商標）フロアブル（有効成分：ピリダリル１０％含有製剤、住友化学株式会社製）を水で希釈して、有効成分含量が１０、５または１重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分２．０、１．０または０．２μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 1)
1 g of diluted water of Pleo (registered trademark) flowable (active ingredient: preparation containing 10% pyridalyl, manufactured by Sumitomo Chemical Co., Ltd.) diluted with water to have an active ingredient content of 10, 5 or 1% by weight In the same manner as in Example 1, a termite control composition of a comparative example containing 2.0, 1.0, or 0.2 μg of an active ingredient per one simulated egg was obtained.
（比較例２）
ヒドラメチルノン２０重量部、ニューカルゲンＦＳ−２６（竹本油脂株会社製）５重量部、イオン交換水５０重量部を混合し、グレンミルによって１２０分間粉砕した。さらにケルザンＳ（ケルコ社製）０．２５重量部、イオン交換水２４．７５重量部を加えて３０分間攪拌することにより、ヒドラメチルノン２０重量％含有する製剤を得た。この製剤を水で希釈して、有効成分含量が５．０、２．５または０．２５重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分１．０、０．５または０．０５μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 2)
20 parts by weight of hydramethylnon, 5 parts by weight of New Calgen FS-26 (manufactured by Takemoto Yushi Co., Ltd.) and 50 parts by weight of ion-exchanged water were mixed and pulverized for 120 minutes with a Glen mill. Further, 0.25 parts by weight of Kelzan S (manufactured by Kelco) and 24.75 parts by weight of ion-exchanged water were added and stirred for 30 minutes to obtain a preparation containing 20% by weight of hydramethylnon. In the same manner as in Example 1, 1 artificial egg was prepared by diluting 1 g of this diluted product with water to adjust the active ingredient content to 5.0, 2.5 or 0.25% by weight. A comparative termite control composition containing 1.0, 0.5 or 0.05 μg of active ingredient per hit was obtained.
（比較例３）
ステルス（登録商標）ＳＣ（有効成分：クロルフェナピル２１％含有製剤、ＢＡＳＦジャパン株式会社製）を水で希釈して、有効成分含量が１．０、０．５または０．１重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．２、０．１または０．０２μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 3)
Stealth (registered trademark) SC (active ingredient: preparation containing 21% chlorfenapyr, manufactured by BASF Japan Ltd.) is diluted with water so that the active ingredient content is 1.0, 0.5 or 0.1% by weight. In the same manner as in Example 1, 1 g of the prepared diluted water solution was used to obtain a termite control composition of a comparative example containing 0.2, 0.1, or 0.02 μg of an active ingredient per one simulated egg.
（比較例４）
ミケブロック（登録商標）（有効成分ジノテフラン２０％含有、三井化学アグロ株式会社製）を水で希釈して、有効成分含量が０．１、０．０５、０．０１重量％となるように調整した水希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．０２、０．０１または０．００２μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 4)
Mike Block (registered trademark) (containing 20% active ingredient dinotefuran, manufactured by Mitsui Chemicals Agro Co., Ltd.) is diluted with water and adjusted so that the active ingredient content is 0.1, 0.05, 0.01% by weight. In the same manner as in Example 1, 1 g of the diluted aqueous solution was used to obtain a termite control composition of a comparative example containing 0.02, 0.01 or 0.002 μg of an active ingredient per one simulated egg.
（比較例５）
アペリオン（登録商標）「ＥＳ」（有効成分インドキサカルブ１４．５％含有、住化エンビロサイエンス株式会社製）を水で希釈して、有効成分含量が０．１、０．０５または０．０１重量％となるように調整した希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．０２、０．０１または０．００２μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 5)
Aperion (registered trademark) “ES” (containing 14.5% of active ingredient indoxacarb, manufactured by Sumika Enviro Science Co., Ltd.) was diluted with water to have an active ingredient content of 0.1, 0.05 or 0.005. A termite control composition of a comparative example containing 1 g of a diluted solution adjusted to be 01% by weight, in the same manner as in Example 1, containing 0.02, 0.01 or 0.002 μg of an active ingredient per one pseudo egg. Got.
（比較例６）
サイゴー乳剤「ＥＳ」（有効成分ペルメトリン１０．０％含有、住化エンビロサイエンス株式会社製）を水で希釈して、有効成分含量が０．１、０．０５または０．０１重量％となるように調整した希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．０２、０．０１または０．００２μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 6)
Saigo emulsion “ES” (containing 10.0% active ingredient permethrin, manufactured by Sumika Enviro Science Co., Ltd.) is diluted with water to give an active ingredient content of 0.1, 0.05 or 0.01% by weight. In the same manner as in Example 1, 1 g of the diluted solution thus prepared was used to obtain a termite control composition of a comparative example containing 0.02, 0.01 or 0.002 μg of an active ingredient per one simulated egg.
（比較例７）
スミチオン（登録商標）１０ＦＬ「ＥＳ」（有効成分フェニトロチオン１０．０％含有、住化エンビロサイエンス株式会社製）を水で希釈して、有効成分含量が０．５、０．２５または０．０５重量％となるように調整した希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．１、０．０５または０．０１μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 7)
Sumithion (registered trademark) 10FL “ES” (containing 10.0% active ingredient fenitrothion, manufactured by Sumika Enviro Science Co., Ltd.) is diluted with water to have an active ingredient content of 0.5, 0.25 or 0.05. A termite control composition of a comparative example containing 1 g of a diluted solution adjusted to be% by weight in the same manner as in Example 1 and containing 0.1, 0.05, or 0.01 μg of active ingredient per grain of simulated egg. Obtained.
（比較例８）
バクトップ（登録商標）ＭＣ「ＥＳ」（有効成分フェノブカルブ１５．０％含有、住化エンビロサイエンス株式会社製）を水で希釈して、有効成分含量が０．５、０．２５または０．０５重量％となるように調整した希釈液１ｇを、実施例１と同じようにして擬似卵１粒当たり有効成分０．１、０．０５または０．０１μｇを含有する比較例のシロアリ駆除組成物を得た。
(Comparative Example 8)
Bakutop (registered trademark) MC “ES” (containing 15.0% active ingredient Fenobucarb, manufactured by Sumika Enviro Science Co., Ltd.) is diluted with water to have an active ingredient content of 0.5, 0.25 or 0.005. A termite-controlling composition of a comparative example containing 1 g of a diluted solution adjusted to be 05% by weight, in the same manner as in Example 1, containing 0.1, 0.05 or 0.01 μg of active ingredient per grain of simulated egg. Got.
（試験例１）
水を適量含ませた直径５ｃｍの濾紙付シャーレ（ＡＤＶＡＮＴＥＣ ＰＤ−４７Ｂ、東洋濾紙株式会社製）に、実施例１〜３および比較例１〜８のシロアリ駆除剤２０個をばらばらに配置し、さらにヤマトシロアリの卵５個を同様にばらばらに配置し、ヤマトシロアリ職蟻１０頭を放虫して、２４時間後における卵塊形成の有無、ヤマトシロアリ職蟻のノックダウン率および２週間後の死虫率を求めた。反復は４回とした。判定方法は以下の通りである。２４時間後の卵塊形成が有であり、かつ２週間後に８０％以上の死虫率を満たす場合に判定結果の欄に丸印をつけ、満たさない場合は×印をつけた。
（１）２４時間後の卵塊形成の有無
供試虫を放虫してから２４時間後に擬似卵が運搬されて一カ所に塊として形成された場合に「有」、擬似卵が運搬されずに塊が見られない場合に「無」と表記した。
（２）２週間後の死虫率
供試虫を放虫してから２週間後の死虫率を、以下の式で求めた。
死虫率（％）＝（２週間目の時点で死亡しているヤマトシロアリ職蟻の数）÷（最初に供試したヤマトシロアリ職蟻の数）× １００
結果を表１に示す。
(Test Example 1)
In a petri dish with a filter paper having a diameter of 5 cm containing an appropriate amount of water (ADVANTEC PD-47B, manufactured by Toyo Roshi Kaisha Co., Ltd.), 20 termite disinfectants of Examples 1 to 3 and Comparative Examples 1 to 8 were separately arranged. Similarly, 5 Yamato termite eggs are scattered apart, and 10 Yamato termite ants are released. After 24 hours, the presence of egg masses, the knock-down rate of the ants, and the dead insects after 2 weeks. The rate was determined. There were 4 repetitions. The determination method is as follows. When the egg lump formation was observed after 24 hours and the death rate of 80% or more was satisfied after 2 weeks, a circle was placed in the judgment result column, and when it was not satisfied, a cross was marked.
(1) Presence / absence of egg mass formation after 24 hours “Yes” when the pseudo egg is transported and formed as a lump in one place 24 hours after the test insect is released, without the pseudo egg being transported When a lump was not seen, it was described as “nothing”.
(2) Mortality after 2 weeks The mortality after 2 weeks from the release of the test insect was determined by the following formula.
Mortality rate (%) = (Number of Yamato termite ants dying at the second week) ÷ (Number of Yamato termite ants first tested) x 100
The results are shown in Table 1.
（試験例２）
実施例１〜３および比較例１、２に記載の製剤を所定濃度となるようにメタノールで希釈した希釈液１μＬをヤマトシロアリ職蟻の口器部分に塗布して、水を適量含ませた直径５ｃｍの濾紙付シャーレ（ＡＤＶＡＮＴＥＣ（登録商標）ＰＤ−４７Ｂ、東洋濾紙株式会社製）内に放虫して蓋をして、室温で２週間放置した。その後死虫率を求め、１００％の致死率を示す最少薬量を求めた。反復は２０回とした。試験結果を表２の試験例（２）のＡ欄に示した。
(Test Example 2)
A diameter of 1 μL of a diluted solution obtained by diluting the preparations described in Examples 1 to 3 and Comparative Examples 1 and 2 with methanol to a predetermined concentration on the mouth part of a termite ant, and containing an appropriate amount of water Insects were placed in a 5 cm petri dish with filter paper (ADVANTEC (registered trademark) PD-47B, manufactured by Toyo Filter Paper Co., Ltd.), covered, and left at room temperature for 2 weeks. Thereafter, the mortality was determined, and the minimum dose showing 100% mortality was determined. There were 20 repetitions. The test results are shown in column A of Test Example (2) in Table 2.
（試験例３）
スプルース等の木粉を餌とし、角型ケース（２２１×１４１×３７ｍｍ）内に、ヤマトシロアリ約４００個体を放虫して１ヵ月以上室温に放置させて人工巣を構築させた。次に、実施例１〜３および比較例１〜８のシロアリ駆除剤約５０００個を上述の人工巣内の蟻道付近に配置させた。これらのシロアリ駆除剤の薬量設定については次の通りとした。候補殺虫活性成分については試験例１の判定結果が丸印の薬量とし、比較例３〜８については試験例１で卵塊形成が認められた薬量とし、これらの結果を表２の試験例（３）のＢ欄に示した。判定方法については、放虫２週間後における人工巣内のヤマトシロアリの死虫率が６０％以上の場合、その巣が正常に機能しないことから、巣駆除が成功したものと判定した。試験結果を表２の試験例（３）の巣駆除の欄に示した。また、Ａ欄とＢ欄の薬量の比率を、表２のＢ／Ａの比率（倍）の欄に示し、擬似卵用の基材に塗布・含有させる殺虫活性成分の薬量が、ヤマトシロアリ１頭を致死させる最小薬量の何倍程度であるかを示した。
(Test Example 3)
Using spruce and other wood flour as a bait, about 400 Yamato termites were released in a rectangular case (221 × 141 × 37 mm) and allowed to stand at room temperature for one month or longer to construct an artificial nest. Next, about 5000 termite control agents of Examples 1 to 3 and Comparative Examples 1 to 8 were placed in the vicinity of the ant canal in the artificial nest. The dose settings for these termite control agents were as follows. For the candidate insecticidal active ingredient, the determination result of Test Example 1 is the dose indicated by a circle, and for Comparative Examples 3 to 8, the dose at which egg mass formation was observed in Test Example 1 was set. Shown in column B of (3). As for the determination method, it was determined that the nest removal was successful because the nest did not function normally when the dead rate of the termites in the artificial nest was 60% or more after 2 weeks of insect release. The test results are shown in the nest extermination column of Test Example (3) in Table 2. In addition, the ratio of the dosages in columns A and B is shown in the column of B / A ratio (times) in Table 2, and the dosage of the insecticidal active ingredient to be applied to and contained in the substrate for the pseudo egg is Yamato. It shows how many times the minimum dose that kills one termite.
本発明によるシロアリ駆除組成物を用いることにより、シロアリによる被害を効率的に防止することができる。 By using the termite control composition according to the present invention, it is possible to efficiently prevent damage caused by termites.
Claims (3)
The termite control method of controlling a termite using the termite control composition of Claim 1 or 2 .
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| JP5289324B2 (en) * | 2006-12-21 | 2013-09-11 | ダウ アグロサイエンシィズ エルエルシー | Composite material comprising thermoplastic polymer, pest food material, and pesticide |
| JP4126379B1 (en) * | 2007-02-15 | 2008-07-30 | 国立大学法人 岡山大学 | Pest control using lysozyme, its salts, biological fragments or related peptides as egg recognition pheromones |
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