JP2023061266A - Pest control agent - Google Patents
Pest control agent Download PDFInfo
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- JP2023061266A JP2023061266A JP2021171162A JP2021171162A JP2023061266A JP 2023061266 A JP2023061266 A JP 2023061266A JP 2021171162 A JP2021171162 A JP 2021171162A JP 2021171162 A JP2021171162 A JP 2021171162A JP 2023061266 A JP2023061266 A JP 2023061266A
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- control agent
- pest control
- slaked lime
- caterpillars
- fine particles
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- 241000607479 Yersinia pestis Species 0.000 title claims abstract description 57
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 37
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 37
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 37
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000010419 fine particle Substances 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 241000237858 Gastropoda Species 0.000 claims description 11
- -1 polypropylene Polymers 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 241001325166 Phacelia congesta Species 0.000 claims 3
- 240000001307 Myosotis scorpioides Species 0.000 description 18
- 241000196324 Embryophyta Species 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- 239000003513 alkali Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 241000238631 Hexapoda Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000002147 killing effect Effects 0.000 description 4
- 239000000575 pesticide Substances 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 2
- 241000255777 Lepidoptera Species 0.000 description 2
- 239000005956 Metaldehyde Substances 0.000 description 2
- 241000255947 Papilionidae Species 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 239000002563 ionic surfactant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- GKKDCARASOJPNG-UHFFFAOYSA-N metaldehyde Chemical compound CC1OC(C)OC(C)OC(C)O1 GKKDCARASOJPNG-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 241000207199 Citrus Species 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
- 241001634830 Geometridae Species 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 241001149911 Isopoda Species 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 241000256259 Noctuidae Species 0.000 description 1
- 241001465805 Nymphalidae Species 0.000 description 1
- 241000255964 Pieridae Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 241000256011 Sphingidae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000005667 attractant Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000031902 chemoattractant activity Effects 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229940094506 lauryl betaine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- 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
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
本発明は、ナメクジ等の害虫を駆除する害虫駆除剤に関する。 The present invention relates to a pest control agent for exterminating pests such as slugs.
近年、農薬を使用しない無農薬栽培の野菜が好まれるようになってきているが、無農薬栽培を行う農園においては、ナメクジ、カタツムリ等の害虫による食害が問題となっている。このような状況下、メタアルデヒド製剤が、ナメクジ、カタツムリ等の害虫に対する誘引性毒餌として使用されている（特許文献１参照）。しかしながら、このメタアルデヒド製剤は、接触しても直接殺すことができず、即効性に欠け、十分に満足のいく効果が得られていない。 In recent years, pesticide-free vegetables grown without the use of pesticides have come to be preferred. Under such circumstances, metaldehyde preparations are used as attractant poison baits for insect pests such as slugs and snails (see Patent Document 1). However, this metaldehyde preparation cannot kill directly even if it comes into contact with it, lacks in immediate effect, and does not provide a fully satisfactory effect.
本発明の課題は、植物への影響が小さく、即効性のある害虫駆除剤を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a pest control agent that has a short effect on plants and has an immediate effect.
本発明者は、上記課題を解決すべく研究する中で、農薬に該当せず、殺菌効果のある消石灰（水酸化カルシウム）に着目した。しかしながら、消石灰は、強アルカリであるため、粉のままの使用では、農薬ほどではないものの、植物への影響が懸念される。 The present inventor focused his attention on slaked lime (calcium hydroxide), which does not fall under agricultural chemicals and has a bactericidal effect, while conducting research to solve the above problems. However, since slaked lime is a strong alkali, there is concern that its use as powder may affect plants, though not as much as agricultural chemicals.
このような状況下、本発明者らは、さらに鋭意研究を進めた結果、微粒子化した消石灰を含む水性スラリーとすることにより、付与後に消石灰の炭酸化（不活性化）が即座に進み、植物へのダメージを抑制することができ、さらに水性スラリーに界面活性剤を含有させることで、濡れ性の向上により植物の葉等で薄く広範囲に広がり、植物へのダメージを抑制することができると共に、害虫への濡れ性や浸透性が高まり、少量の消石灰でも十分な殺傷力を発揮することを見いだし、本発明を完成するに至った。 Under these circumstances, the present inventors have made further intensive studies, and as a result, by making an aqueous slurry containing slaked lime finely divided, carbonation (inactivation) of slaked lime immediately proceeds after application, and plants Furthermore, by including a surfactant in the aqueous slurry, the wettability is improved and spreads thinly over a wide range on the leaves of plants, etc., and damage to the plants can be suppressed. The inventors have found that wettability and permeability to insect pests are increased, and that even a small amount of slaked lime exerts a sufficient killing power, leading to the completion of the present invention.
すなわち、本発明は、以下の通りのものである。
［１］消石灰微粒子と界面活性剤と水とを含有する水性スラリーであって、
前記消石灰微粒子の平均粒子径（Ｄ５０）が０．１～１．０μｍであり、かつ、前記消石灰微粒子の含有割合が８～５０質量％である、害虫駆除剤。
That is, the present invention is as follows.
[1] An aqueous slurry containing slaked lime particles, a surfactant, and water,
A pest control agent, wherein the slaked lime fine particles have an average particle diameter (D50) of 0.1 to 1.0 μm, and the content of the slaked lime fine particles is 8 to 50% by mass.
［２］界面活性剤の含有割合が、２～２０質量％であることを特徴とする上記［１］記載の害虫駆除剤。
［３］ポリプロピレンシートに対する接触角が、５～５０°であることを特徴とする上記［１］又は［２］記載の害虫駆除剤。
［４］スプレー式であることを特徴とする上記［１］～［３］のいずれか記載の害虫駆除剤。
［５］駆除対象の害虫が、ヤマビル、ナメクジ、カタツムリ、毛虫、芋虫及び青虫から選ばれる軟体害虫であることを特徴とする上記［１］～［４］のいずれか記載の害虫駆除剤。
[2] The pest control agent according to [1] above, wherein the content of the surfactant is 2 to 20% by mass.
[3] The pest control agent according to [1] or [2] above, which has a contact angle of 5 to 50° with respect to a polypropylene sheet.
[4] The pest control agent according to any one of [1] to [3], which is a spray type.
[5] The pest control agent according to any one of [1] to [4] above, wherein the pest to be exterminated is a soft-bodied pest selected from wildflowers, slugs, snails, caterpillars, caterpillars and caterpillars.
本発明の害虫駆除剤は、植物への影響が小さく、即効性に優れる。 The pest control agent of the present invention has little effect on plants and is excellent in immediate effect.
本発明の害虫駆除剤は、消石灰微粒子と界面活性剤と水とを含有する水性スラリーであって、消石灰微粒子の平均粒子径（Ｄ５０）が０．１～１．０μｍであり、かつ、消石灰微粒子の含有割合が８～５０質量％である。 The pest control agent of the present invention is an aqueous slurry containing slaked lime fine particles, a surfactant and water, wherein the slaked lime fine particles have an average particle size (D50) of 0.1 to 1.0 μm, and is 8 to 50% by mass.
本発明の害虫駆除剤は、植物等に寄生する害虫に直接付与して害虫を殺傷するものである。本発明の害虫駆除剤は、微粒子化した消石灰を含む水性スラリーであることから、付与後に消石灰の炭酸化（不活性化）が即座に進み、アルカリ焼け等の植物へのダメージを抑制することができる。また、界面活性剤を含有することから、濡れ性の向上により植物の葉等で薄く広範囲に広がり、植物へのダメージを抑制することができ、また、害虫への濡れ性や浸透性が高まり、少量の消石灰でも十分な殺傷力を発揮することができる。 The pest control agent of the present invention is directly applied to pests parasitic on plants and the like to kill pests. Since the pest control agent of the present invention is an aqueous slurry containing finely divided slaked lime, carbonation (inactivation) of slaked lime immediately proceeds after application, and damage to plants such as alkali burn can be suppressed. can. In addition, since it contains a surfactant, it spreads thinly and widely on plant leaves etc. due to the improvement of wettability, and can suppress damage to plants. Even a small amount of slaked lime can exhibit sufficient killing power.
本発明の害虫駆除剤が対象とする害虫としては、本発明の害虫駆除剤の作用により死亡する害虫であれば特に制限されるものではなく、例えば、ヤマビル、ナメクジ、カタツムリ、毛虫、芋虫、青虫等の軟体害虫の他、アリ、ダンゴムシ等を挙げることができる。これらの中でも、ヤマビル、ナメクジ、カタツムリ、毛虫、芋虫、青虫等の軟体害虫が好ましい。 Pests targeted by the pest control agent of the present invention are not particularly limited as long as they are pests that die due to the action of the pest control agent of the present invention. In addition to soft-bodied pests such as , ants, pill bugs, and the like can be mentioned. Among these, molluscum pests such as wild beetles, slugs, snails, caterpillars, caterpillars, and caterpillars are preferred.
毛虫、芋虫、青虫は、チョウ目（ガ目）の幼虫をいい、例えば、アゲハチョウ科、シロチョウ科、シジミチョウ科、タテハチョウ科、セセリチョウ科の蝶の幼虫や、ミノガ科、セミヤドリガ科、イラガ科、マダラガ科、ハマキガ科、メイガ科、カギバガ科、アゲハモドキガ科、ツバメガ科、シャクガ科、カレハガ科、オビガ科、カイコガ科、ヤママユガ科、イボタガ科、スズメガ科、シャチホコガ科、ドクガ科、ヒトリガ科、コブガ科、ヤガ科の蛾の幼虫を挙げることができる。毛虫、芋虫、青虫の区別は厳密ではないが、長い毛で体を覆われているものを毛虫、長い毛で体を覆われていないもののうち、緑色以外のものを芋虫、緑色のものを青虫と分類することができる。 Caterpillars, caterpillars, and caterpillars refer to the larvae of the order Lepidoptera (Moths), for example, larvae of butterflies belonging to the family Papilionidae, Pieridae, Lycaenidae, Nymphalidae, and Heseriidae, as well as the larvae of the family Papiliothidae, the family Spermidae, the family Mothidae, and the spotted moth. Family, Tomitagaceae, Meymothaceae, Kagibagaceae, Papilionidae, Swallowtail family, Geometridae, Kalehagaceae, Obimothaceae, Silkwormaceae, Yamamayugaceae, Platymothaceae, Sphingidae, Shachihokogaaceae, Dokmothaceae, Elephantaceae, Kobuga Moth larvae of the family Noctuidae can be mentioned. The distinction between caterpillars, caterpillars, and caterpillars is not strict, but those covered with long hairs are caterpillars, those that are not covered with long hairs but green are caterpillars, and green ones are caterpillars. can be classified as
本発明の害虫駆除剤における消石灰微粒子の平均粒子径（Ｄ５０）としては、０．１～１．０μｍであり、０．１～０．８μｍが好ましく、０．１～０．５μｍがより好ましい。この範囲の微粒子を用いることにより、消石灰の不活性化が即座に進み、植物へのダメージを抑制することができる。また、本発明の害虫駆除剤は、１．２μｍ以上の消石灰微粒子をできる限り含まないことが好ましく、例えば、１．２μｍ以上の消石灰微粒子が５体積％以下であることが好ましく、３体積％以下であることがより好ましく、１体積％以下であることがさらに好ましい。 The average particle size (D50) of the fine particles of slaked lime in the pest control agent of the present invention is 0.1 to 1.0 μm, preferably 0.1 to 0.8 μm, more preferably 0.1 to 0.5 μm. By using fine particles in this range, deactivation of slaked lime proceeds immediately, and damage to plants can be suppressed. In addition, it is preferable that the pest control agent of the present invention does not contain slaked lime fine particles of 1.2 μm or more as much as possible. More preferably, it is 1% by volume or less.
平均粒子径（Ｄ５０）は、体積基準で求めた粒度分布の全体積を１００％とした累積体積分布曲線において５０％となる点の粒子径、すなわち体積基準累積５０％径を意味する。粒度分布は、レーザー回折／散乱式粒子径分布測定装置（例えば、（株）堀場製作所製ＬＡ－９６０）により求めることができる。 The average particle size (D50) means the particle size at the 50% point in the cumulative volume distribution curve where the total volume of the particle size distribution determined on a volume basis is taken as 100%, that is, the volume-based cumulative 50% diameter. The particle size distribution can be determined by a laser diffraction/scattering particle size distribution analyzer (eg, LA-960 manufactured by Horiba, Ltd.).
本発明の害虫駆除剤における消石灰微粒子の含有割合としては、８～５０質量％であり、１０～４０質量％であることが好ましく、１０～３０質量％であることがより好ましい。この範囲の量の消石灰微粒子を含有することにより、確実に害虫を死亡させることができる。 The content of the slaked lime fine particles in the pest control agent of the present invention is 8 to 50% by mass, preferably 10 to 40% by mass, more preferably 10 to 30% by mass. By containing the amount of slaked lime fine particles within this range, it is possible to surely kill insect pests.
本発明の害虫駆除剤における界面活性剤の含有割合としては、２～２０質量％であることが好ましく、３～１５質量％がより好ましく、３～１０質量％がさらに好ましい。この範囲の量の界面活性剤を含有することにより、葉等で薄く広がって植物へのダメージを抑制できると共に、害虫への濡れ性や浸透性が高まって殺傷効果が向上する。 The content of the surfactant in the pest control agent of the present invention is preferably 2 to 20% by mass, more preferably 3 to 15% by mass, even more preferably 3 to 10% by mass. By containing the surfactant in an amount within this range, it is possible to suppress damage to plants by spreading thinly on leaves and the like, and to increase wettability and permeability to insect pests, thereby improving the killing effect.
界面活性剤としては、イオン性界面活性剤、両性界面活性剤、ノニオン性界面活性剤等、いずれの界面活性剤を用いてもよい。イオン性界面活性剤としては、ドデシルベンゼンスルホン酸ナトリウム、ラウリル硫酸ナトリウム、ポリオキシエチレンアルキルエーテル硫酸ナトリウム等を挙げることができる。両性界面活性剤としては、ラウリルベタイン、ラウリルジメチルアミンオキサイド等を挙げることができる。ノニオン性界面活性剤としては、ポリオキシエチレンアルキルエーテル、ポリエチレングリコール脂肪酸エステル、アセチレングリコール、アセチレンアルコール等を挙げることができる。その他、ヒドロキシメチルセルロース、ヒドロキシエチルセルロース等を用いることもできる。 Any surfactant such as an ionic surfactant, an amphoteric surfactant, and a nonionic surfactant may be used as the surfactant. Examples of ionic surfactants include sodium dodecylbenzenesulfonate, sodium lauryl sulfate, sodium polyoxyethylene alkyl ether sulfate, and the like. Amphoteric surfactants include lauryl betaine, lauryldimethylamine oxide, and the like. Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyethylene glycol fatty acid esters, acetylene glycol, acetylene alcohol, and the like. In addition, hydroxymethyl cellulose, hydroxyethyl cellulose, etc. can also be used.
本発明の害虫駆除剤のポリプロピレンシートに対する接触角としては、５～５０°であることが好ましく、４０°以下が好ましく、３５°以下がより好ましく、３０°以下がさらに好ましい。これにより、植物や害虫に対する十分な濡れ性を担保することができる。 The contact angle of the pest control agent of the present invention with respect to a polypropylene sheet is preferably 5 to 50°, preferably 40° or less, more preferably 35° or less, and even more preferably 30° or less. This ensures sufficient wettability for plants and pests.
なお、本発明における接触角は、ポリプロピレンのシートに対して液滴を滴下して２０秒後の液滴の接触角をいう。測定には、例えば、動的表面張力計ＰＣＡ－１（協和界面化学社製）を用いることができる。 The contact angle in the present invention refers to the contact angle of a droplet 20 seconds after dropping the droplet on a polypropylene sheet. For the measurement, for example, a dynamic surface tensiometer PCA-1 (manufactured by Kyowa Interface Science Co., Ltd.) can be used.
本発明の害虫駆除剤においては、上記成分の他に、他の成分を含有してもよく、例えば、アルコールを含有することが好ましい。アルコールを含有することにより、害虫への浸透性を高めることができる。アルコールとしては、メタノール、エタノール、ｎ－プロピルアルコール、イソププロピルアルコール等を挙げることができ、安全性等の点から、エタノールが好ましい。 In addition to the above components, the pest control agent of the present invention may contain other components, such as alcohol. By containing alcohol, it is possible to increase the permeability to insect pests. Examples of alcohol include methanol, ethanol, n-propyl alcohol, isopropyl alcohol, etc. Ethanol is preferred from the viewpoint of safety and the like.
アルコールの含有割合としては、２～２０質量％であることが好ましく、３～１５質量％がより好ましく、３～１０質量％がさらに好ましい。この範囲の量のアルコールを含有することにより、害虫駆除剤を害虫へ効率よく浸透させることができ、殺傷性を向上させることができる。 The alcohol content is preferably 2 to 20% by mass, more preferably 3 to 15% by mass, and even more preferably 3 to 10% by mass. By containing an amount of alcohol within this range, the pest control agent can efficiently permeate the pests, and the killing property can be improved.
本発明の害虫駆除剤は、スプレー式（噴霧式）、滴下式等として用いることができ、使いやすさの点や過剰な付与を抑制できる等の点から、スプレー式が好ましい。本発明の害虫駆除剤は、微小な消石灰微粒子及び界面活性剤を含み、安定してスラリー状態を保持できることから、スプレー式を好適に用いることができる。 The pest control agent of the present invention can be used as a spray type (spray type), a drip type, or the like, and the spray type is preferable from the viewpoints of ease of use and ability to suppress excessive application. Since the pest control agent of the present invention contains fine slaked lime particles and a surfactant and can stably maintain a slurry state, a spray method can be suitably used.
本発明の害虫駆除剤は、消石灰微粒子と界面活性剤と水とを混合して製造することができる。例えば、特許第４６０６２３８号公報に記載の製造方法により消石灰微粒子分散液を製造し、かかる消石灰微粒子分散液に、適量の界面活性剤と水を添加することにより製造することができる。 The pest control agent of the present invention can be produced by mixing fine particles of slaked lime, a surfactant and water. For example, it can be produced by producing a slaked lime fine particle dispersion by the production method described in Japanese Patent No. 4606238, and adding appropriate amounts of a surfactant and water to the slaked lime fine particle dispersion.
以下に実施例及び比較例を示すが、本発明の技術的範囲はこれに限定されるものではない。 Examples and comparative examples are shown below, but the technical scope of the present invention is not limited to these.
以下の原材料を用いて害虫駆除剤を製造した。
消石灰微粒子として、微粒子消石灰スラリー「カルセッター」（株式会社トクヤマ製）を用いた。平均粒子径（Ｄ５０）は、０．２～０．４μｍであり、１．０μｍ以上の粒子をほぼ含んでいない。なお、比較例３においては、消石灰微粒子に代えて、炭酸カルシウム微粒子を用いた。
界面活性剤として、オルフィンＥ１０１０（日信化学工業株式会社製）を用いた。
アルコールとして、エタノールを用いた。
A pest control agent was manufactured using the following raw materials.
As fine particles of slaked lime, fine particle slaked lime slurry "Calcetter" (manufactured by Tokuyama Corporation) was used. The average particle diameter (D50) is 0.2 to 0.4 μm, and contains almost no particles of 1.0 μm or more. In Comparative Example 3, calcium carbonate fine particles were used in place of the slaked lime fine particles.
Olfine E1010 (manufactured by Nissin Chemical Industry Co., Ltd.) was used as a surfactant.
Ethanol was used as alcohol.
具体的な配合割合は、表１に示す通りである。
また、各害虫駆除剤の接触角の測定結果をあわせて示す。接触角の測定は、動的表面張力計ＰＣＡ－１（協和界面化学社製）を用いて行い、ポリプロピレンのシートに対して液滴を滴下して２０秒後の液滴の接触角を読み取った。
Specific mixing ratios are as shown in Table 1.
The measurement results of the contact angle of each pest control agent are also shown. The contact angle was measured using a dynamic surface tensiometer PCA-1 (manufactured by Kyowa Interface Science Co., Ltd.), and the contact angle of the droplet was read 20 seconds after dropping the droplet on the polypropylene sheet. .
実施例１～６及び比較例１～３の害虫駆除剤を、ナメクジ、キアゲハ幼虫（芋虫）、イラガ幼虫（毛虫）に対して付与（滴下）した。滴下後、害虫が１０分間動かなくなることで害虫の死亡を確認した。
その結果を表２に示す。
The pesticides of Examples 1 to 6 and Comparative Examples 1 to 3 were applied (dripped) to slugs, swallowtail larvae (caterpillars), and moth larvae (caterpillars). After dropping, the death of the pest was confirmed when the pest stopped moving for 10 minutes.
Table 2 shows the results.
表２に示すように、本発明の害虫駆除剤を少量付与することにより、害虫を死亡させることができた。 As shown in Table 2, pests could be killed by applying a small amount of the pesticide of the present invention.
次に、実施例１～６の害虫駆除剤と、下記表３に示す配合の比較例４～７の消石灰スラリー又は粉末消石灰を、トマト、ジャガイモ、ナツミカンの葉に対して付与（散布）した。散布してから５日後に、葉に付着した消石灰を取り除き、葉上にアルカリ焼けが起きている葉の割合（散布した葉の枚数に対するアルカリ焼けを起こした葉の枚数）を確認した。 Next, the pesticides of Examples 1 to 6 and the hydrated lime slurries or powdered hydrated lime of Comparative Examples 4 to 7 having the formulations shown in Table 3 below were applied (sprayed) to the leaves of tomatoes, potatoes, and citrus nuts. Five days after the spraying, the hydrated lime adhering to the leaves was removed, and the percentage of leaves with alkali burn on the leaves (the number of leaves with alkali burn relative to the number of sprayed leaves) was confirmed.
その結果を表４に示す。
なお、葉のアルカリ焼けの評価は、以下の基準で行った。
○：アルカリ焼けを起こした葉が無い、または５％未満
△：アルカリ焼けを起こした葉の枚数が５％以上２５％未満
×：アルカリ焼けを起こした葉の枚数が２５％以上
Table 4 shows the results.
The evaluation of alkali scorching of leaves was performed according to the following criteria.
○: No or less than 5% of leaves with alkali burn △: The number of leaves with alkali burn is 5% or more and less than 25% ×: The number of leaves with alkali burn is 25% or more
表４に示すように、比較例４～７の消石灰スラリー又は粉末消石灰では、葉のアルカリ焼けが生じたが、本発明の実施例１～６の害虫駆除剤では、葉のアルカリ焼けがほとんど生じず、植物への影響はほとんどなかった。 As shown in Table 4, the slaked lime slurries or powdered slaked lime of Comparative Examples 4 to 7 caused alkaline scorching of the leaves, but the pest control agents of Examples 1 to 6 of the present invention almost caused alkaline scorching of the leaves. There was little effect on plants.
本発明の害虫駆除剤は、ナメクジ、毛虫等の害虫の駆除に好適に用いることができることから、産業上有用である。
INDUSTRIAL APPLICABILITY The pest control agent of the present invention is industrially useful because it can be suitably used for exterminating pests such as slugs and caterpillars.
Claims (5)
前記消石灰微粒子の平均粒子径（Ｄ５０）が０．１～１．０μｍであり、かつ、前記消石灰微粒子の含有割合が８～５０質量％である、害虫駆除剤。 An aqueous slurry containing slaked lime particles, a surfactant and water,
A pest control agent, wherein the slaked lime fine particles have an average particle diameter (D50) of 0.1 to 1.0 μm, and the content of the slaked lime fine particles is 8 to 50% by mass.
5. The pest control agent according to any one of claims 1 to 4, wherein the pest to be exterminated is a soft-bodied pest selected from yamabiru, slugs, snails, caterpillars, caterpillars and caterpillars.
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