JP4346284B2 - Gastropod attractant and attractant / insecticide - Google Patents

Description

【００２５】
３角フラスコ部に体長２〜３cmのチャコウラナメクジ２〜３匹を入れ、のべ９〜１０匹となるように試験を同時に行なった。
評価は、１２時間後（夜から朝）に行なった。その時点でナメクジは、三角フラスコ内、試験化合物含浸のろ紙のある先端部、ろ紙のない先端部、分岐部のいずれかの場所におり、試験化合物含浸のろ紙のある先端部にいたナメクジ数ののべ数をカウントした。比較例としてメタアルデヒド６％剤として市販誘引・殺虫剤ナメトックス（タケダ園芸製）を０．０３ｇ使用した。また比較例として、エタノール、バニリンについても実施した。
【００２６】
その結果、表１に示すように、炭素数が本発明の範囲内にあるアルデヒド、脂肪酸、エステル、アルコール、フェニル酢酸及びパラアセトアルデヒドは、市販の誘引・殺虫剤であるメタアルデヒドに比べて、低濃度で顕著な誘引効果を示した。
【００２７】
【表１】

【００２８】
実施例２〜３
以下に示す誘引・殺虫剤を調製し、市販誘引・殺虫剤であるメタアルデヒド６％剤との比較試験を行なった。
【００２９】
［試験ベイト剤の調製法］グルテン２０重量部（以下、単に部で示す）、コーンスターチ５０部、クレー２５．５部、試験誘引化合物０．５部、殺虫成分３，５−キシリル Ｎ−メチルカーバメート（ＸＭＣ）４部を混合し造粒機にて約１cmのペレット状に成形し試験誘引・殺虫剤とした。また、メタアルデヒド剤６％はＮＡＣ剤（タケダ園芸製）を使用した。
【００３０】
実施例２（チャコウラナメクジ）
イネ育苗箱（６０cm×３０cm）を２つ重ねにして試験容器とし、試験容器内両端に５cmシャーレを伏せて試験剤設置場所とした。片側に試験誘引・殺虫剤１ｇ、反対側にメタアルデヒド剤６％剤１ｇを設置し、中央にチャコウナメクジ１０匹を放置し、誘引性の比較試験を行なった。評価は３時間後に行なった。
【００３１】
Ａ：９割以上が試験誘引・殺虫剤に集合。
Ｂ：５割以上が試験誘引・殺虫剤に集合。
Ｃ：メタアルデヒド剤に５割以上集合。
【００３２】
その結果、表２に示すように本発明の誘引・殺虫剤は市販の誘引・殺虫剤であるメタアルデヒド剤に比べて誘引効果が顕著に優れていた。
【００３３】
【表２】

【００３４】
実施例３（ウスカワマイマイ）
イネ育苗箱を２つ重ねにして試験容器とし、試験容器内両端に５cmシャーレを伏せて試験剤設置場所とした。試験誘引・殺虫剤は誘引化合物０．０５部とした以外は同配合とした。片側に試験誘引・殺虫剤１ｇ、反対側にメタアルデヒド剤６％剤１ｇを設置し、中央にウスカワマイマイ１０匹を放置し、誘引性の比較試験を行なった。評価は３時間後に行なった。
【００３５】
Ａ：９割以上が試験誘引・殺虫剤に集合。
Ｂ：５割以上が試験誘引・殺虫剤に集合。
Ｃ：メタアルデヒド剤に５割以上集合。
【００３６】
その結果、表３に示すように本発明の誘引・殺虫剤は市販の誘引・殺虫剤であるメタアルデヒド剤に比べて誘引効果が顕著に優れていた。
【００３７】
【表３】

【００３８】
実施例４（スクミリンゴガイ）
１．４ｍのＰＰ樹脂製の誘引評価装置を作成し、一方より水を滴下させ、滴下側に試験誘引・殺虫剤１ｇをネットに入れてセットする。逆側よりスクミリンゴガイ（殻径２cm以上）を１０頭放置し、誘引化合物０．５部配合の誘引・殺虫剤への接近状況を１日後に調べた。評価基準は以下の通り。
【００３９】
◎：６０％以上試験誘引・殺虫剤に誘引。
○：３０％以上試験誘引・殺虫剤に誘引。
×：誘引性認められず。
【００４０】
その結果、表４に示すように本発明の誘引・殺虫剤はスクミリンゴ貝に対して優れた誘引効果を示した。
【００４１】
【表４】

【００４２】
なお、実施例２〜４において、誘引された腹足類はすべて死亡していた。
【００４３】
【発明の効果】
本発明の誘引・殺虫剤を用いれば、従来の誘引・殺虫剤メタアルデヒドに比べて優れた誘引効果を持つことから、より効果的な防除をする事ができる。誘引効果が高いので、環境中に放出する殺虫成分を低減させることができる。また本発明によって、水棲腹足類に対する誘引剤および誘引・殺虫剤の提供も可能になった。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attractant for mollusk gastropods of land and waterpox and an attractant / insecticide for attracting insects.
[0002]
[Prior art]
Land-crusted gastropods such as slugs and mussels greatly damage the value of these crops because they damage many plants such as agricultural crops, flower buds, foliage plants, fruit trees, and leave silver traces. On the other hand, scallops (commonly known as jumbo snails), which are varicella gastropods, cause enormous damage during the initial cultivation period because they prefer to eat seedlings of transplanted rice and direct seeded rice when inhabiting in paddy fields.
[0003]
As a method for controlling these terrestrial gastropods, a method using a spray agent or an attractant / insecticide can be mentioned. However, sprays can only eliminate gastropods that were found with the naked eye, and are not suitable for the control of nocturnal slugs and mussels. In addition, bait preparations containing about 3 to 6% of metaaldehyde are commercially available as attractants and insecticides. This bait agent is an agent that attracts and kills terrestrial gastropods, but terrestrial gastropods prefer to live in high humidity areas, so when used in areas with high moisture, the bait agent (granule) tends to collapse, There is a problem that the attracting and insecticidal period is shortened. In addition, metaaldehyde has been cited as a problem of ineffective insect pests in some land snails, and development of new drugs is desired.
[0004]
Furthermore, in order to improve the attractiveness of land-gastropods, the composition of yeast and animal food (Japanese Patent Laid-Open No. 3-184901), the composition of food fermented with yeast (Japanese Patent Laid-Open No. 3-130203), the composition of sake lees (JP-A-10-25207), a combination of sugars, vanillin, maltol, and lower alcohols (C2-4) (JP-A-11-130612) has been proposed.
[0005]
Since it is used in water and low fish toxicity is required, there are few effective insecticides, and lime nitrogen, IBP agent, and cartap are used as components that reduce the damage of scallop apple mussels. Lime nitrogen in it is an insecticidal effect in respiration inhibition by cyanamide as a decomposition product, and IBP and cartap use a food damage prevention effect due to the repellent effect of active ingredients. All of these have the problem of contaminating the rice field water. In addition, 3,5-xylyl N-methylcarbamate and the like (JP-A-3-2104) have been proposed as insecticidal components, but since there are very few attractants that are effective in water, no proposal has been made regarding attractants. Absent.
[0006]
[Problems to be solved by the invention]
The conventional gastropod attractant and insecticide metaldehyde has not been able to satisfy the attracting effect. For this reason, when a large amount of a metaaldehyde agent is sprayed in order to increase the attracting effect, another problem arises in that an insecticidal component is released more than necessary in the environment and adversely affects other organisms.
[0007]
Accordingly, an object of the present invention is to provide an attractant having a higher attracting power to gastropods, and to provide an attractant / insecticide for gastropods in which an attracting substance is mixed with an insecticide effective for gastropods, The object is to provide an attractant and attractant / insecticide for varicella gastropods, which were considered difficult to develop. Moreover, it aims at reducing the usage-amount of an attractant and an insecticide by raising attracting power, and reducing the insecticidal component discharge | released in the environment.
[0008]
[Means for Solving the Problems]
Therefore, the present inventors have focused on the crops, flower buds, foliage plants, fruit trees, and fermentable foods that are injured, and studied the attractiveness of the volatile components that they have. As a result, aldehydes, fatty acids, fatty acid esters, aliphatic alcohols, etc. having a specific total carbon number have a strong attraction for gastropods, and if these components are mixed with insecticidal ingredients, effective attracting and We found that an insecticide was obtained.
[0009]
That is, the present invention relates to an aliphatic aldehyde having 5 to 12 carbon atoms, a fatty acid having 5 to 12 carbon atoms, a fatty acid ester having 6 to 11 carbon atoms, an aliphatic alcohol having 6 to 11 carbon atoms, phenylacetic acid and para The present invention provides a gastropod attractant containing at least one compound selected from acetaldehyde. The present invention also provides a gastropod attractant and insecticide characterized by mixing the above-mentioned attractant compound with an insecticidal component effective for gastropods. Furthermore, the present invention provides an aliphatic aldehyde having 5 to 12 carbon atoms, a fatty acid having 5 to 12 carbon atoms, a fatty acid ester having 6 to 11 carbon atoms, an aliphatic alcohol having 6 to 11 carbon atoms, phenylacetic acid, and paraacetaldehyde. The present invention provides a method for attracting gastropods, comprising using at least one compound selected from the group consisting of compounds as attractants. The attractant / insecticide for gastropods of the present invention is realized by completing the attractant for gastropods of the present invention.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The gastropods referred to in the present invention include those of terrestrial and varicella, where the terrestrial gastropods are urchinaceae, such as the Japanese amphioxus, chachaura slugs, and the black slugs, the slugs such as the slugs It refers to slugs such as the swordfish family such as the swordfish, the mussel family such as the red mussel, the african family such as the African mussel, and the snails such as the snail family such as the black mussel. In addition, chickenpox gastropods refer to apple mussels such as the scallop family.
[0011]
The active ingredient of the gastropod attractant of the present invention includes an aliphatic aldehyde having 5 to 12 carbon atoms, a fatty acid having 5 to 12 carbon atoms, a fatty acid ester having 6 to 11 carbon atoms, and a fatty acid ester having 6 to 11 carbon atoms. It contains one or more compounds selected from aliphatic alcohol, phenylacetic acid and paraacetaldehyde. Here, aliphatic aldehydes, fatty acids, fatty acid esters, and aliphatic alcohol aliphatic chains may be linear, branched, or terpene-based.
[0012]
In aliphatic aldehydes and fatty acids, the gastropod attracting effect of compounds having a total carbon number of 5 to 12 is significantly superior to the gastropod attracting effect of compounds having a total carbon number outside this range. Moreover, in fatty acid ester and aliphatic alcohol, the gastropod attracting effect of the compound having a total carbon number of 6 to 11 is remarkably superior to the gastropod attracting effect of the compound having the total carbon number outside the range.
[0013]
Examples of the aliphatic aldehyde used in the present invention include n-hexanal, n-heptanal, trans-2-nonenal, n-octanal, n-nonanal, 2,6-nonadienal, n-decanal, 2,4-decadienal, n -Undecanal, 2-methyldecanal (methyloctylacetaldehyde), 10-undecenal, 2-methylundecanal (methylnonylacetaldehyde), citral, citronellal and the like. Examples of the fatty acid include n-hexanoic acid, n-heptanoic acid, n-octanoic acid, n-nonanoic acid, n-decanoic acid, gellanic acid, citronellic acid and the like. Examples of the fatty acid ester include isoamyl acetate, ethyl butyrate, hexyl acetate, ethyl hexanoate, and ethyl octoate. Examples of the aliphatic alcohol include cis-3-hexenol, 1-octen-3-ol, cis-3-nonenor, nerol, and geraniol.
[0014]
Among the above-mentioned specific examples, n-hexanal, n-octanal, n-nonanal, n-decanal, n-undecanal, 2-methyldecanal, citral, citronellal, n-octanoic acid, n-nonane Acid, gellanic acid, isoamyl acetate, ethyl butyrate, hexyl acetate, ethyl hexanoate, 1-octen-3-ol, cis-3-nonenol, phenylacetic acid, paraacetaldehyde.
[0015]
The attractive compound content in the gastropod attractant of the present invention is 0.005 to 10% by weight, and the desired effect is obtained, but preferably 0.01 to 5% by weight, more preferably 0.05 to 3%. 0.0% by weight.
[0016]
Moreover, if an insecticidal component effective for gastropods is mixed with the attracting compound, an attractant / insecticide that attracts and kills gastropods can be obtained. Such insecticidal components are not limited as long as they have a laparopod action, such as metaaldehyde, triphenoltin chloride, triphenoltin acetate, lime nitrogen, IBP, cartap, macrotetrolide, triallyl 2-cyanurate Esters, thiodicarb, 3,5-xylyl N-methyl carbamate, and the like are preferable, and particularly preferred are metaldehyde and 3,5-xylyl N-methyl carbamate.
[0017]
The content of the attractive compound in the attractant / insecticide of the present invention is the same as in the case of the attractant described above, and the desired effect is obtained at 0.005 to 10% by weight, preferably 0.01 to 5% by weight, more preferably 0.05 to 3.0% by weight. Although content of an insecticidal component changes with kinds, it is 1 to 10 weight%, Preferably it is 3 to 8 weight%.
[0018]
The attractant / insecticide of the present invention has 1-naphthyl-N-methylcarbamate (NAC, carbaryl), O, O-- to provide an insecticidal effect such as dandelion and millipede that inhabits the same environment as gastropods as necessary. Formulated with insecticidal components such as diethyl-O- (2-isopropyl-6-methylpyrimidin-4-yl) phosphorothioate (diazinone), O, S-dimethyl-N-acetyl phosphoramidothioate (acephate) I can do things.
[0019]
The attractant and attractant / insecticide of the gastropod of the present invention may contain a solvent, an excipient, an edible component, and the like. Examples of the solvent include alcohols such as ethanol and isopropyl alcohol; glycols such as propylene glycol and dipropylene glycol; esters such as phthalic acid esters; hydrocarbons such as liquid paraffin and isoparaffin. As the excipient, powders such as diatomaceous earth, silica, silica gel, calcium silicate, clay, dextrin, starch, carboxymethylcellulose, methylcellulose, and wheat flour can be used. In addition, edible ingredients such as potato, bran, rice bran, wheat flour and other sugars, sugar, glucose, syrups such as starch syrup, pupa, krill, fish meal, animal powder such as cow and pork flour, yeast, etc. Can do.
[0020]
Moreover, boric acid, sodium dehydroacetate, benzoic acid, sorbic acid and its salt, paraoxybenzoic acid esters, etc. can be mix | blended as a preservative as needed.
[0021]
As the dosage form of the gastropod attractant and attractant / insecticide of the present invention, a solid preparation is preferable in that it can act for a long time, and it can be in the form of pellets, powders, beads, disks, etc. .
[0022]
The attractant and attractant / insecticide of the present invention are distributed in a field, paddy field, irrigation canal, orchard, orchard, garden, flower pot, a place where gastropods around the house are inhabited, or a conical shape with a hole serving as an entrance It can also be used by being installed in trap containers of various shapes such as a cylindrical shape and a rectangular parallelepiped.
[0023]
【Example】
Example 1
The attractiveness of the attractive compound was evaluated by the following method.
[Evaluation method] (T-shaped glass tube method)
A test tube with a diameter of 7 mm is combined to create a T-tube consisting of 5 cm of the introduction part and 13 cm after branching, and a 100 mL Erlenmeyer flask is connected to the introduction part. Put 3 pieces of cabbage pieces with a diameter of 7 mm on both ends of the T-tube, place 1.5 cm filter paper impregnated with 0.01 mg to 0.0001 mg of the test compound on one end, and place both ends with wet absorbent cotton. I covered it. The concentration of the test compound was sometimes different depending on the concentration, so the test compound concentration was appropriately selected at each stage of 0.01 mg, 0.001 mg, and 0.0001 mg. %) Was determined by [Equation 1].
[0024]
[Expression 1]

[0025]
Two or three Chakoura slugs with a body length of 2 to 3 cm were placed in a triangular flask part, and the test was simultaneously performed so that a total of 9 to 10 animals were obtained.
Evaluation was performed 12 hours later (from night to morning). At that time, slugs are in the Erlenmeyer flask, at the tip of the test compound-impregnated filter paper, at the tip of the filter paper-free tip, or at the branch, and the number of slugs at the tip of the test compound-impregnated filter paper. The total number was counted. As a comparative example, 0.03 g of a commercial attractant / insecticide Nametox (manufactured by Takeda Horticulture) was used as a 6% methaldehyde. Moreover, it implemented also about ethanol and vanillin as a comparative example.
[0026]
As a result, as shown in Table 1, aldehydes, fatty acids, esters, alcohols, phenylacetic acids and paraacetaldehyde having carbon numbers within the scope of the present invention are low in comparison with metaaldehyde, which is a commercially available attractant and insecticide. Concentration showed a remarkable attracting effect.
[0027]
[Table 1]

[0028]
Examples 2-3
The following attractant / insecticide was prepared, and a comparison test with a 6% methaldehyde agent which is a commercial attractant / insecticide was performed.
[0029]
[Method for preparing test bait preparation] 20 parts by weight of gluten (hereinafter simply referred to as “parts”), 50 parts of corn starch, 25.5 parts of clay, 0.5 part of test attractant compound, insecticidal component 3,5-xylyl N-methylcarbamate (XMC) 4 parts were mixed and formed into a pellet of about 1 cm with a granulator, and used as a test attractant / insecticide. Further, NAC agent (manufactured by Takeda Horticulture) was used for 6% of the metaaldehyde agent.
[0030]
Example 2 (Chakoura slug)
Two rice seedling boxes (60 cm × 30 cm) were stacked to form a test container, and a 5 cm petri dish was placed on both ends of the test container to provide a test agent installation site. A test attractant / insecticide 1 g was installed on one side, and 1 g of a 6% methanaldehyde agent was placed on the other side, and 10 tea slugs were left in the center, and an attractive test was conducted. Evaluation was performed after 3 hours.
[0031]
A: 90% or more gathered in the test attractant and insecticide.
B: More than 50% gathered in the test attractant and insecticide.
C: 50% or more gathered in the metaaldehyde agent.
[0032]
As a result, as shown in Table 2, the attractant / insecticide of the present invention was remarkably superior in attraction effect compared to the commercially available metaaldehyde agent which is an attractant / insecticide.
[0033]
[Table 2]

[0034]
Example 3 (Uskawa Maimai)
Two rice seedling boxes were stacked to form a test container, and a 5 cm petri dish was turned down on both ends of the test container to prepare a test agent installation site. The test attractant / insecticide was the same except that 0.05 part of the attractant compound was used. A test attractant / insecticide 1 g was installed on one side, 1 g of a 6% methaldehyde agent was placed on the other side, 10 Usukawamaimai were left in the center, and an attractive test was conducted. Evaluation was performed after 3 hours.
[0035]
A: 90% or more gathered in the test attractant and insecticide.
B: More than 50% gathered in the test attractant and insecticide.
C: 50% or more gathered in the metaaldehyde agent.
[0036]
As a result, as shown in Table 3, the attractant / insecticide of the present invention was remarkably superior in attraction effect compared to the commercially available metaaldehyde agent which is an attractant / insecticide.
[0037]
[Table 3]

[0038]
Example 4 (Sukurimingai)
An attracting evaluation device made of 1.4 m PP resin is prepared, water is dropped from one side, and 1 g of test attractant / insecticide is placed on the dropping side and set. From the opposite side, 10 Sukurimingaigai (shell diameter of 2 cm or more) were allowed to stand, and the approaching situation to the attractant / insecticide containing 0.5 part of the attractant compound was examined one day later. The evaluation criteria are as follows.
[0039]
A: Attracted to 60% or more test inducers and insecticides.
○: Attracted to 30% or more test inducers and insecticides.
X: Attractability is not recognized.
[0040]
As a result, as shown in Table 4, the attractant / insecticide of the present invention showed an excellent attracting effect on the scallop apple shellfish.
[0041]
[Table 4]

[0042]
In Examples 2 to 4, all attracted gastropods died.
[0043]
【The invention's effect】
If the attractant / insecticide of the present invention is used, it has an attracting effect superior to that of the conventional attractant / insecticide metaaldehyde, so that more effective control can be achieved. Since the attracting effect is high, insecticidal components released into the environment can be reduced. The present invention also makes it possible to provide an attractant and an attractant / insecticide for varicella gastropods.

Claims (5)

n-heptanal, trans-2-nonenal, n-octanal, n-nonanal , n -decanal, 2,4-decadienal, n-undecanal, 2-methyldecanal (methyloctylacetaldehyde) , 2 -methylundecanal ( methyl nonyl acetaldehyde), citral, citronellal, attractants gastropods containing as attractant of one or more iso- valeraldehyde, and cis-3-Hekisena Le whether we chosen aliphatic aldehydes.   2. The gastropod attractant according to claim 1, wherein the content of the attractant is 0.005 to 10% by weight. n-heptanal, trans-2-nonenal, n-octanal, n-nonanal , n -decanal, 2,4-decadienal, n-undecanal, 2-methyldecanal (methyloctylacetaldehyde) , 2 -methylundecanal ( methyl nonyl acetaldehyde), citral, citronellal, iso- valeraldehyde and cis-3-Hekisena contain Le whether we one or more aliphatic aldehydes selected as attractants, it was mixing the active insecticidal ingredient gastropods, An attractant and insecticide for gastropods.   4. The gastropod attractant / insecticide according to claim 3, wherein the content of the attractant is 0.005 to 10% by weight and the content of the insecticidal component effective for gastropods is 1 to 10% by weight. n-heptanal, trans-2-nonenal, n-octanal, n-nonanal , n -decanal, 2,4-decadienal, n-undecanal, 2-methyldecanal (methyloctylacetaldehyde) , 2 -methylundecanal ( methyl nonyl acetaldehyde), citral, citronellal, iso- valeraldehyde, and cis-3-Hekisena Le whether we one or more aliphatic aldehydes selected, attraction method gastropods, characterized in that for use as attractants.