JP2006213622A - Persimmon fruit moth communication-disturbing agent and persimmon fruit moth communication-disturbing method - Google Patents

Persimmon fruit moth communication-disturbing agent and persimmon fruit moth communication-disturbing method Download PDF

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JP2006213622A
JP2006213622A JP2005026458A JP2005026458A JP2006213622A JP 2006213622 A JP2006213622 A JP 2006213622A JP 2005026458 A JP2005026458 A JP 2005026458A JP 2005026458 A JP2005026458 A JP 2005026458A JP 2006213622 A JP2006213622 A JP 2006213622A
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communication
oyster
moth
agent
disturbing
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Koji Tsuchida
浩治 土田
Satoru Ando
哲 安藤
Toshiro Suzuki
俊郎 鈴木
Masahiro Taira
正博 平
Naonori Matsuo
尚典 松尾
Yoshihiro Taguchi
義広 田口
Takehiko Fukumoto
毅彦 福本
Fumiaki Mochizuki
文昭 望月
Hideji Naka
秀司 中
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Shin Etsu Chemical Co Ltd
Gifu University NUC
Tokyo University of Agriculture and Technology NUC
Tokyo University of Agriculture
Gifu Prefecture
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Shin Etsu Chemical Co Ltd
Gifu University NUC
Tokyo University of Agriculture and Technology NUC
Tokyo University of Agriculture
Gifu Prefecture
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a persimmon fruit moth (Stathmopoda masinissa) communication-disturbing agent containing a sex pheromone secreted by a female of a persimmon fruit moth as an active ingredient. <P>SOLUTION: This communication-disturbing agent is prepared by solely using E4,Z6-16:OAc [(E4,Z6)-4,6-hexadecadienyl acetate], E4,Z6-16:Ald [(E4,Z6)-4,6-hexadecadienal], or E4,Z6-16:OH [(E4,Z6)-4,6-hexadecadien-1-ol] which are each identified as a component of the sex pheromone of the persimmon fruit moth or appropriately mixing the three components. Further, it is confirmed that the communication-disturbing agent which is prepared as a mixture, by mixing 6 mg of the E4,Z6-16:Ald into 100 mg of the E4,Z6-16:OAc, and comprises a two-component system is extremely improved in a communication-disturbing effect, when compared with that of a one-component system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、カキノヘタムシガの交信攪乱剤、及びカキノヘタムシガの交信攪乱方法に関するものであり、特に、カキの果実に対して食害を及ぼすカキノヘタムシガの雌雄間の性フェロモンによる交信を攪乱し、交尾率を低下させるためのカキノヘタムシガの交信攪乱剤、及びカキノヘタムシガの交信攪乱方法に関するものである。   TECHNICAL FIELD The present invention relates to a communication disruptor for oyster leaf moth, and a method for disrupting oyster leaf moth, and in particular, disrupts communication by sex pheromone between male and female oyster leaf moths that cause damage to oyster fruit, thereby reducing the mating rate. The present invention relates to a communication disturbance agent for oyster leaf moth, and a communication disturbance method for burrowing leaf moth.

従来から、カキの果実に対する食害を発生させる最重要害虫として、マルハキバガ科ニセマイコガ亜科に属するカキノヘタムシガが知られている。このカキノヘタムシガの幼虫は、収穫前の未成熟の状態のカキの果実に侵入し果実を腐敗させ、または変色させるなどの被害を与えている。そして、腐敗等が進行した果実が樹木から落下する前に他の果実へと移動し、上記と同様の食害を繰返している。そのため、一個体当たりの幼虫でカキの果実が数個から数十個の被害を受けることがある。   Conventionally, as the most important pest that causes phytotoxicity to oyster fruits, oyster leaf moth belonging to the subfamily of Bultivaceae is a known family. The larvae of the oyster bark beetle invade the immature oyster fruit before harvesting, causing damage such as decay or discoloration of the fruit. And the fruit which decayed etc. moved to other fruit before falling from a tree, and the same food damage as the above is repeated. As a result, oyster fruits may be damaged by several to tens of larvae per individual.

そこで、カキを栽培する栽培農家では、係るカキノヘタムシガによる食害を防ぐため、種々の方法を採用し、その防除にあたっている。最も一般的な方法としては、カキノヘタムシガの果実への侵入前或いは侵入後に、アセタミプリドからなる液剤、アセフェートからなる液剤、MEP剤、及びバイジット乳剤等の農薬または殺虫剤を散布し、カキノヘタムシガの成虫及び幼虫の侵入を防ぐものが知られている。この場合、幼虫が中齢期となり、一つのカキの果実を食害後、次に果実に移動(転食)する期間の間に、農薬等の散布を集中的に行うことが最も効果的であると知られている。そのため、カキの栽培農家は、農薬等の散布によって最も効果的にカキノヘタムシガを防除することができる散布時期の決定に細心の注意を払っている。   Therefore, the cultivating farmers who cultivate oysters employ various methods in order to prevent the damage caused by the oyster stag beetle, and control them. The most common method is to spray a solution of acetamiprid, a solution of acephate, a pesticide or insecticide such as a bidet emulsion before or after invasion of the fruit of oyster leaf moth, adult and larvae What is known to prevent the invasion of In this case, it is most effective to concentrate the spraying of agricultural chemicals during the period when the larvae are in the middle-aged period, and after eating damage to one oyster fruit and then moving (transferring) to the fruit. It is known. For this reason, oyster growers pay close attention to determining the time of spraying that can most effectively control oyster moths by spraying pesticides and the like.

一方、昆虫(特に蛾類)は、その生物学的な研究成果によって、雌が分泌する性フェロモンを利用し、交尾の際に雄との交信が行われることが知られている。この性フェロモンの成分は、蛾の種類によって異なることが知られ、それぞれの蛾に対して同定された性フェロモンを人工的に合成し、農作物が栽培される圃場に散布することにより、雌雄の交尾活動を攪乱し、交尾率を低下させることが行われている。その結果、産卵及び次世代となる幼虫の孵化が阻止され、圃場に農作物に被害を及ぼす昆虫が存在する確率が小さくなる。このとき、雌からの分泌と同様に全ての性フェロモン成分を、若しくはそれらの中から選別した成分を圃場内に大量に放出することにより、雄は性フェロモンに対する慣れによって神経中枢が麻痺したり、性フェロモンの放出源を特定するために行う無駄な定位行動によって、雌と遭遇して交尾する可能性が低くなる。   On the other hand, insects (especially moths) are known to communicate with males at the time of mating by utilizing sex pheromones secreted by females based on their biological research results. The components of this sex pheromone are known to vary depending on the type of cocoon, and the sex pheromone identified for each cocoon is artificially synthesized and sprayed on the field where the crop is cultivated, so that the male and female mating Activities are disrupted to reduce the mating rate. As a result, egg laying and hatching of the next generation larvae are prevented, and the probability that insects that damage crops in the field are reduced. At this time, by releasing a large amount of all sex pheromone components in the field as well as secretion from females, or males, the nerve center is paralyzed by accustoming to sex pheromones, The useless stereotactic behavior performed to identify the source of the sex pheromone reduces the chance of encountering and mating with a female.

上記の交信攪乱剤及び交信攪乱方法の一例を示すと、ヨモギエダシャクに対し、シス−3,4−エポキシ(6Z,9Z)−ノナデカジエンと、シス−6,7−エポキシ−(3Z,9Z)−ノナデカジエンと、シス−9,10−エポキシ−(3Z,6Z)−ノナデカジエンとを有効成分として含む交信攪乱剤を利用するものが開示されている(特許文献1参照)。なお、交信攪乱剤として使用される性フェロモンの成分は、蛾の雌から分泌される天然の化合物を化学反応によって人工的に合成したものであり、圃場の土壌や農作物に対する直接的な影響、及び圃場周囲の環境に対する影響はほとんどなく、また人体に対する影響もない。また、本発明者らは、既にカキノヘタムシガに係る性フェロモンの成分について同定している(非特許文献1参照)。   An example of the communication disrupting agent and the communication disturbing method is as follows. For mugwort, cis-3,4-epoxy (6Z, 9Z) -nonadecadien and cis-6,7-epoxy- (3Z, 9Z)- The thing using the communication disturbance agent which contains nonadecadiene and cis-9,10-epoxy- (3Z, 6Z) -nonadecadiene as an active ingredient is indicated (refer to patent documents 1). The component of the sex pheromone used as a communication disrupter is the artificial synthesis of a natural compound secreted from female moths by chemical reaction, which has a direct effect on the soil and crops in the field, and There is almost no impact on the environment around the field and there is no impact on the human body. Moreover, the present inventors have already identified the component of the sex pheromone which concerns on the oyster leaf moth (refer nonpatent literature 1).

特開2003−81718号公報JP 2003-81718 A Naka,H., et al,Sex pheromone of the persimmon fruit moth, Stathmopoda masinissa: identification and laboratory bioassay of (4E,6Z)−4,6−hexadecadien−1−ol derivatives., J. Chem. Ecol. Vol.29, p2429−2441, 2003Naka, H .; , Et al, Sex pheromone of the persimmon fruit moth, Statmopoda masisisisa: identification and laboratory bioassay of (4E, 6Z) -4, 6-di-a-1 , J. et al. Chem. Ecol. Vol. 29, p2429-2441, 2003

しかしながら、上述したカキノヘタムシガによる食害を防ぐ方法は、下記に掲げるような問題を生じることがあった。すなわち、農薬等を利用し、化学的にカキノヘタムシガを駆除しようとする場合、農薬等の散布時期は、カキノヘタムシガの幼虫が中齢期に相当し、次のカキに移動する期間、或いは交尾した成虫によって産卵し、孵化した幼虫が果実に侵入するまでの期間等の非常に短期間に限定されていた。   However, the above-described method for preventing food damage caused by stag beetles sometimes causes the following problems. In other words, when using pesticides to chemically control oyster fly moths, the spraying time of pesticides, etc. corresponds to the middle ages of the oyster fly moth larvae, or the mating adults It was limited to a very short period of time, such as the period until the larvae that had laid eggs and hatched entered the fruit.

そのため、カキの栽培農家は、天候等の諸事情により、農薬散布の最適なタイミングを逃すことによって、農薬による十分な防除効果を得られない場合があった。さらに、農薬の使用は、圃場及びその周囲の環境等に影響を及ぼすことがあり、近年の消費者の無農薬栽培志向等からこれらの農薬の使用を躊躇し、使用を見送ることもあった。   Therefore, the oyster farmer sometimes fails to obtain a sufficient control effect due to the pesticide by losing the optimal timing of spraying the pesticide due to circumstances such as the weather. Furthermore, the use of pesticides may affect the field and the surrounding environment, etc., and the use of these pesticides has been discouraged due to the recent consumer preference for pesticide-free cultivation.

一方、性フェロモンを利用する交信攪乱剤は、農薬等に生じる問題を考慮する必要がなく、非常に有益な手段であった。しかしながら、個々の昆虫(害虫)によって、交信攪乱の対象となる性フェロモンの成分の種類及び化学的特性が異なるため、各害虫毎にその化学構造を明確に解明する必要があった。また、蛾類の種類は多種に亘り、カキの果実に対して食害を行うマルハキバガ科ニセマイコガ亜科に属するカキノヘタムシガに対する交信攪乱の研究等は未解明の部分が多く、特に同定された性フェロモンの成分の使用方法等の特定がなされていない現状にあった。そのため、カキの栽培農家は、カキノヘタムシガの性フェロモンの成分を交信攪乱剤として利用し、生物学的に防除を行う具体的な手法及び使用条件等が開発されることを期待していた。   On the other hand, a communication disrupter using a sex pheromone is a very useful means because it is not necessary to consider the problems caused by agricultural chemicals. However, since the types and chemical characteristics of the sex pheromones that are subject to communication disruption differ depending on the individual insect (pest), it is necessary to clarify the chemical structure of each pest. In addition, there are many types of moss, and there are many unexplained researches on the disruption of communication with the oyster moth, which belongs to the subfamily of the genus Phytoseiidae, which causes damage to oyster fruits. There was no current specification of how to use. For this reason, oyster farmers have been expected to develop specific methods and conditions for biological control by using components of the sex pheromone of oyster leaf moth as a communication disrupter.

そこで、本発明は、上記実情に鑑み、カキノヘタムシガの雌が分泌する性フェロモンの成分を同定し、該性フェロモンの成分を交信攪乱剤に利用したカキノヘタムシガの交信攪乱剤、及びカキノヘタムシガの交信攪乱方法の提供を課題とするものである。   Therefore, in view of the above circumstances, the present invention identifies a component of a sex pheromone secreted by females of oyster fly moths, a communication disruptor for oyster leaf moths using the component of the sex pheromone as a communication disrupter, and a method for disrupting the communication of oyster fly moths. Providing is an issue.

上記の課題を解決するために、本発明者らは、カキノヘタムシガの性フェロモンの成分について鋭意研究を重ね、カキノヘタムシガの交信を攪乱する有効成分を下記の三成分であることを同定し、該成分を圃場に効率的に散布することによってカキノヘタムシガの交信を攪乱し、交尾率の低下及び幼虫の孵化率を低下させることを知見した。   In order to solve the above problems, the present inventors have conducted extensive research on the component of the sex pheromone of the oyster leaf moth, identified the following three components as the active component that disrupts the communication of the potato leaf moth, It was found that by efficiently spraying in the field, the communication of oyster leaf moths was disturbed to reduce the mating rate and the hatching rate of larvae.

すなわち、本発明のカキノヘタムシガの交信攪乱剤は、「カキノヘタムシガの性フェロモンによる雌雄間の交信を攪乱し、交尾率を低下させるカキノヘタムシガの交信攪乱剤であって、(4E,6Z)−4,6−ヘキサデカジエニルアセテートを有効成分として含有する」ものから主に構成されている。なお、(4E,6Z)−4,6−ヘキサデカジエニルを以降の本明細書中においてE4,Z6−16:OAc或いは交信攪乱剤Aと称するものとする。   In other words, the communication disrupter for oyster leaf moths of the present invention is “a turbulent communication disrupter for oyster leaf moths that disrupts the communication between males and females by the sex pheromone of the oyster leaf moth, and reduces the mating rate, (4E, 6Z) -4,6- It is mainly composed of “containing hexadecadienyl acetate as an active ingredient”. Note that (4E, 6Z) -4,6-hexadecadienyl is referred to as E4, Z6-16: OAc or communication disrupting agent A in the following specification.

さらに、本発明のカキノヘタムシガの交信攪乱剤は、上記構成に加え、「(4E,6Z)−4,6−ヘキサデカジエナール、及び(4E,6Z)−4,6−ヘキサデカジエン−1−オールのいずれか一方を有効成分として含有する」ものから構成されている。なお、(4E,6Z)−4,6−ヘキサデカジエナール(4,6−hexadecadienal)を以降の本明細書中においてE4,Z6−16:Ald或いは交信攪乱剤Bと称するものとする。また、(4E,6Z)−4,6−ヘキサデカジエン−1−オール(4,6−hexadecadien−1−ol)を以降の本明細書中においてE4,Z6−16:OH或いは交信攪乱剤Cと称するものとする。   Furthermore, in addition to the above-mentioned constitution, the communication disrupter for oyster leaf moth of the present invention includes “(4E, 6Z) -4,6-hexadecadienal and (4E, 6Z) -4,6-hexadecadien-1- It is comprised from what contains any one of oar as an active ingredient. (4E, 6Z) -4,6-hexadecadienal (4,6-hexadecadienal) will be referred to as E4, Z6-16: Ald or communication disrupter B in the following specification. In addition, (4E, 6Z) -4,6-hexadecadien-1-ol is referred to as E4, Z6-16: OH or communication disrupting agent C in the following specification. Shall be referred to as

さらに、本発明のカキノヘタムシガの交信攪乱剤は、上記構成に加え、「前記E4,Z6−16:OAcを80.0重量%以上、99.0重量%以下、E4,Z6−16:Ald及びE4,Z6−16:OHのいずれか一方を1.0重量%以上、20.0重量%以下含有してなる」ものから構成されている。   Furthermore, in addition to the above-described constitution, the communication disruptor for oyster leaf beetle according to the present invention is “the E4, Z6-16: OAc is 80.0 wt% or more and 99.0 wt% or less, E4, Z6-16: Ald and E4 , Z6-16: OH is contained in an amount of 1.0 wt% or more and 20.0 wt% or less ”.

したがって、本発明のカキノヘタムシガの交信攪乱剤によれば、E4,Z6−16:OAcをカキノヘタムシガに対する交信攪乱剤の主成分として使用し、E4,Z6−16:OAcを単独、或いはE4,Z6−16:OAcを80.0重量%以上、99.0重量%以下、E4,Z6−16:Ald及びE4,Z6−16:OHのいずれか一方を1.0重量%以上、20.0重量%以下の比率で含有してなる交信攪乱剤が形成される。これにより、カキノヘタムシガの性フェロモンによる交信を攪乱し、交尾率を低下させることができる。特に、E4,Z6−16:OAcに対し、E4,Z6−16:Ald及びE4,Z6−16:OHのいずれか一方を所定の比率で混合し、二成分を有効成分とする交信攪乱剤を利用することにより、その交尾率の交信攪乱作用が顕著に現れることが示される。   Therefore, according to the present invention, the E4, Z6-16: OAc is used as a main component of the communication disrupter for the kakinohatamashiga, and E4, Z6-16: OAc is used alone or E4, Z6-16. : OAc 80.0 wt% or more, 99.0 wt% or less, E4, Z6-16: Ald and E4, Z6-16: OH 1.0 wt% or more, 20.0 wt% or less A communication disrupting agent is formed which is contained at a ratio of Thereby, the communication by the sex pheromone of the red-footed beetle can be disturbed, and the mating rate can be lowered. In particular, a communication disrupting agent having two components as active ingredients by mixing E4, Z6-16: OAc with any one of E4, Z6-16: Ald and E4, Z6-16: OH at a predetermined ratio. By using it, it is shown that the communication disturbance effect of the mating rate appears remarkably.

さらに、本発明のカキノヘタムシガの交信攪乱方法は、「カキノヘタムシガの性フェロモンによる雌雄間の交信を攪乱し、交尾率を低下させるカキノヘタムシガの交信攪乱方法であって、(4E,6Z)−4,6−ヘキサデカジエニルアセテートを80.0重量%以上、99.0重量%以下、(4E,6Z)−4,6−ヘキサデカジエナール及び(4E,6Z)−4,6−ヘキサデカジエン−1−オールのいずれか一方を1.0重量%以上、20.0重量%以下含有してなる交信攪乱剤を圃場に散布する」ものである。   Further, the method for disrupting the communication of the oyster leaf beetle of the present invention is a method for disrupting the communication of the oyster leaf beetle, which disrupts the communication between males and females by the sex pheromone of the oyster leaf moth, and reduces the mating rate, (4E, 6Z) -4,6- Hexadecadienyl acetate is 80.0 wt% or more and 99.0 wt% or less, (4E, 6Z) -4,6-hexadecadienal and (4E, 6Z) -4,6-hexadecadien-1 -A communication disrupter containing 1.0% by weight or more and 20.0% by weight or less of any one of the oars is sprayed on the field.

したがって、本発明のカキノヘタムシガの交信攪乱方法によれば、前述した二成分を有効成分とする交信攪乱剤を用い、圃場に散布することにより、カキノヘタムシガの性フェロモンによる交信を攪乱し、交尾率を低下させることができる。   Therefore, according to the method for disrupting the contact of oyster leafhopper of the present invention, by using the communication disruption agent having the above-mentioned two components as the active ingredients and spraying it on the field, the contact with the sex pheromone of the leafhopper moth is disturbed and the mating rate is lowered. Can be made.

本発明の効果として、カキノヘタムシガの性フェロモンの成分として同定された三成分(交信攪乱剤A、交信攪乱剤B、交信攪乱剤C)を使用することにより、カキの果実に対する食害を引起こすカキノヘタムシガに対して強い交信攪乱効果を生じさせることができる。これにより、圃場における雌雄の交尾率が減少する。その結果、圃場での産卵数を削減し、カキの果実を食害する次世代のカキノヘタムシガの幼虫の孵化及び発生を抑えることができる。そのため、圃場におけるカキノヘタムシガの幼虫の存在数を激減させ、食害を防ぐことができる。さらに、農薬等に比べ、圃場及び圃場周囲の環境に対する影響が少ないため、安全でかつ、効率的なカキノヘタムシガの防除が可能となる。   As an effect of the present invention, the use of the three components (communication disruptor A, communication disruptor B, communication disruptor C) identified as the sex pheromone component of the oyster leaf moth, to cause the damage to the oyster fruit that causes phytotoxicity to oyster fruit. In contrast, a strong communication disruption effect can be produced. This reduces the male / female mating rate in the field. As a result, it is possible to reduce the number of eggs laid in the field and to suppress the hatching and generation of the next-generation oyster leaf moth larvae that feed on oyster fruits. Therefore, it is possible to drastically reduce the number of larvae of oyster fly moths in the field and prevent food damage. Furthermore, since it has less influence on the field and the environment around the field than pesticides and the like, it is possible to control oyster leaf moths safely and efficiently.

以下、本発明の一実施形態であるカキノヘタムシガの交信攪乱剤(以下、「交信攪乱剤」と称す)、及びカキノヘタムシガの交信攪乱方法について説明する。ここで、本実施形態の交信攪乱剤では、カキノヘタムシガの性フェロモンの成分として同定された交信攪乱剤A(E4,Z6−16:OAc、化1参照)、交信攪乱剤B(E4,Z6−16:Ald、化2参照)、及び交信攪乱剤C(E4,Z6−16:OH、化3参照)が利用される。また、本実施形態では、交信攪乱剤Aをカキノヘタムシガの交信攪乱のための主たる有効成分として使用し、該交信攪乱剤Aの単一物、或いは交信攪乱剤Aに対し、交信攪乱剤Bまたは交信攪乱剤Cを所定比率で混合した二成分系の混合物として使用した交信攪乱剤及びカキノヘタムシガの交信攪乱方法について例示している。   Hereinafter, an embodiment of the present invention will be described with regard to the communication disturbance agent for oyster leafhopper (hereinafter referred to as “communication disturbance agent”) and the method for disrupting the communication of potato leafhopper. Here, in the communication disrupting agent of the present embodiment, the communication disrupting agent A (E4, Z6-16: OAc, refer to Chemical Formula 1) identified as a component of the sex pheromone of oyster fly moth, communication disrupting agent B (E4, Z6-16) : Ald, see chemical formula 2), and communication disrupter C (E4, Z6-16: OH, see chemical formula 3). Further, in this embodiment, the communication disrupter A is used as a main active ingredient for the communication disturbance of the oyster leaf moth, and the communication disrupter B or the communication disrupter A is a single substance of the communication disruptor A or the communication disrupter A. An example of a communication disrupting agent using a disturbing agent C mixed at a predetermined ratio as a binary mixture and a method for disrupting the communication of the red-tailed moth is shown.

Figure 2006213622
Figure 2006213622
Figure 2006213622
Figure 2006213622
Figure 2006213622
Figure 2006213622

上記に示すように、交信攪乱剤A、交信攪乱剤B、及び交信攪乱剤Cは、いずれも16個の炭素原子が直鎖状に結合してなる炭化水素を基本骨格とし、4位及び6位の二カ所の位置で二重結合が形成された化合物である。そして、直鎖端に各官能基(アセトキシ基、アルデヒド基、水酸基)が結合した近似の化学構造を有している。なお、交信攪乱剤A、交信攪乱剤B、及び交信攪乱剤Cは、通常の化学反応によって、人工的に合成することが可能であり、これを大量に合成し、本実施形態において使用した。なお、交信攪乱剤Aは、合成過程で生成される微量の幾何異性体を含んでいる。   As shown above, the communication disruptor A, the communication disruptor B, and the communication disruptor C are all based on hydrocarbons formed by linearly bonding 16 carbon atoms in the 4th and 6th positions. Compound in which double bonds are formed at two positions. And it has an approximate chemical structure in which each functional group (acetoxy group, aldehyde group, hydroxyl group) is bonded to the straight chain end. The communication disturbing agent A, the communication disturbing agent B, and the communication disturbing agent C can be artificially synthesized by a normal chemical reaction. These were synthesized in large quantities and used in this embodiment. Note that the communication disrupting agent A contains a trace amount of geometric isomers produced in the synthesis process.

まず、交信攪乱剤Aの単一の交信攪乱効果について示す。交信攪乱の前段階として外径1.41mm、内径0.81mm、長さ20cmのポリエチレン製のチューブを用意し、100mgの交信攪乱剤Aをチューブの内空間に封入し、徐放性のディスペンサーを複数(数百本程度)作製する。このディスペンサーは樹脂製のため容易に折曲げ可能に形成され、カキの樹木等に巻付ける際に容易に固定することができる。そして、このディスペンサーを樹木に巻付けることにより、カキの果実が栽培される圃場に対し、交信攪乱剤Aを徐々に放散させることができる。なお、本実施形態で使用したディスペンサーによる交信攪乱剤Aの放散速度は、約1.1mg/dayのものが使用されている。   First, the single communication disturbance effect of the communication disrupter A will be described. Prepare a polyethylene tube with an outer diameter of 1.41 mm, an inner diameter of 0.81 mm, and a length of 20 cm as a pre-stage of communication disruption. Enclose 100 mg of communication disruptor A in the inner space of the tube, and use a sustained-release dispenser. Make several (several hundreds). Since this dispenser is made of resin, it is easily foldable and can be easily fixed when it is wound around an oyster tree or the like. And by winding this dispenser around a tree, the communication disrupting agent A can be gradually diffused to the field where oyster fruits are grown. In addition, about 1.1 mg / day is used for the emission rate of the communication disrupting agent A by the dispenser used in this embodiment.

一方、カキの果実が栽培される50aの圃場を、10a(=「A区」)、10a(=「B区」)、30a(=「C区」)の広さにそれぞれ区分する。その後、A区に対して、作製した30本のディスペンサーを略均一に分布するようにカキの枝に巻付けて固定した。一方、B区に対しては、180本のディスペンサーを略均一に分布するようにA区と同様に固定した。そして、C区には実験の対照区としてディスペンサーの固定を行わず、通常のカキの栽培と同様にした。ここで、A区及びB区は、同一面積に対して巻付け固定したディスペンサーの本数が異なっている。すなわち、1a当たりのディスペンサーの本数(ディスペンサーの分布率)は、A区=3本/a、B区=18本/a、C区=0本/aとなっている。すなわち、B区にはA区の6倍の数のディスペンサーが巻付け固定されている。   On the other hand, the 50a field where oyster fruits are grown is divided into areas of 10a (= “A”), 10a (= “B”), and 30a (= “C”). Thereafter, the 30 dispensers thus prepared were wound around the branches of oysters and fixed so as to be distributed substantially uniformly with respect to the A section. On the other hand, with respect to the B section, 180 dispensers were fixed in the same manner as the A section so as to be distributed substantially uniformly. In C, the dispenser was not fixed as a control group for the experiment, and the cultivation was performed in the same manner as normal oyster cultivation. Here, the number of dispensers wound and fixed on the same area is different between the A section and the B section. That is, the number of dispensers per 1a (dispenser distribution rate) is A section = 3 / a, B section = 18 / a, and C section = 0 / a. That is, six times as many dispensers as the A ward are wound and fixed on the B ward.

その後、A区及びB区に対するディスペンサーの巻付け後、所定の期間を経過し、交信攪乱剤Aの徐放作用を奏するディスペンサーから圃場内に十分に当該交信攪乱剤Aが放散されたことを確認し、巻付けから約二週間後(D1)、約三週間後(D2)、約四週間後(D3)、及び約五週間後(D4)のそれぞれにおける圃場での交尾阻害効果を確認した。具体的に説明すると、本実施形態の第一実施例においては、ディスペンサーの巻付けを7月10日に行い、D1=7月26日、D2=7月30日、D3=8月6日、及びD4=8月13日を調査日として、「つなぎ雌」による交信の有無を確認した。   After that, after wrapping the dispenser to the A and B zones, it is confirmed that the communication disrupting agent A has been sufficiently dissipated in the field from the dispenser that exerts the sustained release action of the communication disrupting agent A after a predetermined period. Then, the mating inhibitory effect in the field was confirmed after about 2 weeks (D1), about 3 weeks (D2), about 4 weeks (D3), and about 5 weeks (D4) after winding. Specifically, in the first example of this embodiment, the dispenser is wound on July 10, D1 = July 26, D2 = July 30, D3 = August 6, And D4 = August 13 was used as the survey date, and the presence / absence of communication by “connecting female” was confirmed.

ここで、「つなぎ雌」による交尾の有無の確認の具体的な手法について説明すると、実験室内で飼育し、羽化させたカキノヘタムシガ(羽化後3日を経過したもの)の処女雌に対し、二酸化炭素を用いて麻酔し、活動を一時的に制限した状態にし、前翅の付け根部分を糸で結ぶことによって「つなぎ雌」を作成した。そして、調査日前日の夕方にA区乃至C区のそれぞれのほぼ中央付近の枝に、15匹/各区繋ぎ、翌朝(調査日当日)に回収した。その後、回収したつなぎ雌の腹部を実体顕微鏡下で解剖し、腹部に存在する精子の有無によって交尾率を算出した。ここで、交尾率は、下記の式(1)によって算出される。
交尾率 = 交尾雌数 / 供試雌数 × 100 ・・・ 式(1)
なお、調査前日の夕方から回収される翌朝までの間に、圃場に存在するカキノヘタムシガの天敵昆虫によって、当該つなぎ雌が損失しているケースについては、交尾率の算出から除外している。その結果を表1に示す。
Here, a specific method for confirming the presence or absence of mating by “Tsunagi female” will be explained. For virgin females of oyster moths that have been bred in the laboratory and emerged (3 days after emergence), carbon dioxide Anesthesia was used, and the activity was temporarily restricted, and a “connecting female” was created by tying the base of the forehead with a thread. Then, in the evening the day before the survey day, 15 animals / each group were connected to the branches in the vicinity of the center of each of the A ward to the C ward, and collected the next morning (on the day of the survey). Thereafter, the abdomen of the collected tethered female was dissected under a stereomicroscope, and the mating rate was calculated according to the presence or absence of sperm present in the abdomen. Here, the mating rate is calculated by the following equation (1).
Mating rate = number of mating females / number of females tested x 100 (1)
In addition, the case where the connecting female is lost due to natural enemy insects of oyster fly moths existing in the field between the evening of the day before the survey and the next morning is excluded from the calculation of the mating rate. The results are shown in Table 1.

Figure 2006213622
Figure 2006213622

これにより、観察のためのディスペンサを巻付けていない対照区のC区では、処女雌による交尾率は、53.7%を示したのに対し、本実施形態の交信攪乱剤を適用し、有効成分として交信攪乱剤Aを用いたものは、A区及びB区のいずれの場合であっても、C区の交尾率から著しく低下した値を示した。特に、圃場に対するディスペンサーの分布率がA区に対して高いB区の場合、交尾率は0.0%であり、完全にカキノヘタムシガによる交信を攪乱することが可能であった。そのため、カキノヘタムシガによる交尾を完全に防止することが観察された。一方、B区と比較し、ディスペンサーの分布率が低いA区であっても交尾率を約10.0%以下に抑えることができ、従来と比してカキノヘタムシガによるカキの果実に対する食害を十分に防ぐことが可能であることが示された。   As a result, in the control section C where no dispenser for observation was wound, the mating rate by the virgin female showed 53.7%, but the communication disruptor of this embodiment was applied and effective. In the case of using the communication disrupting agent A as a component, the value significantly decreased from the mating rate in the C zone in both the A zone and the B zone. In particular, when the distribution ratio of the dispenser with respect to the field is the B zone, which is higher than the A zone, the mating rate is 0.0%, and it was possible to completely disrupt the communication by the oyster bark. For this reason, it was observed that mating by oyster fly moths was completely prevented. On the other hand, compared with the B group, even in the A group where the distribution rate of the dispenser is low, the mating rate can be suppressed to about 10.0% or less. It was shown that it is possible to prevent.

次に、実施例1の調査期間のD1からD2の間に、各区(A区、B区、C区)のそれぞれの枝に対し、処女雌を誘引源としたトラップを設置し、圃場におけるカキノヘタムシガの雄の成虫の誘殺数をカウントした。ここで、トラップは、高さ10cm、縦30cm、横10cmの粘着式のものを用い、粘着板の中央付近に置いたステンレス製のカゴ(直径約60mm)の中に処女雌2頭を入れ、誘引源とした。一方、比較対照用に、何も入れないトラップを合わせて設置した。その結果を表2に示す。この場合、処女雌2頭からは天然の性フェロモンの成分が分泌されている。   Next, between D1 and D2 in the survey period of Example 1, traps using virgin females as the attracting source were installed on each branch of each ward (A ward, B ward, C ward), and The number of male adults killed was counted. Here, the trap is an adhesive type with a height of 10 cm, length of 30 cm, and width of 10 cm. Two virgin females are put in a stainless steel basket (diameter: about 60 mm) placed near the center of the adhesive plate. The source of attraction. On the other hand, a trap with nothing was set for comparison purposes. The results are shown in Table 2. In this case, a natural sex pheromone component is secreted from two virgin females.

Figure 2006213622
Figure 2006213622

表2に示すように、ディスペンサーを巻付けたA区及びB区では、それぞれ僅かに一匹が処女雌のトラップに誘引されたのに対し、交信攪乱剤Aの放散の行われなかったC区では109匹の雄成虫が誘引された。これにより、交信攪乱剤Aを有効成分として用いた本実施形態の交信攪乱剤の優れた効果が確認された。すなわち、処女雌から分泌された性フェロモンに混在される交信攪乱剤Aによって、雄のカキノヘタムシガは、通常の交信が不能となり、雌の存在する場所を特定することが困難となり、到達することができなくなった。これにより、交尾ができなくなり、産卵及び幼虫の孵化といったその後の段階を排除することができた。   As shown in Table 2, in the A and B ward around which the dispenser was wound, each of the ward was attracted to the trap of a virgin female, while the C ward where the communication disrupter A was not released. Then 109 male adults were attracted. Thereby, the excellent effect of the communication disrupting agent of this embodiment using the communication disrupting agent A as an active ingredient was confirmed. That is, due to the communication disrupter A mixed in the sex pheromone secreted from the virgin female, the male oyster fly moth defeats normal communication, making it difficult to identify the location of the female and reaching it. lost. This made it impossible to mate and eliminate subsequent steps such as egg laying and larval hatching.

その後、最終的な効果を確認するため、カキの果実の収穫前に、各区(A区、B区、C区)のそれぞれ中心部付近及び圃場の端部(周辺部)付近のそれぞれ五樹を選定し、その樹に生育したカキの果実数、及びカキノヘタムシガによって食害を受けた被害果数を計測し、その被害果率を算出した。その結果を表3に示す。   Then, in order to confirm the final effect, before harvesting oyster fruits, five trees near the center of each ward (A ward, B ward, C ward) and near the end (peripheral part) of the field The number of oysters grown on the tree and the number of fruits damaged by oysters were measured, and the rate of damage was calculated. The results are shown in Table 3.

Figure 2006213622
Figure 2006213622

これにより、対照区として通常の状態でカキの果実が栽培されたC区に比べ、ディスペンサーの巻付け固定を行ったA区及びB区のいずれにおいても被害果率が減少することが示され、その値はC区に対して約1/3程度になることが確認された。特に、ディスペンサーの分布率の高いB区の場合、A区よりも被害果率の値が小さくなり、本実施形態の交信攪乱剤によるカキノヘタムシガのカキの果実の食害を著しく減少させることが示された。なお、上記結果から圃場の中央部と周辺部との間では、被害果率において特に有意となる差は見受けられなかった。すなわち、圃場にディスペンサーが均一に分布するように固定され、交信攪乱剤Aが十分に放散した状態であれば、中央部及び周辺部のいずれであっても交信攪乱による効果を享受することができることが示された。   This shows that the damage rate is reduced in both the A and B areas where the dispenser is wound and fixed, compared to the C area where oyster fruits are grown in a normal state as the control area. The value was confirmed to be about 1/3 of the C area. In particular, in the B district where the distribution rate of the dispenser is high, the value of the damage fruit rate is smaller than that in the A district, and it was shown that the damage of the oyster fruit of the oyster leaf moth by the communication disrupter of this embodiment is remarkably reduced. . From the above results, there was no significant difference in damage rate between the central part and the peripheral part of the field. That is, if the dispenser is fixed so as to be uniformly distributed in the field and the communication disrupting agent A is sufficiently dissipated, the effect of the communication disruption can be enjoyed in any of the central part and the peripheral part. It has been shown.

次に、交信攪乱剤Aを主たる成分とし、所定の比率で交信攪乱剤Bを混合した二成分系の混合物を使用したカキノヘタムシガの交信攪乱剤について例示する。   Next, an example of a communication disturbance agent for oyster leaf moth using a mixture of two components in which the communication disturbance agent A is a main component and the communication disturbance agent B is mixed at a predetermined ratio will be described.

まず、実施例1と同様に、外径1.41mm、内径0.81mm、長さ20cmのポリエチレン製のチューブを用意し、100mgの交信攪乱剤Aをチューブの内空間に封入し、徐放性のディスペンサーEを作製する。さらに、100mgの交信攪乱剤Aに対し、6.0mgの交信攪乱剤Bを混合した混合物をチューブの内空間に封入した徐放性のディスペンサーFを作製する。すなわち、ディスペンサーEは一成分系の単一物、ディスペンサーFは二成分系の混合物が封入されている。なお、係るディスペンサーE及びディスペンサーFは、それぞれ前述した約1.1mg/dayの放散速度のものが使用される。ここで、混合物に含有する交信攪乱剤Bは、約5.7重量%である。   First, as in Example 1, a polyethylene tube having an outer diameter of 1.41 mm, an inner diameter of 0.81 mm, and a length of 20 cm was prepared, and 100 mg of communication disrupting agent A was sealed in the inner space of the tube to provide sustained release. Dispenser E is prepared. Further, a sustained-release dispenser F in which a mixture obtained by mixing 6.0 mg of the communication disturbing agent B with 100 mg of the communication disturbing agent A is sealed in the inner space of the tube is prepared. That is, the dispenser E encloses a one-component system, and the dispenser F encloses a two-component mixture. As the dispenser E and the dispenser F, those having the above-mentioned release rate of about 1.1 mg / day are used. Here, the communication disrupting agent B contained in the mixture is about 5.7% by weight.

そして、カキの果実が栽培される30aの圃場を、10a(=「G区」)、10a(=「H区」)、10a(=「I区」)のそれぞれ三等分に区分する。そして、G区に対して、作製した30本のディスペンサーEを略均一に分布するようにカキの枝に巻付けて固定した。一方、H区に対しては、同様に30本のディスペンサーFを略均一に分布するように巻付けた。そして、I区には実験の対照区としてディスペンサーの巻付けを行わなかった。すなわち、G区及びH区は、同一面積に巻付け固定されるディスペンサーE,Fの本数は同一であるため、上述した分布率は同じである。一方、各ディスペンサーE,Fから放散される交信攪乱剤の成分が一成分系、または二成分系であることが相違している。   Then, the 30a field where oyster fruits are grown is divided into three equal parts: 10a (= “G ward”), 10a (= “H ward”), and 10a (= “I ward”). Then, the 30 dispensers E produced were wound around the branches of oysters and fixed to the G section so as to be distributed substantially uniformly. On the other hand, 30 dispensers F were similarly wound around the H section so as to be distributed substantially uniformly. The dispenser was not wrapped in the I group as a control group for the experiment. That is, since the number of dispensers E and F wound and fixed in the same area is the same in the G section and the H section, the above-described distribution ratio is the same. On the other hand, it is different that the components of the communication disrupter emitted from the dispensers E and F are one-component systems or two-component systems.

その後、それぞれ30本のディスペンサーE,Fを巻付けた後、所定の期間(約二週間)を経過し、各交信攪乱剤が圃場に十分に放散されたことを確認した後、圃場での交尾阻害効果を検証した。なお、具体的な手法については、先に述べた実施例1と同一であるため、ここでは説明を省略する。そして、下記の表4に示す結果を得た。   Then, after winding 30 dispensers E and F, respectively, after a predetermined period (about two weeks) has passed, after confirming that each communication disruptor has been sufficiently released to the field, mating in the field The inhibitory effect was verified. The specific method is the same as that of the first embodiment described above, and thus the description thereof is omitted here. And the result shown in following Table 4 was obtained.

Figure 2006213622
Figure 2006213622

これにより、ディスペンサーE,Fの巻付け固定をしなかった対照区Iでは、交尾率が28.6%であった。これに対し、一成分の単一物からなるディスペンサーEを巻付けたG区では、22.2%であった。なお、上記実施例1と実施例2との間で同一条件で交尾率が異なる(実施例1:9.3% → 実施例2:22.2%)のは、圃場の周囲の条件や調査期間等が異なるためである。一方、二成分の混合物からなるディスペンサーFを巻付けたH区では、交尾率が0.0%であった。すなわち、同一条件下では、二種類の交信攪乱剤A及び交信攪乱剤Bを所定比率で混合した混合物を利用することにより、カキノヘタムシガの性フェロモンの交信攪乱効果が著しく高くなることが示された。   Thus, in the control group I where the dispensers E and F were not wound and fixed, the mating rate was 28.6%. On the other hand, it was 22.2% in the G section around which the dispenser E made of a single component was wound. Note that the mating rate differs between Example 1 and Example 2 under the same conditions (Example 1: 9.3% → Example 2: 22.2%). This is because the period is different. On the other hand, in the H section around which the dispenser F made of a mixture of two components was wound, the mating rate was 0.0%. That is, under the same conditions, it was shown that the use of a mixture of two kinds of communication disrupters A and communication disruptors B in a predetermined ratio significantly increases the communication disruption effect of the sex pheromone of oyster leaf moth.

さらに、各区(G区、H区、I区)のそれぞれの樹に対し、処女雌を誘引源としたトラップを設置し、圃場におけるカキノヘタムシガの雄の成虫の誘殺数をカウントした。ここで、トラップは、前述の実施例1において示したものと同様のものを使用した。その結果を表5に示す。   Furthermore, traps with virgin females as the attracting source were installed for each tree in each ward (G ward, H ward, and I ward), and the number of adults killed by male oysters in the field was counted. Here, the trap used was the same as that shown in the first embodiment. The results are shown in Table 5.

Figure 2006213622
Figure 2006213622

これにより、対照区のI区に対し、G区は数頭の雄の成虫が誘引され、一方、H区は全く誘引されなかった。そのため、交信攪乱剤を二成分混合したものがさらに交信攪乱効果を有することが示された。   As a result, several male adults were attracted to the G group, whereas the H group was not attracted at all, compared to the I group of the control group. Therefore, it was shown that the mixture of two components of the communication disrupter has a communication disruption effect.

なお、実施例2においては、100mgの交信攪乱剤Aに対し、6mgの交信攪乱剤Bを混合するものを示したが、係る比率は特に限定されるものではなく、交信攪乱剤Aが80.0重量%〜99.0重量%、一方、交信攪乱剤Bが1.0重量%〜20.0重量%の範囲で混合するものであればよい。ここで、交信攪乱剤Bの重量%が1.0重量%を下回ると、二成分の交信攪乱剤を混合した交信攪乱効果を十分に得ることができない。一方、20.0重量%を越えると、それ以上、交信攪乱効果を向上することが見込まれない。そのため、交信攪乱剤Aに対する交信攪乱剤Bを1.0重量%以上、20.0重量%以下にすることが好適である。   In Example 2, a mixture of 6 mg of communication disruptor B with 100 mg of communication disruptor A was shown, but the ratio is not particularly limited, and communication disrupter A is 80. 0 wt% to 99.0 wt%, on the other hand, the communication disturbing agent B may be mixed in the range of 1.0 wt% to 20.0 wt%. Here, if the weight% of the communication disrupter B is less than 1.0% by weight, it is not possible to sufficiently obtain the communication disturbing effect obtained by mixing the two-component communication disruptor. On the other hand, if it exceeds 20.0% by weight, it is not expected to further improve the communication disturbance effect. Therefore, it is preferable that the communication disturbing agent B with respect to the communication disturbing agent A is 1.0% by weight or more and 20.0% by weight or less.

以上、本発明について好適な実施形態を挙げて説明したが、本発明はこれらの実施形態に限定されるものではなく、以下に示すように、本発明の要旨を逸脱しない範囲において、種々の改良及び設計の変更が可能である。   The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention as described below. And design changes are possible.

すなわち、本実施形態の交信攪乱剤において、交信攪乱剤Aを単独、或いは交信攪乱剤Aに対して交信攪乱剤Bを所定比率混合したものを示したが、例えば、交信攪乱剤Aに対して交信攪乱剤Cを混合した混合物を用いるものであってもよい。交信攪乱剤Cは、交信攪乱剤Aの直鎖端の官能基が水酸基に置換したものであり、カキノヘタムシガの性フェロモンの一成分として確認されている。したがって、係る交信攪乱剤Cを交信攪乱剤Aに混合することによっても上述と同様に交信攪乱効果を奏させることができるようになる。ここで、交信攪乱剤Aに対する混合比率は、交信攪乱剤Bと同様の理由から1.0重量%以上、20.0重量%以下に設定することが最適である。   That is, in the communication disrupting agent of the present embodiment, the communication disrupting agent A is shown alone or a mixture of the communication disrupting agent B with the communication disrupting agent A in a predetermined ratio is shown. You may use the mixture which mixed the communication disruption agent C. FIG. The communication disrupter C is a compound in which the functional group at the straight chain end of the communication disrupter A is substituted with a hydroxyl group, and has been confirmed as a component of the sex pheromone of the red-eye beetle. Therefore, by mixing the communication disrupting agent C with the communication disrupting agent A, the communication disrupting effect can be produced as described above. Here, the mixing ratio with respect to the communication disturbing agent A is optimally set to 1.0 wt% or more and 20.0 wt% or less for the same reason as the communication disturbing agent B.

Claims (4)

カキノヘタムシガの性フェロモンによる雌雄間の交信を攪乱し、交尾率を低下させるカキノヘタムシガの交信攪乱剤であって、
(4E,6Z)−4,6−ヘキサデカジエニルアセテートを有効成分として含有することを特徴とするカキノヘタムシガの交信攪乱剤。
It is a communication disruptor of the kinoko potato moth that disrupts the communication between males and females by the sex pheromone of the oyster moth, and lowers the mating rate,
(4E, 6Z) -4,6-hexadecadienyl acetate containing as an active ingredient a oyster leaf moth communication disruption agent characterized by the above-mentioned.
(4E,6Z)−4,6−ヘキサデカジエナール、及び(4E,6Z)−4,6−ヘキサデカジエン−1−オールのいずれか一方を有効成分としてさらに含有することを特徴とする請求項1に記載のカキノヘタムシガの交信攪乱剤。   Any one of (4E, 6Z) -4,6-hexadecadienal and (4E, 6Z) -4,6-hexadecadien-1-ol is further contained as an active ingredient. Item 2. The turbulent communication disrupter of Paramecium serrata according to Item 1. 前記(4E,6Z)−4,6−ヘキサデカジエニルアセテートを80.0重量%以上、99.0重量%以下、(4E,6Z)−4,6−ヘキサデカジエナール及び(4E,6Z)−4,6−ヘキサデカジエン−1−オールのいずれか一方を1.0重量%以上、20.0重量%以下含有してなることを特徴とする請求項1に記載のカキノヘタムシガの交信攪乱剤。   The (4E, 6Z) -4,6-hexadecadienyl acetate is 80.0 wt% or more and 99.0 wt% or less, (4E, 6Z) -4,6-hexadecadienal and (4E, 6Z 2) 6,6-hexadecadien-1-ol is contained in an amount of 1.0% by weight or more and 20.0% by weight or less. Agent. カキノヘタムシガの性フェロモンによる雌雄間の交信を攪乱し、交尾率を低下させるカキノヘタムシガの交信攪乱方法であって、
(4E,6Z)−4,6−ヘキサデカジエニルアセテートを80.0重量%以上、99.0重量%以下、(4E,6Z)−4,6−ヘキサデカジエナール及び(4E,6Z)−4,6−ヘキサデカジエン−1−オールのいずれか一方を1.0重量%以上、20.0重量%以下含有してなる交信攪乱剤を圃場に散布することを特徴とするカキノヘタムシガの交信攪乱方法。
A method for disrupting the communication of the oyster leaf moth, which disrupts the communication between the male and female by the sex pheromone of the kinkin moth, and reduces the mating rate,
(4E, 6Z) -4,6-hexadecadienyl acetate is 80.0 wt% or more and 99.0 wt% or less, (4E, 6Z) -4,6-hexadecadienal and (4E, 6Z) Communication of oyster leaf moth characterized by spraying a field disrupter containing any one of −4,6-hexadecadien-1-ol in an amount of 1.0 wt% or more and 20.0 wt% or less Disturbing method.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63246301A (en) * 1987-03-31 1988-10-13 Shin Etsu Chem Co Ltd Control of vermin by disturbing communication
JPH0665007A (en) * 1992-08-19 1994-03-08 Shin Etsu Chem Co Ltd Method for controlling pink bollworm by disturbance of communication thereof
JP2001120146A (en) * 1999-08-13 2001-05-08 Shin Etsu Chem Co Ltd Method for disturbing and controlling communication of insect pest

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63246301A (en) * 1987-03-31 1988-10-13 Shin Etsu Chem Co Ltd Control of vermin by disturbing communication
JPH0665007A (en) * 1992-08-19 1994-03-08 Shin Etsu Chem Co Ltd Method for controlling pink bollworm by disturbance of communication thereof
JP2001120146A (en) * 1999-08-13 2001-05-08 Shin Etsu Chem Co Ltd Method for disturbing and controlling communication of insect pest

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