JPH03215402A - Disturbing agent of mating behavior of plusia nigrisigna - Google Patents

Abstract

PURPOSE:To obtain a preparation for disturbing mating behavior of male imagoes of Plusia nigrisigna to prevent multiplication thereof, comprising Z-7- dodecenyl acetate and Z-7-dodecenol as active ingredients. CONSTITUTION:The title preparation comprising Z-7-dodecenyl acetate and Z-7-dodecenol in the ratio of (97:3)-(3:97) [preferably (80:20)-(20:80)]. The preparation may be mixed with sex pheromone constituent component of other insect, sex attractant, antioxidant, ultraviolet light absorber, etc. In order to maintain release of active ingredients for many hours, preferably the preparation is packed into capillary, bag made of laminated film or container such as capsule comprising a plastic such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer or polyvinyl chloride having release amount-controlling function and used.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention disrupts the mating behavior of male adult beetles of the Japanese cabbage moth, which damages vegetables such as cabbage, Chinese cabbage, burdock, lettuce, soybeans, carrots, parsley, and satsuma potatoes. The present invention relates to a mating behavior disrupting agent for the turmeric, which contains as active ingredients a sex phlegm and an attractant, and prevents and controls the proliferation of individuals.

(Prior Art) Along with diamondback moth and cabbage moth, it is well known as a major pest of vegetables in Japan. Many insecticides such as organophosphorus, carbamate, and steroid insecticides have been used for this control. However, these pesticides have a high risk of causing chemical damage or poisoning symptoms to the sprayer, and if spraying continues, insects with high resistance to the pesticide will appear, reducing the efficacy of the pesticide. Due to problems such as the risk of contamination, there has been a desire to develop non-toxic pesticides and cultivation methods that do not use pesticides.

One example of this is the recent development of a clean insect control method using artificially synthesized insect fetomitomes, which has already been put to practical use against tea leaf beetles, fruit trees' sink beetles and kosuka moths, and the diamondback moth, which damages vegetables. .

This insect pest control is effective only on target pests and is not only completely non-toxic to humans and other living organisms, but also has no residue in crops or environmental contamination risk, which is a problem that traditional pesticides have. This is a method that can solve the various problems that have arisen.

(Problems to be Solved by the Invention) An object of the present invention is to provide a mating behavior disrupting agent containing a sex pheromone and an attractant as active ingredients, which is effective for controlling the common pest known as a major pest of vegetables. It is something to do.

(Means for Solving the Problems) The present invention provides a method for disrupting mating behavior of A.
The gist thereof is to contain Z-7-dodecenyl acetate and Z-7-dodecenol in a ratio of 97:3 to 3:97 as active ingredients.

To explain this, the mating behavior disrupting agent of the present invention contains Z-7-dodecenyl acetate and Z-
It contains 7-dodecenol as an active ingredient, and the ratio of both ingredients is 97:3 to 3:97. Preferably, the ratio should be within the range of 80:20 to 20:80, and the effect will be poor outside this range.

In addition to the above-mentioned ingredients, the above-mentioned mating behavior disruptors include sex pheromone components and sex attractants of other insects that damage vegetables, such as armyworm moth, diamondback moth, Japanese armyworm, Japanese armyworm, tobacco moth, fall armyworm, and stinging nettle. may be added to disrupt the mating behavior of these insects at the same time as tamanaginuwaba, and examples of sexual fematome constituents and sex attractants for this purpose include, for example, Z,E-9.12-tetrade. force dienylacetate, Z
, E-9,1l-tetradedienylacetate, Z-
9-tetradecenol, Z-11-hexadecenyl acetate, Z-11-hexadecenol, Z-7-tetradecenyl acetate, Z-11-hexadecenal, Z
-9-hexadecenal, 11-dodecenyl acetate, n-dodecenyl acetate, Z-5-dodecenyl acetate, Z-9-tetradecenyl acetate, and the like.

In addition, these mating behavior disruptors include butylated hydroxytoluene, butylated hydroxyanisole, hydroquinone,
Vitamin E, N-2-octyl-N'-phenyl-P-
Antioxidants such as fluorinated diamine and 4-hydroxy-4
- An appropriate amount of ultraviolet absorber such as octoxybenzophenone may be added.

The mating behavior disrupting agent according to the present invention has the advantage that, in order to sustain the release of the above-mentioned sex phlegm and attractant contained as active ingredients over a long period of time, it is
No. 142202, No. 57-9705, No. -50901,
-72904, -156403, 5B-18360
No. 1, No. 59-216802, No. 60-215367, No. 61-202643, No. 62-195303, -2
23101, -258301, 63-22530
3 and 64-175402, Utility Model Application Publication No. 1987-
No. 51532, No. -51533, No. 61-43201.
62-122801 and 64-45974, thin tubes, laminate film bags, and capsules made of plastics having a release control function such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl chloride, etc. It is used by filling it into containers such as

(Examples) Hereinafter, specific aspects of the present invention will be explained using Examples and Comparative Examples, but the present invention is not limited to the description of these Examples.

Examples 1-4. and Comparative Examples 1-4. Inner diameter 0.8m
sustained-release body (Japanese Unexamined Patent Application Publication No. 1983-1999
(Refer to Publication No. 7-156403), one tube is filled with aluminum wire to make it easier to wrap around stakes and poles, and the other tube is filled with 0.5 of the sex pheromone substances listed in the table.
10 filled with wt% butylated hydroxytoluene as an antioxidant and sealed every 200 m.
A preparation with a length of 0 m was prepared. However, in Example 2 and Comparative Example 2, an ethylene-vinyl acetate copolymer (vinyl acetate content: 6%) was used instead of polyethylene as the material for the sustained release body.

The cabbage field for which planting was completed on July 4th was divided into 8 test plots, each having an area of 30 a and a shape similar to a square. In each test plot (Examples 1 to 4, Comparative Examples 1 to 2) except for the treated plot (Comparative Example 4), poles were erected at intervals of about 1 ion from one end of the field ridge to the other, and the height of the poles was 401 cm. The ridges were stretched while wrapping each of the preparations shown in the table at the positions shown in the table. This work was performed at intervals of 8 to 10 m in the direction perpendicular to the ridges. Insecticides were sprayed six times in the conventional control areas, and no treatment was applied in the non-treated areas.

Adhesive traps were set up in the center of all test plots, using virgin females of the Tamanaginuwaba as an attraction source, and the number of male adult Tamanaginuwaba attracted in each test plot was continuously surveyed until September 13th. This was used as a measure of how much behavior was disturbed.

The degree of disturbance to mating behavior was expressed by the mating disturbance rate derived from the following equation.

In addition, the release rate of each pheromone substance during the period was 13 (1
- 150+ng/10a・day, the dosage of the preparation is 1
00m/10a.

The test results are also listed in the table. Note that the symbols in the table have the following meanings.

Z-7-12-AC: Z-7-dodecenyl acetate Z-7-12-OH: Z-7-dodecenol Z-11
-16-AL: Z-11-hexadecenal Z-1
1-16-AC: Z-11-hexadecenyl acetate As seen from the table, Z-7-dodecenyl acetate and Z-7-dodecenol are effective at a ratio of 97:3 to 3:97. All of the preparations containing the ingredients encapsulated in polyethylene tubes showed a high communication disruption rate of over 95%, and it was confirmed that they had an extremely strong mating behavior-disrupting effect on red-bellied cockroaches.

(Effects of the Invention) The mating behavior disrupting agent of the present invention has an extremely strong effect on T. sinensis and is therefore effective in controlling it.

-7

Claims (1)

[Claims] 1. A mating behavior disrupting agent for A. chinensis, which contains Z-7-dodecenyl acetate and Z-7-dodecenol in a ratio of 1,97:3 to 3:97 as active ingredients.