JP3013933B2 - Mating behavior disrupting agent of tamanagin uwaba - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to cabbage, Chinese cabbage, burdock, lettuce, soybean,
The present invention relates to an agent that disrupts the mating behavior of Tamanaginiwawa, which contains a sex pheromone and an attractant as an active ingredient, which disrupts the mating behavior of the adult male Tamanaginawawa, which damages vegetables such as carrots, seri, sweet potatoes, and inhibits the growth of individuals. Things.

(Prior Art) Tamanaginubawa is well known as a major insect pest of vegetables in Japan, along with Japanese moth and white butterfly. Many pesticides such as organophosphorus, carbamate and steroid have been used for this control. However, these insecticides have a high risk of causing harm or poisoning to the sprayer, and if the spraying is continued, insects with high resistance to the insecticide will appear and their efficacy will decrease,
Because of problems such as persistence in crops and danger of environmental pollution, it has been desired to develop non-toxic pesticides and cultivation methods that do not use pesticides.

In recent years, clean insect control methods using artificially synthesized insect sex pheromones have been developed as one of them, and tea leaf bugs, fruit tree sink beetles and cosmosophila,
It has been put to practical use in Konaga, which damages vegetables.

This sex pheromone control only works on the target pest, not only with no toxicity to humans and other organisms, but also without the risk of persistence or environmental pollution in crops,
This is a method that can solve various problems of conventional pesticides.

(Problems to be Solved by the Invention) An object of the present invention is to provide a sex-matter disrupting agent containing a sex pheromone and an attractant as effective ingredients for controlling Tamanaginuwaba, which is known as a major pest of vegetables. Is what you do.

(Means for Solving the Problems) The present invention provides an active ingredient comprising Z-7-dodecenyl acetate and Z-7-dodecenol in a ratio of 97: 3 to 3:97 as a mating behavior disrupting agent for Tamanaginubawa. The gist is that it is contained as.

Explaining this, the mate disturbing agent of Tamanaginubawa according to the present invention is composed of Z-7-dodecenyl acetate and Z-7-dodecenyl acetate.
-7-dodecenol as an active ingredient, and the ratio of these two components is 97: 3 to 3:97, preferably 8: 3.
It is necessary to be within the range of 0:20 to 20:80, and the effect is inferior outside this range.

The spouse behavior disrupting agent, in addition to the above-mentioned components, furthermore, sex pheromone components and sex attractants of other insects that injure vegetables such as armyworm, moth moth, white-spotted armyworm, tossin armyworm, tobacco moth, armyworm, and nettle May be added to simultaneously disrupt the mating behavior of these insects, and the sex pheromone component and sex attractant for this purpose may be, for example, Z, E-9,12-tetradecadiene. Enyl acetate, Z, E-9,
11-tetradecadienyl acetate, 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.

Further, the spousal behavior disrupting agents include butylhydroxytoluene, butylhydroxyanisole, hydroquinone, vitamin E, N-2-octyl-N'-phenyl-
An appropriate amount of an antioxidant such as P-phenylenediamine or an ultraviolet absorber such as 4-hydroxy-4-octoxybenzophenone may be added.

In order to maintain the release of the sex pheromone and the attractant contained as an active ingredient over a long period of time, the spouse disrupting agent according to the present invention may be prepared by, for example,
142202, 57-9705, -50901, -72904, -1564
03, 58-183601, 59-216802, 60-215367, 61
-202643, 62-195303, -223101, -258301,
Nos. 63-225303 and 64-75402, Jpn.
Nos. 1532, -51533, 61-43201, 62-122801, and 64-45974, each of which discloses a polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and a release control function for polyvinyl chloride and the like. It is used by filling it into containers such as thin tubes made of plastics, bags made of laminated films, capsules and the like.

EXAMPLES Hereinafter, specific embodiments of the present invention will be described with reference to Examples and Comparative Examples, but the present invention is not limited to the descriptions of the Examples.

Examples 1-4 and Comparative Examples 1-4. Two polyethylene pipes having an inner diameter of 0.8 mm and an outer diameter of 1.6 mm,
A sustained-release body in the form of being parallel in the axial direction and joined at the surface
In one tube, an aluminum wire is sealed so as to be easily wound around a stake or a pole, and in the other tube, 0.5% by weight of butyl as an antioxidant is added to the sex pheromone substance shown in the table. Hydroxytoluene was added and filled to prepare a 100-m-long preparation sealed every 200 mm. However, in Example 2 and Comparative Example 2, a material using an ethylene-vinyl acetate copolymer (vinyl acetate content 6%) instead of polyethylene was used as the sustained release material.

The cabbage field that had been completely planted on July 4 was divided into eight test plots, each of which had an area of 30a and a shape close to a square. On July 14, a common control plot (Comparative Example 3) was untreated. Test sections (Examples 1 to 4, Comparative Examples 1 to 4) except for the test section (Comparative Example 4).
In 2), columns were erected at intervals of about 10 m from one end of the ridge to the other end of the field, and the respective preparations shown in the table were wound around the ridge at a position of 40 cm in height. This operation was performed at a distance of 8 to 10 m in a direction perpendicular to the ridge. In the conventional control area, the insecticide was sprayed 6 times, and in the untreated area, no treatment was performed.

In the central part of all test plots, an adhesive trap was set up using the virgin female of Tamanaginuwaba as an attraction source, and by continuously investigating the number of male adults of Tamanaginiwawa in each test plot until September 13, It was a measure of how much marital behavior was disrupted. The degree of disturbance to marital behavior was indicated by a communication disturbance rate derived from the following equation.

Also, the release rate of each pheromone substance during the period is 130 to 1
The dosage of the preparation was 50 mg / 10a.day, and the amount used was 100 m / 10a.

The test results are shown in the table. The symbols in the table mean the following.

Z-7-12-AC: Z-7-dodecenyl acetate Z-7-12-OH: Z-7-dodecenol Z-11-16-AL: Z-11-hexadecenal Z-11-16-AC : Z-11-hexadecenyl acetate As can be seen from the table, the formulation in which Z-7-dodecenyl acetate and Z-7-dodecenol are contained as active ingredients in a ratio of 97: 3 to 3:97 in a polyethylene tube, Also showed a high communication disruption rate of over 95%, confirming that it had a very strong effect of disrupting mating behavior on Tamanaginuwaba.

(Effects of the Invention) The agent for disrupting mating behavior of the present invention acts extremely strongly on Tamanaginuwaba and is therefore effective in controlling it.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Toshiaki Ihara 28-1, Nishifukushima, Oku-ku, Kutsugi-mura, Nakatsukushiro-gun, Niigata Pref. Shin-Etsu Chemical Co., Ltd. , A)

Claims (1)

(57) [Claims] 1. An agent for disrupting mating behavior of Tamanaginubawa, comprising as active ingredients Z-7-dodecenyl acetate and Z-7-dodecenol in a ratio of 97: 3 to 3:97.