JP3064114B2 - The spousal behavior disruptor of the chinmon hosoga - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agent for disrupting the gametogaming behavior of Kimmonhosoga, which disturbs the mating behavior of adult male Kimmonhosoga, which is an important pest of apples, thereby preventing the growth of individuals and controlling the adult.

[0002]

2. Description of the Related Art The main pests of apple orchards in Japan are peach moths, prickly beetles, and chinmonhosoga.
There are many places that are constantly occurring during the period until October, and it is a fact that control is conventionally performed using an organic phosphorus-based or pyrethroid-based insecticide about 5 to 10 times a year. However, these insecticides are at high risk of causing harm or poisoning to the sprayer, insects that are highly resistant to the insecticide will appear if spraying is continued, and their efficacy will be reduced. Therefore, there is a need for the development of non-toxic pesticides and cultivation methods that do not use pesticides.

As one of them, a communication disruption method using an artificially synthesized insect sex pheromone has attracted attention. In apple orchards, Shinicon (a pheromone preparation manufactured by Shin-Etsu Chemical Co., Ltd.) has been put to practical use for controlling peach sink moth. This sex pheromone control only works on target pests, not only with no toxicity to humans and other organisms, but also without the risk of persistence or environmental pollution in crops and with traditional pesticides This is a way to solve the problem.

[0004] (Z) -10-tetradecenyl acetate is already known as a communication disrupting agent for Kimmonhosoga using a sex pheromone. Also, JP-A-2-212404
As described in the official gazette, the use of a mixture of (Z) -10-tetradecenyl acetate and (Z) -11-tetradecenyl acetate to simultaneously disrupt the disturbance of cochlear bugs and Kimmonhosoga Pheromone compositions have been proposed.
However, the effects of these compounds due to disturbance of communication are actually insufficient and have not been put to practical use.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a spousal disrupting agent which is effective for controlling Kimmonhosoga, an important apple pest.

[0006]

According to the present invention, the agent for disrupting the gamete behavior of Kimmon hosoga is contained in a ratio of (E)-of 20:80 to 60:40.
It contains 4, (Z) -10-tetradecadienyl acetate and (Z) -10-tetradecenyl acetate as active ingredients.

As described above, communication disruption using sex pheromones has already been put to practical use in some pests. Although the mechanism of action of this communication disruption has not been clarified yet, since it acts on the target pest in a trace amount, determination of the composition of the sex pheromone component effective for communication disruption has a great effect on the practical use of communication disruption agents. The composition of the sex pheromone component of a communication disruption agent that has been put into practical use can be roughly divided into three. That is, the first uses the sex pheromone composition (trigger composition) of the target pest, and the second uses the first sex pheromone composition.
The third uses only components, and the third uses only the second and third components of the sex pheromone composition.

[0007] As a first example, the sex pheromone of the cotton beetle, the cotton main pest, (Z) -7, (Z) -11-
It is known as a 1: 1 mixture of hexadecadienyl acetate and (Z) -7, (E) -11-hexadecadienyl acetate, and is actually used for communication disturbance control. . In the second, the sex pheromone of Chahamaki, the main pest of tea, contains (Z) -11-tetradecenyl acetate,
Known as a 88: 9: 3 mixture of (Z) -9-tetradecenyl acetate and 11-dodecenyl acetate, (Z) -11-tetradecenyl acetate is used for controlling communication disturbance. Only used. The third one is the sex pheromone of the tea pest, Chanoco kakumon Hamaki, which is also a pest of tea.
63: 31: 4: 2 of (Z) -9-tetradecenyl acetate, (Z) -11-tetradecenyl acetate, (E) -11-tetradecenyl acetate and 10-methyldodecyl acetate.
However, only the second component (Z) -11-tetradecenyl acetate is used for communication disturbance control. On the other hand, the sex pheromone of Kinmonhosoga is described in Japanese Patent Publication No. 2-47977,
(E) -4, (Z) -10-tetradecadienyl acetate and (Z) -1
Known as a 10: 100 mixture with 0-tetradecenyl acetate.

Based on these facts, the present inventors have conducted studies on communication disruption by using the sex pheromone of Kimmon hosoga. As a result, the communication disruption of Kimmon hosoga belongs to any of the three types that have been put into practical use. No, (E)-
Using a 20:80 to 60:40, preferably 25:75 to 50:50 mixture of 4, (Z) -10-tetradecadienyl acetate and (Z) -10-tetradecenyl acetate, The present inventors have found that a natural sex pheromone composition, its first or second component, and an attractant component can not be used because of a small communication disruption effect, but they work more effectively than these.

In the use of the agent of the invention for dispersing the mating behavior of the chinensis, the sex pheromone component of other insects, for example, the sex pheromone component of Coleoptera (Z) is used.
-11-tetradecenyl acetate and geometric isomers of these components, such as (E) -10-tetradecenyl acetate and (E) -4, (E) -10-tetradecadienyl acetate May be added, or an appropriate amount of a stabilizer such as an antioxidant or an ultraviolet absorber may be added.

[0010] In order to maintain the sex pheromone substance contained as an active ingredient for a long period of time, the agent for disrupting mating behavior of the present invention is prepared by, for example, using JP-A-56-1422.
02, 57-9705, 57-50901, -72904, -156403
No. 58-183601, 59-216802, 60-215367, 61-
202643, 62-195303, -223101, -258301, 63
-22503 and 64-75402, polyethylene, polypropylene, thin tubes made of plastic having a release amount control function such as ethylene-vinyl acetate copolymer, laminated bags, filled into containers such as ampules Used.

[0011]

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 these descriptions. Examples 1 and 2 and Comparative Examples 1 to 4 Tables 1 and 2 for each of Examples 1 to 2 and Comparative Examples 1 to 3
As shown in (1), a mixture was prepared in which the mixing ratio of (E) -4, (Z) -10-tetradecadienyl acetate and (Z) -10-tetradecenyl acetate was changed, and Was added to a polyethylene tube having an inner diameter of 1.1 mm, an outer diameter of 2.2 mm and a length of 20 cm to obtain a sustained-release pheromone preparation. On the other hand, 1.8ha apple orchard is divided into 6 equal 30a pieces,
The above-mentioned sustained-release pheromone preparation was added to each section at a rate of 300
The books were set on May 11th. Comparative Example 4 is a control group by a conventional control in which no pheromone preparation was set.
We conducted a communication disruption experiment on Kinmonhosoga in each area, and
1 of each ward on Monday, July 10, August 3, and September 1
The control effect was determined by investigating the number of damage marks per leaf and the results are shown in Table 1. In the mixing ratios in the table, E represents (E) -4, (Z) -10-tetradecadienyl acetate, and Z represents (Z) -10-tetradecenyl acetate. In the pheromone preparation treatment area, chlorpyrifos insecticide on June 18, nicotine sulfate on July 2, and July
The spraying of the CYAP pesticide on the 17th was omitted.

[0012]

[Table 1]

Table 1 shows that Examples 1 and 2 have a high control effect. In Comparative Examples 1 to 3, the effects are recognized up to the second generation (for the survey on July 10), but the third to fourth generations (for the survey on August 3 and September 1) in which the density of Kimmonhosoga is high. Then, the control effect is reduced.

Example 3 Internal method: 3 cm × 5 cm, polyethylene / polyvinylidene chloride /
In a 102 μm-thick laminated bag composed of three layers of polyethylene, 30:70 of (E) -4, (Z) -10-tetradecadienyl acetate and (Z) -10-tetradecenyl acetate was added. 200 mg of the mixture is the sex pheromone component of the snake beetle
600 pheromone preparations containing (Z) -11-tetradecenyl acetate 100 mg were prepared. 60a apple orchard
The pheromone preparation was set on June 5 in one of the 30a groups, and the other was used as a control group by conventional control. A pheromone trap of Kimmonhosoga was installed at the center of each section, and a communication disruption experiment of Kimmonhosoga was started. The number of male mosquitoes attracted by this experiment was examined, and the results are shown in Table 2. In addition, each generation (1 to 4 generations),
480 leaves were arbitrarily taken from each plot, and the number of damage marks was examined to determine the control effect. The results are shown in Table 3. In addition,
No insecticide was applied to the pheromone preparation-treated area.

[0015]

[Table 2] *: Attraction inhibition rate (%) = (Number of control group attracted-Number of treated group attracted) x 100 / Number of control group attracted

[0016]

[Table 3]

As can be seen from the table, each generation has a high attracting inhibitory effect, and the number of damage scarcely differs from the insecticide-treated group (control group). .

[0018]

EFFECTS OF THE INVENTION The agent for disrupting spousal behavior according to the present invention is very effective in controlling Kimmonhosoga and is effective in controlling it.

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Suzuki 28-1, Nishifukushima, Oaza, Kushiro-mura, Nakakubijo-gun, Niigata Shin-Etsu Chemical Co., Ltd. Synthetic Technology Laboratory (56) References JP-A-2-212404 ( JP, A) JP-A-61-134347 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 37/06 A01N 63/00

Claims (1)

(57) [Claims] 1. An active ingredient comprising (E) -4, (Z) -10-tetradecadienyl acetate and (Z) -10-tetradecenyl acetate in a ratio of 20:80 to 60:40. A spontaneous disruption agent for the kinmonhosoga.