JPH045642B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to an attractant/feeding stimulant for American cockroaches. BACKGROUND OF THE INVENTION The American cockroach is the most well-known type of cockroach, distributed all over the world, and is the largest species of domestic cockroach in Japan. Conventionally, sex pheromones extracted from the feces and midgut of American cockroaches have been known as substances that have an attracting effect on this, as well as several monoterpenoid compounds (Japanese Patent Laid-Open No. 56-29502, 56
-30905, 56-30940, 56-79602, 56-30940, 56-79602,
56-79640, 56-87536, etc.), fatty acids such as myristic acid and palmitic acid, and their esters (Japanese Patent Publication No. 1987-320). Problems to be Solved by the Invention However, a large number of American cockroaches are required to extract sex pheromones, and monoterpenoid compounds require a complicated synthesis process. Because sex pheromones are excitatory, not only do they have a difficult time establishing themselves, but their activity tends to decrease significantly when both sexes coexist. [S.TAKAHASHI,
C.KITAMURA: Appl.Ent.Zool., 2(3), 133−
141 (1972)] In addition, fatty acids such as myristic acid and palmitic acid and their esters have weak attracting activity to American cockroaches, and are not effective in stimulating colonization or feeding when used alone, and require the addition of starch or sugars. And so. This not only increases the production cost of the attractant, but also increases the size of the attractant, making it inconvenient to use. Means for Solving the Problem As a result of intensive research to produce an effective cockroach attractant that does not have the drawbacks of these conventional cockroach attractants, the present inventor discovered that 5,6,7,8-tetrahydro-1 -Naphthol, 5,6,7,8-tetrahydro-2-naphthol, 1,2,3,4-tetrahydro-1-naphthol, 1-naphthol and 2-naphthol alone are specific to male American cockroaches. The present invention was completed based on the discovery that not only does it exhibit a strong attracting effect and a feeding stimulating effect, it also has good colonization properties, and its activity does not decrease even when males and females coexist. The present invention provides 5,6,7,8-tetrahydro-1-
naphthol, 5,6,7,8-tetrahydro-2
-naphthol, 1,2,3,4-tetrahydro-
This is an attractant/feeding stimulant for American cockroaches containing one or more selected from the group consisting of 1-naphthol, 1-naphthol and 2-naphthol as an active ingredient. The chemical structures of these compounds are shown below. 5,6,7,8-tetrahydro-1-naphthol 5,6,7,8-tetrahydro-2-naphthol 1,2,3,4-tetrahydro-1-naphthol 1-Naphthol 2-naphthol All compounds ~ are commercially available and can be easily obtained. The attractant/feeding stimulant of the present invention can be produced, for example, as follows. That is, one or more of the above compounds are mixed with a suitable solvent (e.g., a hydrophilic organic solvent such as acetone, methanol, ethanol, tetrahydrofuran, ethylene glycol, diethylene glycol, dimethylformamide; benzene,
Chloroform, ether, methylene chloride,
A solution dissolved in a lipophilic organic solvent such as n-hexane is transferred to a suitable carrier (for example, paper, cardboard, etc.).
An attractant/feeding stimulant can be produced by impregnating it into nonwoven fabric, cotton fabric, flannel, etc.) and drying it. In addition, one or more of the above compounds can be mixed into an adhesive, mixed into an adhesive together with an insecticide, mixed into a bait agent, etc., to create an attractive adhesive board or an attractive insecticidal sheet, respectively. It is also possible to manufacture products such as tapes, attractant baits, etc. In addition, one or more of the above compounds include emulsifiers, dispersants, penetrants, suspending agents, wetting agents,
The production of attractants and feeding stimulants in the form of oils, emulsions, wettable powders, powders, granules, pills, tablets, sprays, etc. by adding spreading agents, excipients, stabilizers, etc. I can do it. Effects The effects of the attractant/feeding stimulant of the present invention will be specifically explained below with reference to test examples. Test example 1 As test insects, 100 male and female (1:1) adult insects of American cockroach, black cockroach, Yamato cockroach, Japanese cockroach, brown cockroach, Japanese cockroach, and Japanese cockroach, male and female (1:1), 1 month after emergence, are required for one group. We prepared a group of Also, 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-
naphthol, 1,2,3,4-tetrahydro-1
-Naphthol, 1-naphthol and 2-naphthol were used as analytes. Evenly spaced on paper (Toyo Paper No. 2) with a diameter of 11 cm
Two 3.5 cm ² circles were prepared, and 1000 ml of acetone, a solution containing 1000 μg of one of the specimens, was applied to each circle and thoroughly air-dried to evaporate the solvent to prepare test paper. Each group of test insects was placed in a separate gauge (35 x 30 x 18 cm transparent polycarbonate container) and reared at 25°C under conditions of 12L-12D (12 hours light - 12 hours dark). After getting used to it, I put a separate test paper in each one. After 24 hours, the test paper was collected and its feeding status was examined. The specimen contains a specific attractant and
It showed a feeding stimulant effect. The results are shown in Table 1.

[Table] Test Example 2 The test insects were a single group of 100 American cockroach male adults, same female adults, same male larvae, and same female larvae of a single sex and age; A required number of groups (referred to as male and female coexistence groups) consisting of a total of 100 larvae of different sexes and ages (referred to as male and female coexistence groups) consisting of 25 larvae of the same male and 25 of the same female larvae were prepared. (Adults refer to those that have passed one month after emergence, and larvae refer to middle-stage larvae that have passed four months after hatching.) Also, 5,6,7,8-tetrahydro-1-naphthol, 5,6, 7,8-tetrahydro-2-
naphthol, 1,2,3,4-tetrahydro-1
-Naphthol, 1-naphthol and 2-naphthol were used as specimens. The treatment was carried out in accordance with Test Example 1, except that the applied amount of the specimen was 200 μg, and the degree of feeding was examined in cases where the American cockroach had a single sex and age, and in cases where both sexes coexisted. The sample exhibited specific attracting and feeding stimulating effects on male adult American cockroaches and their larvae. Furthermore, no decrease in activity was observed even when both sexes coexisted. The results are shown in Table 2.

[Table] Test Example 3 As test insects, 100 adult male American cockroaches one month after emergence were made into one group, and the required number of groups were prepared. Also, oleic acid, myristic acid, lauryl alcohol, pentadecanol, octyl alcohol, bornyl acetate, nerol, 2-hydroxy-
1-naphthoic acid, decalin, naphthalene, tetralin, 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-naphthol, 1-naphthol, 2-naphthol,
1,2,3,4-tetrahydro-1-naphthol and acetone and their combination with sucrose (1:
1) The mixture was used as a specimen. The samples were treated in accordance with Test Example 1, and after a 12-hour dark period, the test paper was collected and the feeding state of each sample was examined. 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-naphthol, 1-naphthol, 2-naphthol and 1,2,3,4-tetrahydro-1-naphthol are , showed a specific attracting and feeding stimulating effect on adult male American cockroaches even without the addition of sucrose. The results are shown in Table 3.

[Table] Same meaning.
Test Example 4 As test insects, the required number of adult male American cockroaches that had elapsed one month after emergence and male middle-instar larvae that had elapsed four months after hatching were prepared. Also, 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-
Using naphthol, 1-naphthol, 2-naphthol, and 1,2,3,4-tetrahydro-1-naphthol as specimens, circular test paper (diameter 1 cm) was prepared. Approximately 8.5 in diameter with liquid paraffin applied on the inside.
A circular test paper was placed at the bottom of a vinyl chloride cup with a height of approximately 10 cm, and one test insect was released. After a 12-hour dark period, the test paper was collected and the feeding marks were examined to determine the amount [BR ₅₀ (μg)] at which 50% of the test insects responded. The results are shown in Table 4.

[Table] Test Example 5 As test insects, 1100 male adult American cockroaches, one month after emergence, were prepared as one group. Also, 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-
naphthol, 1,2,3,4-tetrahydro-1
-Naphthol, 1-naphthol, 2-naphthol, and sucrose were used as specimens and treated according to Test Example 1 except that the coating concentration was changed, and the activity of each specimen was investigated. The sample showed much stronger feeding stimulation than sucrose. The results are shown in Table 5.

【table】

[Table] Test Example 6 (1) 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-naphthol, 1-naphthol, 2-naphthol and 1,2,3 ,4,-tetrahydro-1-naphthol as the sample, and a diameter of 1 in accordance with Test Example 4.
An attractant was prepared by impregnating 1,000 μg of each sample into circular paper (Toyo Paper No. 2) with a size of 1.5 cm. oil 10
A small dumpling-shaped attractant bait was prepared by adding some water to the mixture and kneading it. (2) In a room with an area of about 6 tatami mats, 60 adult male American cockroaches, one month after emergence, were placed one week before the test.
I released the head and kept it well fed and watered. Trap A in which the circular attractant is placed in the center of the adhesive surface of the cockroach trap described in Japanese Utility Model Application Publication No. 54-142679; Trap B in which the ball-shaped attractant bait (0.7 g) is placed in the center of the adhesive surface; A set of traps C with nothing placed on the adhesive surface were placed in this room, and after 24 hours, the number of cockroaches captured by each trap was determined. The experiment was repeated three times, and the average value was taken as the number of captured insects. The results are shown in Table 6.

[Table] Test Example 7 (1) (Sample bait) 5,6,7,8-tetrahydro-1-naphthol 1 part boric acid 10 parts Soluble starch 15 parts Potato starch flour 15 parts Water 59 parts 100 parts (Control bait) Boric acid 10 parts Soluble starch 15 parts Potato starch flour 15 parts Water 60 parts 100 parts Dumpling-shaped test baits and control baits of the above formulation were prepared by a conventional method. (2) One week before the test, 20 adult male American cockroaches, one month after hatching, and 20 same larvae, four months after hatching, were released into rooms A and B, each having an area of about 6 tatami mats, and they were given enough food. I gave him water. The sample bait prepared in the previous section (1) was placed in room A, and the same amount of control bait was placed in room B at five locations, and the number of dead animals was determined after 5 days. The results are shown in Table 7.

[Table] Effects of the Invention The attractant/feeding stimulant of the present invention exhibits a specific attracting/feeding stimulating effect on male American cockroaches, selectively killing only males and preventing fertilization of females. Therefore, it is extremely effective in exterminating American cockroaches. In addition, the attracting/feeding stimulant ingredient of the present invention shows a strong attracting/feeding stimulating effect on male American cockroaches even when used alone, and also has a good fixation effect. Since the attractant/feeding stimulant of the present invention does not require the addition of other substances, the production cost is low, and the dosage form does not need to be increased in size, making it convenient to use. Examples Hereinafter, the present invention will be specifically described with reference to Examples. Example 1 1 g of 5,6,7,8-tetrahydro-1-naphthol was added to about 200 ml of n-hexane and thoroughly stirred with a stirrer for about 10 minutes to dissolve. This solution is dispensed into 20cm wide, 50cm long, and thick pieces using a dispenser.
After uniformly impregnating a 0.1 cm nonwoven fabric, it was thoroughly air-dried until the n-hexane was volatilized. This impregnated cloth was cut into 0.5 cm width and 20 cm length using a cutting machine.
We manufactured an attraction/feeding stimulation tape. This tape can be used by placing it on the center of the adhesive plate of a container-shaped cockroach trap. 5,6,7,8-tetrahydro-2-naphthol, 1,2,3,4-tetrahydro-1-naphthol, 1-naphthol and 2-naphthol are also treated in the same manner to produce an attraction/feeding stimulation tape. did. Example 2 5,6,7,8.Tetrahydro-1-naphthol
10 g of boric acid, 100 g of boric acid, 150 g of soluble starch, 150 g of potato starch, and 590 g of water were mixed and molded into an appropriate size to produce a bait agent. Example 3 4 g of 1-naphthol, 20 g of white petrolatum, and 76 g of vermethrin were mixed, and this was made into a 5 cm width and length
It was applied to 200m of polyethylene tape. This was cut into pieces 5 cm wide and 20 cm long to produce insecticidal tape. Example 4 1 g of 5,6,7,8-tetrahydro-2-naphthol and 1 g of 2-naphthol were added to about 200 ml of acetone and dissolved by shaking well. Approximately 0.1 ml of this solution was impregnated into circular paper (Toyo Paper No. 2) having a diameter of 3 cm using a whole pipette, and then thoroughly air-dried with a cloth that evaporates the acetone. A simple cockroach trap was prepared by placing one sheet of this impregnated paper inside a glass cylinder (diameter 13 cm, height 18 cm) whose inside was coated with Vaseline to a width of 5 cm. Example 5 10 g of 5,6,7,8-tetrahydro-1-naphthol, 200 g of natural rubber, 780 g of tackifier, and 10 g of antioxidant were thoroughly kneaded, and this was mixed into a mold with a width of 9 cm and a length of 20 g.
It was applied with a roll onto a cm thick paper to produce an attraction adhesive board for a container-shaped cockroach trap.

Claims (1)

[Claims] 1 5,6,7,8-tetrahydro-1-naphthol, 5,6,7,8-tetrahydro-2-naphthol, 1,2,3,4-tetrahydro-1-naphthol, 1-naphthol and 2-naphthol Mowan cockroach attractant/feeding stimulant containing one or more active ingredients selected from the group consisting of: