JPH04235902A - Attracting insecticide of slugs - Google Patents

Abstract

PURPOSE:To enhance collecting force of attracting insecticide of slugs and to increase use effects of insecticide. CONSTITUTION:Metaaldehyde, a main component of attracting insecticide of slugs, has collecting force of slugs and excellent insecticidal force. However, effects are not shown if slugs do not eat an insecticide. By taking advantage of polyphagia of slugs and properties of liking a material fermented with a microorganism, attracting force of slugs and insecticidal effects are increased by fermenting grain powder in a feed part of conventional attracting insecticide with a microorganism existing in the grain powder. In the production of the attracting insecticide of slugs, a saccharide is blended with a microorganism multiplication promoter, an insecticide, an excipient and water, and the mixture is kneaded, fermented at about 20-35 deg.C for 2-24 hours, molded and dried. The attracting insecticide of slugs much more attracts slugs than one not fermented and has excellent use effects.

Description

[Detailed description of the invention] [Industrial application field]

[0001]The present invention relates to an insecticide that attracts slugs and insect pests living in the same environment, which has a large attracting effect on slugs.

[Prior art])

[0002] Slugs are pests in agriculture and horticulture, and they cause enormous damage to a wide range of vegetables, garden plants, etc. The common method for exterminating these slugs is the use of metaldehyde agents, but some methods also use NAC agents in combination with the aim of killing slugs and pests such as pill bugs that live in the same environment. All of these are made by mixing wheat flour such as bran, adding sugar, and containing 3 to 6% metaldehyde, and are made as bait. Slugs and pests die when they eat them, but they do not get wet with irrigation or rainwater. The disadvantage is that the effectiveness is reduced.

[Problem to be solved by the invention]

[0003] Metaldehyde agents attract slugs and have excellent insecticidal effects, but they cannot be effective unless slugs, pill bugs, etc. eat the insecticide. The present inventor took advantage of the fact that slugs and other insect pests that live in the same environment are omnivorous and prefer corrosive materials, and that substances fermented with microorganisms attract slugs to the diet of conventional attractant insecticides. By fermenting these parts with microorganisms, the aim is to increase the attractiveness of slugs and increase the insecticidal effect.

[Means to solve the problem]

[0004] The present invention is directed to the production of slugs, which can be produced by adding insecticides such as metaldehyde and NAC agents alone or in combination to a diet characterized by fermenting grain flour with microorganisms present in grain flour. It is also an insecticide that attracts pill bugs, millipedes, etc. that live in the same environment as slugs.

[0005] A large number of microorganisms exist in grain flour, and the number is said to be 103 to 105. bacteria,
Both mold and yeast are present. The present inventor investigated the number of viable bacteria in several types of grain flour using the dilution plate culture method.
It was confirmed that 101 to 105 were present in g. By fermenting the grain flour with the microorganisms present in these grain flours, it is possible to create a feed that attracts slugs.

[0006] To prepare an insecticide to attract, add sugar, yeast extract, dry yeast, etc. as necessary to grain flour alone or in a mixture, and knead the mixture with insecticide, excipients, and water. 2
Ferment at 0 to 35°C for 2 to 24 hours. Temperature and time will vary depending on the type of flour used, the blend, and the capacity of the manufacturing equipment. Shape and dry.

[0007] Different types of flour have different types and compositions of microorganisms, but if the type of flour, blending amount, and processing conditions are constant, fermentation can be expected by the same group of microorganisms, and there will be little variation in quality. .

[0008] A patent application has been filed in 1990 Patent Application No. 2-194497 for producing an insecticide that attracts slugs using a diet characterized by fermentation with yeast.

Metaldehyde is a good insecticide to add to the diet when targeting slugs. If the purpose is to kill slugs and pill bugs, millipedes, etc. that live in the same environment, use metaldehyde and NAC agents or acephate agents together, or use insecticides such as NAC agents alone.

The attractant insecticide of the present invention can be used by scattering it in places where slugs, pill bugs, millipedes, etc. live.

[Effect]

[0011] Since the product fermented with microorganisms attracts slugs, the synergistic effect with the attracting and insecticidal action of metaldehyde makes it possible to attract more slugs and enhance the insecticidal effect. Furthermore, by using an insecticide such as NAC agent in combination, pill bugs and the like can be killed in addition to slugs.

[Example 1]

[0012] 25 parts by weight of rice bran, 25 parts by weight of wheat bran, 35 parts by weight of wheat flour, 6 parts by weight of glucose, 6 parts by weight of metaldehyde, and 3 parts by weight of excipient were mixed, water was added, and the product was molded and dried. B was obtained by fermenting the same formulation at 30°C for 12 hours, molding and drying. Height: 54cm, Width: 34cm
A pot inhabiting a slug was placed in the center of a plastic box measuring 15 cm and 15 cm in height. Place 0.2 g of A 10 cm away from the pot, place 0.2 g of B 10 cm away from the pot on the opposite side of the pot, contrast A and B, and place them in the evening. 12 hours later, slugs around each insecticide attractant. When I counted the number of deaths on side A, there were 3 on side B and 6 on side B. Fermentation using microorganisms is better.

[Example 2]

25 parts by weight of rice bran, 25 parts by weight of wheat bran, 35 parts by weight of wheat flour, 6 parts by weight of glucose, 6 parts by weight of metaldehyde, 3 parts by weight of excipients, and 2 parts by weight of dry brewer's yeast were mixed, and water was added. The product obtained by molding and drying was designated as C, and the product obtained by fermenting the same composition at 30° C. for 12 hours and molding and drying was designated as D. Using the same method as in "Example 1", C and D were placed in contrast in the evening, and 12 hours later, when we counted the number of dead slugs around each attractant and insecticide, it was 2 on the C side and 7 on the D side. . Foods fermented with microorganisms have better attractiveness than traditional products that are not fermented.

[Example 3]

25 parts by weight of rice bran, 25 parts by weight of wheat bran, 35 parts by weight of wheat flour, 6 parts by weight of glucose, 5 parts by weight of NAC
6 parts by weight of an insecticide containing 0% and 3 parts by weight of an excipient were mixed, water was added, the mixture was fermented for 12 hours, and the mixture was molded and dried to obtain an attractive insecticide. I sprayed 2g of this on a 1m2 area where slugs live, and counted the number of dead insects 12 hours later, and found 3 slugs, 9 pill bugs, and 4 millipedes. The product of the present invention can attract and kill not only slugs but also pests living in the same environment.

【Effect of the invention】

The slug-attracting insecticide of the present invention attracts more slugs than conventional ones, has a large number of dead insects, and also attracts and kills pests living in the same environment, resulting in excellent insecticide usage effects. ing.

Claims (2)

[Claims] 1. An insecticide that attracts slugs and pests that live in the same environment by mixing an insecticide into a diet that is characterized by fermenting grain flour with microorganisms present in grain flour. [Claim 2] "Claim 1" in which fermentation is carried out by adding a bacterial growth promoter such as yeast extract or dried brewer's yeast to grain flour, etc.
Attractant insecticides listed in .