JPH08175910A - Poison bait agent for ant - Google Patents

Abstract

PURPOSE: To obtain a poison bait agent for ant capable of destroying an ant burrow by using 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4- trifluoromethylsulfinylpyrazole as an insecticidally active ingredient. CONSTITUTION: This poison bait agent for ants contains 0.001-90wt.% 5-amino-3- cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoromethylsulfin ylpyrazole as an insecticidally active ingredient. Substrates such as grains, e.g. wheat flour, corn starch or potato starch, saccharides, e.g. granulated sugar or honey, oils, e.g. butter or peanut oil, animal substances, e.g. a krill powder, perfumes such as a milk, binders, e.g. nitrocellulose, solvents for wetting, e.g. glycerol or gelling agents, e.g. gelatin are used in addition to the insecticidally active ingredient. The poison bait agent can be used as a powdery, a granular, a jellylike or a liquid material by using the substrates. Thereby, the poison bait agent is capable of controlling Formica japonica Motschulsky, Tetramorium caespitum (Linnaeus), Lasius niger (Linnaeus), Monomorium pharaonis Linne, etc.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a bait for ants.

[0002]

2. Description of the Related Art Conventionally, poison bait agents have been used for controlling cockroaches and the like. On the other hand, although poison bait agents for controlling ants are known, they are not always effective. In general, ants have a large number of birds in one nest, so it is more effective to bring poisonous bait into the ant's nest and destroy the entire nest, rather than killing each individual ant. It is necessary to satisfy various properties as described below, and there is no clue as to what is suitable as an insecticidal active ingredient that meets such conditions.

That is, when an insecticidal active ingredient having a repellent effect or an insecticidal active ingredient which is fast-acting and quickly kills the contacted ants, a poison bait is carried into the ant's nest to destroy the entire nest. I can't let you do it. In other words, it has no repellent activity and does not show immediate insecticidal activity by contact action,
Moreover, it was necessary to find an insecticidal active ingredient having high food toxicity to ants.

[0004]

The present invention is to solve the above-mentioned problems and is a compound described in JP-A-63-316771, 5-amino-3-cyano-1-.
(2,6-Dichloro-4-trifluoromethylphenyl) -4-trifluoromethylsulfinylpyrazole [hereinafter referred to as compound (I). ] Is provided as an insecticidal active ingredient.

The ant bait of the present invention usually contains 0.001 to 90% by weight of the compound (I) which is an insecticidal active ingredient, and other ingredients include, for example, grains such as wheat flour, corn starch, potato starch, and granules. Sugar, sugars such as honey, butter, oils such as peanut oil, krill powder,
Ordinary bait agents such as animal substances such as pupa powder, fragrances such as milk and onion, binders such as nitrocellulose, solvents for wetting such as glycerin and ethylene glycol, gelling agents such as gelatin, carrageenan and agar. It contains a base material used for. If necessary, additives such as antiseptics and antioxidants may be contained.

The poison bait agent for ants of the present invention may be a powder obtained by mixing the above-mentioned insecticidal active ingredient and the base material, or may be a granular material obtained by kneading and granulating with the addition of water. Good. Further, it may be a jelly-like material, a liquid material or the like. The bait agent for ants of the present invention may be placed as it is in a habitat of ants, a place where it is desired to exterminate ants, or may be placed in an appropriate container.

The ant bait of the present invention is effective against various types of ants, for example, black ants, black-tailed ants, black-necked ants, yellow ants, pearl ants, luscious ants, aphids, ants, giant ants, giant ants, giant ants, luriari, fire ants, carpenters. It is used to control ants.

[0008]

The present invention will be described in more detail with reference to the following examples. First, a production example of the poison bait agent for ants of the present invention will be shown. Production Example Compound (I) 0.01 parts by weight, wheat flour 30 parts by weight, pupa powder 20 parts by weight, peanut oil 10 parts by weight, granulated sugar 20 parts by weight and dextrin 19.99 parts by weight are mixed, and an appropriate amount of water is added and kneaded. The granules were extruded, dried, and pulverized to obtain granular bait for ants.

Next, a test example using the bait agent for ants of the present invention will be shown. In the following tests, the insecticidal active ingredient compounds (Compound A and Compound B) used for comparative reference are as follows. Compound A: 3-methyl-1- (2,6-dichloro-4-
Trifluoromethylphenyl) -4- (trifluoromethylthio) pyrazole [Compound described in JP-A-62-45577] Compound B: 5-amino-3-methyl-1- (2,6-dichloro-4-) Trifluoromethylphenyl) -4- (trifluoromethylthio) pyrazole [JP-A-61-26
Compounds described in JP8671]

Test Example 1 50 grains of the poison bait agent obtained in the above-mentioned production example were placed in a feeding place in a container in which 80 black ants were raised. One day later, the survival number of ants in the breeding container was examined. Further, the same test was carried out for the compound A or the compound B formulated in a poison bait according to the production example. As a result of the application of the bait for ants of the present invention, the number of surviving ants was 0, but when compound A or compound B was used, the number of surviving ants was 80. As a result, although compounds having repellent properties such as pyrethroid compounds are not originally suitable as the insecticidal active ingredient compounds of the ant bait, compound A or compound B which is an arylpyrazole compound of the same system as compound (I) Was also shown to be unsuitable.

Test Example 2 300 poison bait agents obtained in the above production example were placed around the nests of the black ant in the field. Immediately after installing the bait, 113 in 10 minutes
Head ants moved in and out of the burrow, but no ants moving in and out of the burrow were observed 2 and 7 days later.

[0012]

The ant bait for ants of the present invention is 5-amino-
3-Cyano-1- (2,6-dichloro-4-trifluoromethylphenyl) -4-trifluoromethylsulfinylpyrazole is used as an insecticidal active ingredient and exhibits excellent effects.

Claims (1)

[Claims] 1. 5-Amino-3-cyano-1- (2,6-
A poison bait agent for ants, comprising dichloro-4-trifluoromethylphenyl) -4-trifluoromethylsulfinylpyrazole as an insecticidal active ingredient.