JPH01265005A - Agent for exterminating fly - Google Patents

Abstract

PURPOSE:To provide a fly-extermination agent containing a hypochloric acid salt as an active component, free from repelling action against fly, capable of attracting fly for a period sufficient to develop the insecticidal effect and having strong insecticidal effect against fly. CONSTITUTION:The objective fly-extermination agent contains a hypochloric acid salt such as alkali metal or alkaline-earth metal hypochlorate (especially sodium or potassium, particularly sodium hypochlorate which is a food additive and can be used safely). The concentration of the active component is preferably about 50-2,000ppm. The extermination agent is an oral insecticide and effectively exterminates various kinds of flies (irrespective of the presence or absence of drug-resistance or sensitivity) at a low rate of application.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a fly repellent.

<Prior Art> Emulsions, oils, aerosols, and the like are known as fly repellents. These are insecticides that exert their insecticidal effects by entering through the respiratory route of the fly's spiracles and the skin contact route. However, a pesticide that kills insects through the oral route has not yet been put to practical use. The reason for this is that when flies ingest poisonous bait, many of the active ingredients have a repellent effect on the flies, and conversely, they have no attracting effect (reference: JP-A-62-26207).

<Problems Solved by Invention> In view of the current situation, the present inventors have earnestly investigated the development of an oral insecticide effective against flies, and found that chlorite can meet the purpose, and have developed the present invention. completed. In other words, chlorite does not have a repellent effect on flies, but has the effect of attracting flies for a sufficient period of time for the insecticidal effect to occur.
Furthermore, they discovered that it has a strong insecticidal effect on flies, and that a small amount of it can effectively exterminate a variety of flies.

<Structure of the Invention> To the finger temperature 2) used in the present invention, salts include alkali metal salts of chlorite, alkaline earth metal salts, etc., and among these, sodium and potassium salts of alkali metal salts. Used by the king.

Among these chlorites, sodium chlorite is a substance that has been designated as a food additive and has been shown to be safe.

There is no particular limit to the 4th degree, but it is 10 to 10.
000ppm, especially about 50~''2.01]Oppm, is used by mixing it with food attractants.Food attractants include hydrated carbons such as glucose and sugar, and organic substances such as amino acids, peptites, and proteins. Nutrient sources, various meat extracts, egg grains, milk powder, pupa powder, cereal flour, yeast, and other natural nutrient sources can be exemplified, and these can be used alone or in a mixture of two or more types in the present invention. In order to enhance the effect, sex attractants, attractants, insecticides, etc. may be added.The dosage form of the present invention may be a liquid, a solid, or a semi-solid.In the case of a liquid, In the case of solid agents such as water and alcohol, in the case of semi-solid agents such as clay minerals (kaolin) and minerals (calcium carbonate, etc.), they react with chlorites such as gelatin, aqueous solutions of CMC, etc. The desired dosage form can be prepared using substances that do not contain the drug.

When using the pesticidal agent prepared in this manner, the composition of the present invention may be placed, sprinkled, sprayed, applied, etc. in fly-infested areas such as poultry houses and cafeteria kitchens.

The types of flies to be exterminated in the present invention include:
Domesticae (house flies, etc.), Hematodae (e.g., the common house fly), Blowflies (e.g., golden flies), Drosophilidae (e.g., Sentinic flies), Drosophilidae (e.g., Drosophila melanogaster), Cheeseflies (e.g., cheese flies), Veracolaidae (Bellacolidae, etc.) It is effective against all types of flies, including flea flies (e.g., flea flies, etc.) and flea families (e.g., flea flies).

<Effects of the Invention> The insecticide of the present invention can attract flies for a sufficient period of time to exert its effect, and its insecticidal effect is also strong. The purpose can be effectively achieved regardless of whether the fly is resistant or susceptible to various types of flies.

The present invention will be explained below with reference to Examples.

Example Again, four main baskets each measuring 30 cm in width and height were prepared, and approximately 100 house flies (obtained from Denken-kei 9 Japan Environmental Health Center) were raised in each cage. In the basket of N081, 3 zero sugar water was put in a 200 ml Erlenmeyer flask, the liquid was sucked up with absorbent cotton, and the cage was fed through a cotton cap made at the top. No,
In the 2nd basket, 1.000ppm sodium chlorite aqueous solution, in the No.3 basket, 3'36 sugar, 1.000ppm
A mixed aqueous solution consisting of sodium chlorite was similarly fed to the NO34 cage using two Erlenmeyer flasks containing 3000 ppm sodium chlorite and 3000 ppm sodium chlorite.

Then, the progress was observed at 25° C. for 24 to 72 hours, and the following results were obtained.

Table 1 Insecticidal effect Numbers in the table represent the number of dead flies.

As seen in Table 1, the aqueous solution containing sodium chlorite showed an excellent insecticidal effect on flies. Among them, the results in No. 4 suggest that flies do not exhibit any repellent effect toward sodium chlorite.

Example 2 Instead of the house fly used in Example 1, an experiment was conducted using the Gunma house fly (from the Japan Environmental Health Center), which is resistant to pyrethroid and organophosphate insecticides, and the results shown in Table 2 were obtained. Got the results.

Table 2 Insecticidal effect Numbers in the table represent the number of dead flies.

As seen in Table 2, the insecticide of the present invention has a strong insecticidal effect even against the Gunma house fly, which is resistant to pyrethroid and organophosphorus insecticides.

Example 3 Fish meat extract Log with sodium chlorite 200+B,
Dissolve in a solution consisting of 100a+1 water. this? 890 g of kaolin was added little by little to the liquid 8 while stirring to obtain a semi-solid material (sample A). A semi-solid material (sample B) not containing sodium chlorite was prepared and an insecticidal test against golden flies was conducted. Prepare the two insect cages used in Example 1,
50g of sample A was placed on one side, and 50g of sample B was placed on the other side. 200 silver flies collected in the field were divided into two equal parts, each part was placed in an insect cage, and the progress was observed. The results are shown in Table 3.

Table 3: Insecticidal Effect As shown in Table 3, sample A was confirmed to have a strong insecticidal effect against golden flies.

Claims (1)

[Claims] A fly repellent containing chlorite as an active ingredient.