CS275815B6 - A composition for controlling cockroach insects - Google Patents

Abstract

The solution concerns a means for the elimination of cockroach-like insects, especially the house roach, which contains 50 to 80 wt. 3 boiled yolks, 10 to 25 wt. % sugar, 10 to 25 wt. % boric acid (p.a).

Description

The invention relates to a composition for the control of cockroach insects (Blattidea), in particular the housefly (Blatella germanica).

So far, they are used for the elimination of these insects in our application in small, sprays (such as Biolit and Actelic), which have a high immediate effect, but do not work for a long time and therefore need to be repeated at short Sasha intervals. A similar foreign agent based on bendiocarb FICAM 80 W, a product of FBC Limited, has an almost immediate effect, but without a long-term effect. In addition, these agents are harmful to human, animal and plant health.

From the hitherto known world state of the art, in particular from the patent literature, U.S. Pat. No. 4,785,009 for repelling Russian house-based R-C 1 -C 3 alicyclic group.

JP 63-150 206 discloses a composition based on non-toxic essential oils of anise or laurel (Laurus nobilis) in the form of a spray for destroying Russian houseplants.

Another JP 62-195 301 describes a boron-based composition. It is actually a bait for Russian household, which contains boric acid, crystalline cellulose, edible oil, or fat, starch and coloring matter, or pigment, in the form of tablets.

IN/?/

The disadvantages of the hitherto known solutions lie in the toxicity and demanding handling of the active substances, as well as in the withdrawal of the customer by having to interrupt the operation. Subsequently, the spray must be removed by laborious manual work, not to mention the short-term and low effect of spraying substances.

These disadvantages are eliminated by the solution according to the present invention, the essence of which is a composition for the control of cockroach insects (Blattidea), especially the housefly (Blatella germanica), which contains 50 to 80 wt. % of cooked yellow, 10 to 25 wt. With sugar and 10 to 25 wt. % boric acid (H 2 BO 2 p.a.).

The effect of the solution is achieved by a suitable combination of the active substance with the attractant and the substance which tastes attractive to this insect. After ingestion, the insect loses its ability to orient and move in coordination, and death occurs in a short time. The composition consists of non-toxic components characterized by air stability and long-term action. It is produced in tablets of yellow color and sweet taste in a weight adapted to the requirements of the infected areas.

For toxicological evaluation of the composition, tests were performed to determine acute oral and dermal toxicity, primary skin irritation and primary eye irritation.

Acute oral toxicity:

males acute oral LD „^ 20,000 mg.kg body weight. ⁱⁿ -1 female acute oral 20,000 mg.kg body weight

Acute oral LD _50, ie the mean lethal dose could not be determined. No animal died after a dose of 20,000 mg.kg ^{1 body weight.} Higher doses cannot be applied. The substance was applied diluted with untreated water. Animals used: Wistar SPF (specific pathogen free) rats, males weighing 170 to 190 g, females weighing 160 to 180 g, 10 animals per group (5 males and 5 females). The composition did not cause either inflammatory changes at the application site (clipped skin of the animal's back) or other signs of toxicity. It is skinned, has no irritating effects on the mucous membrane of the eye, nor has an adverse effect on the environment.

The specific application of said composition is apparent from the following examples for lines, which, however, do not limit the scope of the invention.

Example 1

The cockroach insect repellent was prepared from 50 g of boiled yellow, 25 g of sugar and 25 g of boric acid. All components were mechanically homogenized at a room temperature of 15 to 21 ° C and placed in the places of the greatest occurrence of Russian house in residential areas. In the second apartment, at the same time, disinsection took place in the form of spraying with FICAM 80 W.

After a week in an apartment with three-component mixtures, 90% decimation of the previous state of infestation was recorded. In the second apartment, where the spraying took place, after a three- to four-day break, when the insects did not occur, he reappeared in large numbers.

Example 2

With the ratio changed, namely - in the case of the active ingredient (boric acid) to a ratio of 80:10:10, a longer period of death was recorded. The effect was directly proportional to the reduced dose of active ingredient, but demonstrable. It took a long time for the insects to begin to decline in numbers.

The possibility of using the present invention is wherever this insect is found in large quantities and causes mainly economic damage: in healthcare, food warehouses, grocery stores, schools, boarding schools, canteens, hospitality facilities, hotels, apartments, etc. ·

Claims (1)

PATENT CLAIMS A boron-based composition for the control of cockroach insects - Blattidea in particular - Blatella germanica - characterized in that it contains 50 to 80 wt. % of cooked yellow, 10 to 25 wt. She eats sugar, 10 to 25 wt. % boric acid.