JP2001031512A - Production of drink insecticide of aqueous solution of boric acid against cockroach and its container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cockroach expellant sustaining a chemical effect, having no repellency, a slight influence on the environment and high safety. SOLUTION: Water is added to an aqueous solution of boric acid prepared by taking advantage of solubility of 3-4% boric acid in water at 20 deg.C and 30% at 100 deg.C and dissolving boric acid in water to prepare about 2% aqueous solution of boric acid. A small amount of fruit juice and an attractant are added to the aqueous solution to give the objective drink insecticide of the aqueous solution of boric acid against cockroach of exclusive use which pays attention to drinking water indispensable for maintenance of life of cockroach, makes cockroach suck and drink the insecticide to death without any resistance due to no repellency in spite of slow release, has a raised extermination effect and high safety and no influence on the environment due to a natural substance having low toxicity and is expected to have a preventing effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of cockroach control, which is a food which is an essential element in the maintenance of cockroach life,
Focus on drinking water in temperature, hiding place, drinking water, dissolve boric acid in water to make boric acid aqueous solution, add a small amount of juice and attractant substance and mix and make it Formulation of pesticides.

[0002]

2. Description of the Related Art Conventional methods for controlling cockroaches include direct spraying, smoking, and transpiration of insecticides, combined use of attractants and traps, and poisons and repellents such as cockroaches. Methods and the like are known. At present, organophosphorus pesticides are the mainstream method of spraying insecticides, they are effective only if they are directly applied to cockroaches or directly into the body by touching insecticides, and those that are hidden in gaps and shadows can not be eliminated .
The attractant, the trap, the sticky trap, etc. can eliminate those that have entered the trap and those that have adhered to the adhesive, but have no effect if dust adheres or gets wet in the long term. Cockroach dango does not eat all cockroaches where there is abundant food, and if used for a long period of time, the surface will harden, deteriorate and the control effect will decrease, and some poisons will have resistance and repellency Some can.

[0003]

In the case of German cockroaches, females lay three to four times during the lifetime of 10 months, if there are several surviving cockroaches. One to 50 eggs are laid in one pod sheath, hatching and at the same time hatching, it becomes an adult in about 2 months and starts laying eggs. This increase is not a ratio of rat calculation, so the medicinal effect is sustained Therefore, a cockroach repellent that has no repellency, has little effect on the environment, and is highly safe has been desired.

[0004]

In order to solve the above-mentioned problems, the present pesticide focused on drinking water for cockroach life support, and as a result of various experiments, conducted an experiment in which boric acid aqueous solution was used as drinking water. As a result, the cockroach drank the boric acid aqueous solution without resistance, and even if it was placed at the same time as water, there was no repellency and a sufficient insecticidal effect was obtained.

[0005] When a boric acid aqueous solution is used for a long period of time, repellency and resistance do not occur. As a result of experiments on rearing cockroaches, repellency and resistance do not occur. I knew something.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION

[0007]

[Example 1] Boric acid has been recognized for its insecticidal effect on cockroaches for some time. However, the following experiment was conducted to determine the insecticidal effect in the state of a boric acid aqueous solution, the insecticidal effect due to differences in concentration, safety, and economy. Was done.

A breeding box, height 18 cm × length 28 cm × width 1
Put the butter on the inside of the 8cm upper 5cm to prevent the cockroach from escaping, put the dambo wool folded into a bellows, which will be the hideout of the cockroach, put the drinking water and food in the 50cc container, then put the cockroach Two days later, the following experiment was conducted by a method in which 50% of an aqueous solution of boric acid having a concentration of 1% to 4% was placed in the same container as water and juxtaposed.

[0009] In the breeding box A, adult German cockroaches 1
0 animals and 10 larvae are placed, and food, water and a 1% aqueous solution of boric acid beverage insecticide in the same container as water are juxtaposed, room temperature 20 ° C.
In parallel, 10 adult German cockroaches and 10 larvae were placed in a breeding box B in the same manner as in A, and bred only with food and water.

In the breeding box A, dead insects were observed on the 5th day from the start of the experiment, and all deaths were confirmed on the 21st day. In the breeding box B, no dead insects were confirmed even after 21 days. In addition, from the results of the experiment, it was confirmed that the boric acid aqueous solution insecticide drinks without repelling even if there is drinking water nearby, and it is not aggressive as a pesticide but does not have repellency It was confirmed that the drink was taken without caution, and that the extermination effect was high.

[0011]

Example 2 In order to confirm the results of Example 1 more finely, the following experiment was conducted by changing the concentration of the boric acid aqueous solution and changing the species of cockroaches. Breeding boxes A, B, C, D, E,
F, a hideout, water, and food were added to each, and two days later, the boric acid aqueous solution pesticide of each concentration was juxtaposed, and the experiment was started at the same time, except that F did not contain the boric acid aqueous solution pesticide. . In the breeding box of A, ten adult German cockroaches and 1% boric acid aqueous solution beverage insecticide. In the breeding box of B, five adult German cockroaches, five larvae, and a 1% boric acid aqueous solution beverage insecticide. In the breeding box of C, two adults and four larvae of black cockroaches and a 2% boric acid aqueous solution insecticide. The breeding box of D contains 10 adult German cockroaches and a 2% boric acid aqueous solution beverage insecticide. The breeding box of D contains five adult German cockroaches, five larvae, and a 4% boric acid aqueous solution beverage insecticide. The breeding box of F contained only five adult German cockroaches and five larvae.

The results of the days until all the cockroaches died in the actual test in Example 2 are as shown in Table 1 in the attached document.

As a result of the experiment, all the cockroaches in the breeding box provided with the boric acid aqueous solution insecticide died, and the beverage died if it had a concentration of 1% or more, but there was a difference in the time until death. There is, however, it takes a certain amount of time to die even if the concentration is darkened, this is 2%
It was confirmed from the fact that there was not much difference between the test results at the concentrations of 4% and 4%, and it was also confirmed that there was no difference in the efficacy depending on the type of cockroach.

[0014] The results in the test room are judged to be sufficiently effective as a pesticide, but what is the effect of the field, was carried out at a Japanese confectionery factory in Kita-ku, Osaka, It is located in the basement and is fully air-conditioned, where the German cockroach is active even in winter. 1999 2
From the 5th of the month, a fixed point was set up in the factory and the attached Fig. 3 was installed. The mountain-shaped sticky trap was set for 7 days in February, 7 days in March, 7 days in April
A total of 6 times were arranged for 8 days in May, 8 days in May, 7 days in June, and 7 days in late June, and the transition of the extermination effect was examined. In the meantime, the remaining spraying of the organophosphorus pesticide, the direct spraying of the aerosol, and the spraying of the ultrafine particle space of the pesticide twice in late February and late March were carried out. The acid aqueous solution insecticide was placed in FIG.

The number of cockroaches in the mountain-shaped sticky trap was as shown in Table 2 below.

According to the conventional extermination method, the growth of cockroaches was suppressed or the weak crown was reduced, but it was hardly possible to say that the extermination effect was clearly obtained. Since the insecticide was disposed, the number of captured insects has clearly decreased. From this fact, it was determined that a 2% aqueous boric acid beverage insecticide was effective for controlling cockroaches.

There was a problem of how to actually perform the construction. A method of maintaining a state in which a liquid does not flow out and constantly sucking and drinking cockroaches. The sponge 2 or a cloth or the like is used to make the liquid bleed, so that the exudation stopper always keeps a wet state. The trapezoid 1 is used to make the container difficult to roll, and at the same time it can be installed horizontally or downward. The solution was developed by developing the exclusive container shown in Fig. 1 where the liquid does not flow out and the liquid always accumulates in the mouth of the bottle. By installing the exclusive container on the wall surface or the side of the machine, the adhesive tape is put on the side 3 of the exclusive container. Can be installed anywhere.

In FIG. 2, a bottle 4 has been developed exclusively for placing on a floor, and the tip of the pipe 5 is inserted into the stopper of the bottle, and slightly separated from the bottom of the receiving tray 6, so that the boric acid aqueous solution insecticide is always stored on the plate. Made, cockroach enters from slit 7 and can be drunk constantly.

[0019]

EFFECTS OF THE INVENTION A cockroach repellent that is safe and has a long-lasting efficacy has been desired.
By installing and placing it, you can expect prevention effects as well as extermination.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a dedicated container of the present invention.

FIG. 2 is an explanatory diagram of a floor-only bottle of the present invention.

FIG. 3 is a layout explanatory view of a test site of a Japanese confectionery factory.

[Explanation of symbols]

1 ····· Bottle 2 ················································ Floor-standing bottle 5 ··························· ··slit

Claims (2)

[Claims] 1. A method in which boric acid is dissolved in water at 20.degree.
Dissolve at 30 ° C using 30% melting, add water to the resulting boric acid water and adjust to make about 2% boric acid aqueous solution,
A method of producing a boric acid aqueous solution insecticide for cockroaches, which cockroaches prefer to drink regularly, by adding a small amount of fruit juice and an attractant thereto. 2. The insecticide for boric acid aqueous solution of a cockroach according to claim 1, wherein the insecticide for boric acid aqueous solution of a cockroach is constantly moistened to maintain the liquid level, and the cockroach is constantly attracted and drinkable. Agent container.