JPS6129924B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel rodenticide that can utilize the ecological habits and propensities of rats.

[Conventional technology]

Conventional rodenticides include warfarin rodenticides,
Pivar-based rodenticides include warfarin (+) pival-based rodenticides, coumarin-based rodenticides, and other rodenticides that are commercially available. These are fast-acting and cumulatively toxic. When using these rodenticides, they are kneaded into poisonous steamed buns, or sprinkled on sweet potatoes, potatoes, fried sweet potatoes, bread, etc., and used as bait. That is, conventional rodenticides focus on feeding poisonous bait.

By the way, it is generally known that rats have the following ecological habits and propensities. Namely: (1) He has a habit of licking his hands and feet.

(2) They are very wary (3) When they move, they protect the sides of their bodies with structures, etc. (4) They create passages for themselves to move (create their own passages) (5) ) Build a clan and act (6) Continue to eat 1/2 of your body weight in food every day until you die. (You will eat 1/2 of your body weight in food).

[Problem that the invention seeks to solve]

Therefore, conventional rat poisons that ignore the above-mentioned ecological habits and propensities of rats have the following drawbacks.

That is, first, it is difficult to continuously feed rodenticides to highly alert rats, and when used for a long period of time, rats will avoid them and the rodenticide effectiveness will decrease. Second, conventional rodenticides are highly toxic and fast-acting (raticidal effects appear on the spot or within a very short period of time), and humans are often not affected by where rats die.
If the dead rat rots and dead rat rot occurs indoors,
Unfavorable in terms of environmental hygiene. Third, it is toxic to humans. Fourth, because conventional rat poisons are chemically stable, they are difficult to decompose in the bodies of dead rats, and there is a secondary danger to pets, natural enemies, etc. that dead rats pose. If a cat eats a dead mouse, the cat will also die.

For this reason, a rodenticide based on oxycoumarin, which has excellent cumulative toxicity and excellent repellency, has been developed as an effective solution to the problems of conventional rodenticides. Similarly, if rats ingested a large amount at once, they would avoid it due to its toxicity, causing the problem that the effects of the accumulated poison could not be fully exerted.

The purpose of the present invention is to use the habits and proclivities of rats to feed the rats without causing them to become wary, and to cause the rats to die slowly or gradually, and to achieve optimal environmental hygiene. It provides rat poison.

[Means and actions for solving problems]

The rodenticide of the present invention is a rodenticide using oxycoumarin as a main ingredient, which is prepared by mixing oxycoumarin with finely powdered talc at a ratio of about 1% to make a 1.0% stock, and adding a red coloring agent to wheat flour and baking it. This is made into bread crumbs and granulated in a flour mill to make red bread crumbs.Next, a small amount of chili pepper and a small amount of talc are mixed into this red bread crumbs, and the above 1.0% stock is added to increase the proportion of oxycoumarin to the whole. The conventional problems were solved by mixing the ingredients so that the content of the ingredients was 0.1% or less and forming the whole into a granule or powder form.

Oxycoumarins used in the present invention include the following.

3-(α-tetralyl)-4-oxycoumarin is most preferred, and others 3-(α-phenyl-ethyl)-4-oxycoumarin 3-(α-phenyl-n-propyl)-4-oxycoumarin 3-(α-phenyl-isoamyl)-4-oxycoumarin 3 -{α-(3′,4′-tetramethylene-phenyl)-ethyl}-4-oxycoumarin 3-{α-(defenyl)-ethyl}-4-oxycoumarin 3-{α-(P-nitrophenyl) -ethyl}
-4-oxycoumarin 3-{α-(P-carboxyphenyl)-ethyl}-4-oxycoumarin 3-{α-(3-acenaphthyl)-ethyl}-
4-oxycoumarin 3-(α.γ-defenyl-propyl)-4-
Oxycoumarin 3-(al.α-indanyl)-4-oxycoumarin and its derivatives, 6-chloro-3-(α-phenyl-ethyl)-
4-oxycoumarin 7-methyl-3-(al.α-tetrahydronaphthyl)-4-oxycoumarin 7-methoxy-3-(α-phenyl-propyl)-4-oxycoumarin etc. are used, and combination with carrier The optimal rate is 0.1% or less of the total.

Oxycoumarin is not acutely toxic, but is a cumulative poison that can lead to death if taken continuously for several days, and if the amount is less than about 0.1% of the total amount, it can be taken continuously for a long period of time and is not repellent.

Conventional rodenticides, which are fine powders, are easily dispersed by the slightest wind, but in the present invention, they are made into granules or powders, and since talc is mixed with oxycoumarin as a bulking agent, the talc is mixed with oxycoumarin. Oxycoumarin adheres tightly and talc is also mixed into the baked red bread crumbs, so the talc mixed with oxycoumarin adheres more firmly to the surface of the bread crumbs, and since the talc itself is heavy, it does not scatter. It becomes difficult. This talc also does not easily absorb water, which prevents the crumb from deteriorating due to moisture.

Bread crumbs, which are used as a food agent, are made from wheat flour, which is preferred by rats, and because the flour is baked,
The added aroma attracts rats, resulting in a high eating rate.Also, by mixing coloring before baking, it becomes one with the bread crumbs, and only the colorant scatters and sticks to clothes, floors, and other places. It does not stain or add color, and even if it does adhere, it can be easily removed because it is integrated with the bread crumbs.

In addition, the chili pepper powder prevents livestock from accidentally ingesting it due to its pungent taste, and also prevents rats from ingesting large amounts of the rodenticide of the present invention at once.This allows rats to eat a small amount almost every day. Moreover, its pungent taste makes it possible to further eliminate the repellency caused by poison.

Thus, if the rodenticide of the present invention is sprayed in areas where rats pass through, the rats will eat a small amount of the rodenticide each time, making it possible to kill them within a few days.

〔Example〕

Precisely weigh 100g of oxycoumarin, mix with 10kg of finely powdered talc of less than 300 mesh, and mix with a stirrer for 15 minutes. This is approximately 1.0% (strictly 0.99%)
Stock.

Next, the bread crumbs are made by adding a small amount of Red No. 102 (red coloring agent) to the wheat flour and then milled into suitable particles. The red bread crumb particles are made into large granules to prevent them from being scattered when mice run and to be eaten.

The method of making this red bread crumbs is the same as when baking regular bread: add a small amount of salt, sugar, and yeast to flour, add Red No. 102, and knead with an appropriate amount of water, then heat to 25-30℃ for 3-5 minutes. Leave it for some time to let the yeast ferment. Next, put it in a mold and bake it in an oven for 30 to 40 minutes at 180°C. After removing it from the mold, slice it into pieces about 1 cm thick. After drying, use a flour mill to make red bread crumbs of appropriate particles.

In addition, weigh 2 kg of the above 1.0% stock, add 17.7 kg of the above red bread crumbs, and 200 kg of chili powder.
g and 100 g of talc were added and mixed with a stirrer for 15 minutes to obtain a rodenticide in the form of granules or powder as a whole.

Next, the method of using the rodenticide of the present invention will be explained.

Rats are particularly sensitive to their ecological habits (when they act,
(e.g., they move while protecting the sides of their bodies with structures, create their own passages, etc.).
The rodenticide of the present invention may be sprayed under refrigerators, rat holes, the back of cargo, the four corners of warehouses, etc.).

Specifically, if two spoonfuls of the rodenticide of the present invention are sprayed at the above-mentioned arbitrary location, the rats will pass through the same location every day, and during this time, the rats will eat the rodenticide or attach it to their limbs. By licking their hands and feet due to their habit, the main agent is naturally accumulated in the body.

The minimum lethal dose of oxycoumarin for rats is approximately
The rodenticide of the present invention is 0.9 mg, and if the rodenticide of the present invention is ingested in small amounts for several days in a row, in total about 1 g, it can cause death. In this case, since chili pepper is added, it is possible to prevent one mouse from eating all the rodenticide, so that the rodents can eat the rodenticide of the present invention almost equally.

The situation after spraying was as follows.

(1) No superficial changes were observed in the mice for 1 to 2 days.

(2) After 3 to 4 days, the following initial symptoms appeared.

Internal bleeding occurs in the body, and a tendency to seek water is observed, and the animal's eyesight also deteriorates, brain cells are destroyed, making it unable to make sharp movements, and it is seen walking slowly even in places where there is a presence of people. It was done.

(3) Five to six days later, they starved to death in a bright place. In particular, the mice that died were in a dehydrated state.

〔Effect of the invention〕

As is clear from the above explanation, the present invention exhibits the following excellent effects.

(1) By baking wheat flour and making it into bread crumbs, it is possible to increase the palatability of rats and increase their eating rate.

(2) By adding a small amount of chili pepper to bread crumbs, which have a strong palatability, it is possible to prevent rats from eating a large amount at once, and to effectively exert the accumulated poison of oxycoumarin. It is possible to eliminate the repellency caused by toxicity, and it is possible to feed rats a small amount continuously every day without making them feel toxic.
It can exert a rat-killing effect over a long period of time without arousing alarm in rats, which have a keen sense of vigilance.

(3) By diluting oxycoumarin with talc and adding red coloring agent to the flour before baking, oxycoumarin and red coloring agent alone will not be scattered around.

(4) Since it is possible to prevent the rats from eating a large amount at one time, the rats can be fed almost evenly, and the amount of rat poison to be killed can be reduced, making it possible to kill a large number of rats with a small amount.

(5) Since dead rats are starved and dry, they do not decompose and are very desirable in terms of environmental hygiene. They bring good results to environmental maintenance and do not affect the human body. Furthermore, dead rats are killed by rat poison. Pets that eat this pose no secondary danger to their natural enemies.

(6) There is no drug contamination in people's living areas, making it the safest.

Claims (1)

[Claims] 1 In rodenticides that use oxycoumarin as the main ingredient, approximately 1% oxycoumarin is added to finely powdered talc.
Mix at a ratio of Mix chili peppers with a small amount of talc, add the above 1.0% stock, and increase the proportion of oxycoumarin to the total.
A rodenticide characterized by being mixed to a concentration of 0.1% or less and in the form of granules or powder as a whole.