JP2002316901A - Poisonous feed for cockroach - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a poisonous feed for cockroaches, blended with a sufficient amount of insecticidal component without inhibiting the attraction and eating behavior of the cockroaches. SOLUTION: This poisonous feed for the cockroaches is characterized by blending a solution obtained by dissolving the insecticidal component in 1 kind or >=2 kinds of solvents selected from the group consisting of a polyoxyethylenesorbitan fatty acid ester, a polyoxyethylene castor oil, a glycol derivative, a lactic acid ester and an N-alkylpyrrolidone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cockroach bait and, more particularly, to a cockroach bait containing a sufficient amount of insecticidal ingredients without inhibiting cockroach attraction and eating behavior.

[0002]

2. Description of the Related Art Poison bait has been known as one of the cockroach control methods. The poison bait exerts a controlling effect by ingesting insecticidal components into the body when the cockroach eats and dies. For this reason, some measures have been taken, such as adding an attractant so that cockroaches can sufficiently eat the poison bait.

As an insecticidal component of a poison bait, boric acid is often used. In recent years, a new insecticidal component having an excellent lethal effect on cockroaches has been developed and its practical use has been studied. Some of these insecticidal components are hardly soluble in oils or water used in poison baits, and some require the use of a separate solvent to incorporate the insecticidal components when formulating. .

In selecting a solvent, it is important to confirm that a sufficient amount of the insecticidal component can be dissolved and uniformly mixed with the poison bait.
It must be taken into account that depending on the solvent selected, there is a problem that cockroaches are attracted and eaten. However, at present, these conditions have not been sufficiently studied.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned current situation, and is intended to attract cockroaches,
An object of the present invention is to provide a cockroach poison bait containing a sufficient amount of insecticidal ingredients without inhibiting eating behavior.

[0006]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that the above-mentioned objects are satisfied by the following means, and have reached the present invention. (1) polyoxyethylene sorbitan fatty acid ester, polyoxyethylene castor oil, glycol derivative,
A cockroach poison bait comprising a solution in which an insecticidal component is dissolved in one or more solvents selected from the group consisting of lactate esters and N-alkylpyrrolidone.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The solvent used in the present invention does not inhibit cockroach attraction and eating behavior even when incorporated in a poison bait (for example, cockroaches do not take on repelling behavior). Insectic components that are hardly soluble or soluble in oils, water, etc. used in the agent are limited (hereinafter also referred to as poorly soluble) in a sufficient amount (at least 5% by weight).
Above) It has the characteristic that it can be dissolved.

The solution in which the insecticidal component is dissolved in this solvent is usually 0.1 to 30% by weight, preferably 0.1 to 30% by weight, based on the shape retention of the poison bait and the mixing ratio with the bait component. 5-2
It is preferred that the content be 0% by weight. The concentration of the insecticidal component dissolved in the solution may be appropriately set so as to be a sufficient amount when incorporated into the poison bait, in consideration of the lethal effect of the used insecticidal component on cockroaches. Usually 1 to 90
% By weight, and more preferably 5 to 30% by weight.

The solvents used in the present invention include polyoxyethylene sorbitan fatty acid ester, polyoxyethylene castor oil, glycol derivative, lactate ester and N-
One or two selected from the group consisting of alkylpyrrolidone
It is more than one species, and is preferably a liquid at ordinary temperature (5-35 ° C.), and specific examples include the following solvents. In addition, polyoxyethylene is also hereafter called POE. POE
As sorbitan fatty acid esters, monolauric acid P
OE (20) sorbitan, POE monooleate (2
0) Sorbitan, POE sorbitan monolaurate, POE sorbitan monooleate and the like; POE castor oil as POE castor oil, POE hydrogenated castor oil and the like; glycol derivatives as methyl propylene glycol, butyl propylene glycol, ethyl diglycol and the like Alkyl ethers of alkylene glycols; lactate esters include alkyl lactate such as ethyl lactate;
Examples of the alkylpyrrolidone include N-methylpyrrolidone.

[0010] In the present invention, it is suitable to mix and use a sparingly soluble insecticidal component such as fipronil and methoxadiazone. The insecticidal component is not limited to these poorly soluble ones, and a known insecticidal component may be used.
Specifically, organic phosphorus compounds such as diazinon, chlorpyrifos, fenitrothion, malathion, and trichlorfon; carbamate compounds such as carbaryl and propoxer; resmethrin, permethrin, cypermethrin, cyphenothrin, phenothrin, cyphenothrin, transfluthrin, Pyrethroid compounds such as imiprothrin; amide compounds such as sulfuramide; juvenile hormone compounds such as methoprene, hydroprene and pyriproxyfen; and boron compounds such as boric acid and borax.

[0011] In the present invention, the dietary component means a dietary component that can attract and eat cockroaches and an attractant component, and includes sugars, oils and fats, starches, and the like.
Proteins, amino acids, extracts of animals and plants, higher alcohols and the like can be used.

More specifically, fruit juice, honey, waste honey,
Maltose, fructose, sucrose, sugar cane, sugar, palatinose, trehalose, sucrose, sophorose, kojibiose, silanose, laminaribiose,
Nigerose, maltose, cellobiose, lactose,
Xylobiose, lycrose, gentiobiose, isomaltose, melibiose, rutinose, primberose, bicyanose, robinose, D-glucose, N
-Acetyl-D-glucomisan, D-galactose, D
-Galacturonic acid, D-mannose, D-xylose,
D-lactose, L-arabinose, D-glucuronic acid, D-glucomisan, actin, albumin, casein, fibrin, fibrinogen, keratin, globulin, hemoglobin, lactoglobulin, myosin, hepsin, ribonuclease, fish soluble and the like.

Further, locusts, grasshoppers, mantis, crickets, butterflies, moths, flies, krill, pupae, fish, livestock, shellfish, eggs, etc., edestin, zein, gliadin, peanuts, pumpkin seeds, wheat Bran, flour, corn, faba bean, soybean, wax, palm oil, cocoa butter, castor oil, olive oil, peanut oil, soybean oil, corn oil, rapeseed oil, sesame oil, cottonseed oil, flaxseed oil, kiri oil , Hemp oil, eno oil, butterfat obtained from mammals, fats such as body fat, whale oil, dolphin oil, sardine oil, herring oil, cod liver oil, shark liver oil, microbial fat, fats from yeast, bacteria, etc. No.

Examples of the attractant include flavors, extracts, and pheromones. Specific examples include onion flavor, maple flavor, chicken extract, beef extract, pork extract, periplanone compounds, alkylamines, cockroach feces and dried products, methylcyclopentenolone, vanillin, maltol, methyl maltol and the like.

In consideration of the shape preservability of the poison bait and the mixing ratio with the solution, the amount of the dietary component is usually 70 to 99.9% by weight, more preferably 80 to 99.5% by weight. It is good to mix.

The poison bait of the present invention may contain an antioxidant, a preservative, an ingestion inhibitor, a pigment, a fragrance and the like, if necessary. Specifically, erythorbic acid and salts thereof, dibutylhydroxytoluene, dl-α-tocopherol, nordihydroguaiaretic acid, methylhydroxyanisole, propyl gallate, guaiac butter, L-
Antioxidants such as cysteine salts; benzoic acid and its salts;
Salicylic acid, diphenyl, sorbic acid and salts thereof,
Preservatives such as dehydroacetic acid and salts thereof, parahydroxybenzoate, sodium propionate, potassium propionate, etc .; mistakenly preventing agents such as bitter and pungent components such as denatonium benzoate and pepper powder; yellow No. 4, red 102 No. 1, Blue No. 1 and the like, and dyes such as caramel; and flavors such as cheese flavor, butter flavor, peanut flavor, peach flavor, strawberry flavor, milk flavor and the like.

The poison bait of the present invention can be in the form of dry, wet, gel, sol, jam, jelly, gummy, etc.
In addition, the composition may be formed into a kneaded form, tableted, or mixed with a microcapsule or cyclodextrin as a desired formulation by holding the above-mentioned various components. Then, it may be arranged in a desired shape as described above and installed as it is in the cockroach's habitat or active area, or housed in a container, a catcher or the like.

The objects of the present invention include cockroaches such as black cockroaches, German cockroaches, and cockroaches.

[0019]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

Influence of cockroaches on attraction and eating behavior (1) Test method 50 mg of fipronil was dissolved in the solvent described in Table 1 to obtain a 1 ml solution. This solution and 100 g of a base composed of the following dietary components were uniformly blended to produce a solid cockroach poison bait. And each poison bait and control 30cm in length
It was juxtaposed with a pad having a width of 40 cm and a height of 25 cm at intervals of 10 cm. 200 German cockroaches or 30 black cockroaches were released there, and the number attracted for 30 minutes was observed. After 24 hours, the amount of the poison bait consumed was examined. As a control, a diet consisting of the base alone was used.

[0021]

Test Results The test results are shown in Table 1. In the table, as compared to the control, those with repellency were observed ×, there was no repelling, attraction, eating was less than the control △, there was no repelling, attraction was, the eating was slightly less than the control ○, no repelling was attracting, Eating is not different from the control. The sorbitan fatty acid ester (sorbitan monooleate) used for comparison is
The cockroaches repelled and attracted poisonous bait and inhibited eating behavior. On the other hand, in the case where the specific solvent in the present invention was used, German cockroaches and black cockroaches did not take repellent behavior, and although they differed in degree, they did not hinder the attraction and eating behavior. Among them, methylpropylene glycol and ethyl lactate showed good results for any cockroaches, and were found to be suitable solvents also in the present invention.

[0023]

[Table 1] Table 1 Test results Solvent German cockroach Blackhead cockroach Monolauric acid POE (20) sorbitan △ ◎ Monooleic acid POE (20) sorbitan ◎-POE monolaurate POE sorbitan △ ○ POE monooleic acid POE sorbitan △ △ POE castor oil ○ ◎ Methyl Fluoropropylene glycol ◎ ◎ Phytofluorophenol glycol ○ ○ Ethyl diglycol ○ ○ Ethyl lactate ◎ ◎ N-methylpyrrolidone ○ -Sorbitan monooleate × ×

Solubility of insecticidal components (1) Test method The solubility of the solvents described in Table 1 with respect to poorly soluble insecticidal components was examined. Fipronil is used as an insecticidal component.
The concentration that can be dissolved in 10 ml of the solvent at a temperature of 0 ° C. was examined.

(2) Test Results The sorbitan fatty acid ester (sorbitan monooleate) and purified water used for comparison could hardly dissolve fipronil. On the other hand, when the solvent of the present invention was used, at least 5% by weight or more of fipronil could be dissolved. Among them, the glycol derivative, ethyl lactate and N-methylpyrrolidone had high dissolving power, and N-methylpyrrolidone was able to dissolve up to 50% by weight.

[0026]

Industrial Applicability According to the present invention, a cockroach poison bait containing a sufficient amount of an insecticidal component without inhibiting cockroach attraction and eating behavior can be provided.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Chisuka Ito 3150 Sakakoshi, Ako-shi, Hyogo F-term (reference) 4H011 AC02 BA01 BB09 BB10 BC03 BC06 BC09 DA03 DG13

Claims (1)

[Claims] 1. A solution in which an insecticidal component is dissolved in one or more solvents selected from the group consisting of polyoxyethylene sorbitan fatty acid esters, polyoxyethylene castor oil, glycol derivatives, lactate esters and N-alkylpyrrolidone. A poison bait for cockroaches, characterized by comprising: