JPS60231601A - Injurious insect repellent - Google Patents

Abstract

PURPOSE:An injurious insect repellent, containing a specific phenol as an active constituent, capable of exhibiting repellent effect even in a very small amount, paricularly powerful repellent effect on cockroaches, mites and ants, and effective against sanitary injuirious insects and unpleasant injurious insects, e.g. flies, cockroaches and ants. CONSTITUTION:An injurious insect repellent containing one or more phenols expressed the formula [R is >=6C alkyl, (lower alkyl-substituted) phenyl or cyclohexyl], e.g. p-phenylphenol, p-(1,1,3,3-tetramethylbutyl)phenol or o-cyclohexylphenol, as an active constituent. The above-mentioned compound is directly used or dissolved, dispersed or emulsified in a solvent, and the resultant solution, dispersion or emulsion is sprayed or applied. A carrier or adjuvant may be added thereof if necessary, and formulated into a suitable dosage form for used. The amount of the active constituent to be used is preferably 0.01-10mg/cm<2> on the surface in case a repellent zone, etc. is formed usually by coating, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an insect repellent. In particular, the present invention relates to a repellent that is effective against sanitary pests or unpleasant pests that have recently become a problem, such as mites, ants, cockroaches, insects, and mosquitoes.

[Conventional technology]

BACKGROUND OF THE INVENTION With changes in the living environment, housing structure, etc., the control of so-called unpleasant pests and sanitary pests has become a problem, and the development of effective repellents for these pests is desired.

The present inventors previously provided alkylphenols represented by (R''!d C, ~c, alkyl group, n-7~3) as pest repellents (Patent Application No. 57-7-52) .

[Problem that the invention seeks to solve]

Another object of the present invention is to provide higher alkylphenols such as alkylphenol and phenylphenol as pest repellents.

[Means for solving problems]

The gist of the present invention resides in an insect repellent having the general formula (wherein R is a phenyl group component which may be substituted with an alkyl group having 6 or more carbon atoms or a lower alkyl group).

To explain the present invention in detail, in formula (I), R is a group,
Examples include alkyl groups having up to about 9 carbon atoms such as nonyl groups.

Examples include phenyl groups such as a phenyl group, a methylcyclohexyl group, and a propylcyclohexyl group, in which R may be substituted, a phenyl group and a cyclohexyl group in which a cyclohexyl group or a lower alkyl group having 1 to 3 carbon atoms is substituted.

Preferred phenols include a main chain having a side chain of C.
4-Cs alkyl group, e.g. tei-methylpentyl, λ
, Kodimetelbutel, /, /,,7. J, t bar 1
-1 tylhexyl, coethylhexyl, co, --dimethylbexyl groups, or phenols having a linear alkyl group, a substituted or unsubstituted cyclohexyl group, or a phenyl group at the ortho position. Specifically, Fl p −
'I-Methylpentylphenol, p-3-ethylpentylphenol-k,p-;t,J') Methylbutylphenol, p-3,3-dimethylbutylphenol, P
'+/, 3.3-tetramethylbutylphenol, 0-5-methylhexylphenol, 0-6-methylhebutylphenol, θ--ethylhexylphenol,
o-(,t,j-dimethylhexyl)phenol, o
-(r,r-dume5-lhephter)phenol, 0-
(7-Me?Loctyl)phenol, p-cyclohexylphenol, 0-cyclohexylphenol, 0-(
J-methylcyclohexyl)phenol, p-phenylphenol, 0-phenylphenol, 0-(J-methylphenol, etc.).

The above-mentioned phenols may be used in the form of /li, or may be used in combination in amounts of a or more.

There are no particular restrictions on the method of using the phenol represented by the general formula (1) as a uyt repellent, and up to i may be used. Can be coated or coated. Also, if necessary, mix this with a suitable solid carrier,
Alternatively, it can be adsorbed or permeated into a formulation suitable for use and installed, and in this case, it can be heated and evaporated to increase the effect.

Since the amount of the active ingredient used in the present invention is extremely small, it exhibits a repellent effect, so there is no need to be particularly careful about the amount used. However, when creating a repellent zone or area by regular application, it is necessary to apply the active ingredient on the surface as an active ingredient. /C1/ is used.

More preferably, it may be used at 0, /-/■/cd.

The target pests of the present invention include cockroaches, ants, mosquitoes, and more! -Koku/ Ramsey mites - Effective against tobacco beetles, etc., and exhibits a particularly strong repellent effect against cockroaches, ants, and mites.

Example 1 Plastic container (!O x JO x height 3.tcm)
Place a circular filter paper with a diameter of l (1) in it, and place a plastic Petri dish with open sides (diameter?saw, height l!r) on top of it.
cm ) A device consisting of an upside-down Y and a LT beaker placed on top of it was placed facing each other, and water and food were placed at a position equidistant from each device. :t=<. A total of 10 german cockroaches, 4 adult males, 4 adult females, and 4 larvae, were released into a container, and left overnight for conditioning. - After leaving it overnight, diameter//CI
Prepare one sheet of circular filter paper of n, and treat the treatment amount lrv/c on one side.
The acetone solution of the repellent of the present invention or the control agent was added to 7? The beaker was coated with acetone and the other was coated with acetone only/lk (referred to as an untreated group). After each was air-dried, it was placed under a petri dish, and the number of cockroaches in the beaker was checked over time to evaluate the repellent effect. The results are shown in Table 1.

f? Example (Repellent experiment against black cockroach) Using the same experimental equipment as in Example 1, male adult black cockroach, adult female black cockroach, and A total of 60 larvae (-0 for each type) were released, and the repellent effect was evaluated in the same manner as in Example 1. The advantage of the repellent effect was nine rows as shown in Table-7.

Table 7 Evaluation method for repellent effect Example 3 A 01% acetone solution of the compounds of the present invention shown in Table 3 is applied to black paper (s x jcm ) by aS- (ly-/- as a repellent). In advance, place a petri dish (φ?
Place about 1 liter of a saturated medium for P. thaliana (dried yeast Ebios, manufactured by Asahi Beer Co., Ltd., as the medium) into a tube (crn). On top of this, place cardboard paper (1, x 4 on
), the above repellent treated black paper, and untreated black paper (
Gently stack and install in the order of 3 x 3 crn). After λ hours, the number of mites on the untreated paper was investigated to determine the repellent effect. The experiment was repeated several times.

Table 3 Example Cut into two parts and add the above acetone solution to one part.
, b+mty was applied uniformly and air-dried, and then fixed with adhesive tape so that the cut end was in contact with untreated P paper.

l; A polystyrene petri dish (ri αφ, 1 cr
The above-treated Okigami paper was placed on the bottom of the nh).

Ten adult tobacco beetles were released into the above-mentioned petri dish, and the location of the tobacco beetles was investigated after a certain period of time. The results are shown in Table 1.

In addition, when using an acetone solution with a drug opening degree of 1%, it corresponds to the amount of repellent used for waste/J 2cyst (-o, Koya/-) ◎ Table-l l Untreated side Yu treated side 3 No deaths Treatment side Yu treatment side a death

Claims (1)

[Scope of Claims] At least phenols represented by the general formula (wherein R represents a phenyl group optionally substituted with an alkyl group having 6 or more carbon atoms, a lower alkyl group, or a cyclohexyl group) A pest repellent containing one type of active ingredient.