DE1815179A1 - A systemic insecticide with sterilizing activity - Google Patents

Description

A systemic Xne: eetlzld with a sterilizing activity

IXIe invention relates to a systemic Insectlzid with a sterilizing activity, which is low in toxicity Warm-blooded animals show and as active) component · dimethylmethylmercapto-methoxyphenyl-phosphate the formula

OCH.

-NS

and a sterilizing agent, Metöba (with alkyl groups) «{Pjpis- [i- (2-methyl) -aziridinyl] ~ phosphine oxide (CqH-οΝ, ΟΡ) in mixture with other ZiieStzen. ^{y 1Ö;}

In the case of the insoficides known up to now, the considerations were mainly directed to the inoe.otitide activity of all such. According to the present invention, however, a special type of systemic insecticide has been created? having a aynergistlschen effect of sterilizing and penetrating effect, together with inseotizider Akti vi fcEt.

009826/2081

The insecticide according to the invention shows an excellent one Inaectic activity when entering the inaectic bodies and acts extensively as gastric poison, contact poison, fumigant and sterilant.

The insecticide used in the present invention Compound can be represented by the following formula:

In the manufacture of the insecticide according to the invention the insecticidal compound with an appropriate amount of Meteba as a sterilizing agent, diethyl sulfoxide (CMSO) ale special Einl ringelttel and chlorinated terphenyl as Activity-extending agents, if necessary in a mixture with any other additives, such as solvents and Emulsifiers, mixed »With the addition of a suitable amount of chlorinated terphenyl as an activity-prolonging agent Means for the insecticide according to the invention can be the Reduce the liquidity of the insoticide and the adhesion to the body and the penetration into the body of insotes' to enhance.

In the insect of the present invention, toxicity is opposite Very low in warm-blooded animals, namely about I / 100 the toxicity of O.O-Dläthyl-p-nitrophenyl-thlophoephate. That is why the application and handling of the insotation is important very convenient and harmless.

The following examples explain the surprising effects of the insecticide having a sterilizing effect according to the present invention:

BAD ORIQJNAL

009826/2081

example 1
Sterility test

The test is carried out at home * by allowing a small amount of a 1/700 solution of the insoticicide according to the invention to drip onto it. The results show that a 10Q # -iger sterilization effect is obtained only with an amount of b mg. In addition, another experiment was carried out with 100 male and 100 female flies each with a mortality result of 2/5 of the male and 56.3 # of the female flies. This result shows that male insects are more sensitive to the present insect than female insects. With regard to the concentration of the insecticide, a 100% sterilization of the insects is obtained with a 1/700 solution, on the other hand 76% with a 1/800 solution.

Example 2

Insoticidal activities are used for the rice stem borer (ChiIo suppressalls) and the green rice chirp (Nephotettix clncticeps) examined.

Composition of the insecticide investigated

Active component Dimethylmethyl mercapto
methoxyphenyl «phosphate 50Ji 8terllisei * ung8-
middle Heteba 0.5Si Penetrants Dimethyl sulfoxide (DHSO) 15 55 Activity control
lengthening agent Chlorinated terphenyl 10 % solvent Naphtha solution with ^ el 20 %

BATH ORIGINAL

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Investigation procedure Place of investigation! Takamatou-oho, Kibi County Okayama Prefecture

Rice studied: Akebono variety
Trial fields: 2 separate rice fields, one of which

everyone owns "ine? lüoht" of 60 ο. Application: The application took place on August 29, 1965

by spraying (Sos Inaectiaida in

a quantity of 15 1 / 0.96 ar (1 are)

on the field.

Purpose: The rice stem borer test (Chilo suppressalis) was carried out by being 5 days after the Application (September 1) all stalks iuit discolored leaves in the test sections section and the number of certain dead insects.

The green rice chirp test (Nephotettix cinctloeps) did so carried out that one counts the number of surviving insects certain that were caught with the help of a safety net with 10 swings «

The ratings were immediately after and 1 and 5 days after the spraying carried out.

BATH
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Table I.
Insööfcissid test on the rice stem borer (ChUo suppresealla)

Chllo suppressalis

Examined Insectl2id and Concentration

Number of insects

mortality

Corri
yawed
mortality

Extent of eradication 1 day after spraying

1/700 diluted emulsion of the epfindimgagemaden Insotl oids

50 # dimethyl methylroeroaptoraethoxyphenyl phosphate

1/1000 diluted emulsion of the same insecticide »

1/1000 dilution emulsion of k6.6fr parathionethyl

Comparison trial

127

97.8

91.6 *

65.2

111

200

157

99.5

98.2

73.8

98.1

93.1

60.1

57.7

Note: Corrected mortality rates were calculated as high mortality rates were observed on the sections to which no insecticide has been applied.

The results of the foregoing investigation of the in-notes Effect show that the erfindungegeraäfle insotisld of the ineectlziden Effect of parathion ethyl superior 1st.

009826/20 81

Table II Investigation of the insecticidal effect on the green

(Nephotettix olnotlceps)

Relszlrpe

Examined domestic
seoticide and
concentration Number of survivors
insects 1 day
after this
BesrpÜ «
hen
30 Aug 5 days after
the test
hen
3- Sept Extent
the ver
repayment
1 day
after this
Review
hen 1/700 emul
sion of the
proper
Insectlzids with
Dirnethylraethy1 «
roercapto-raethoxy-
phenyl phosphate immediate
cash before
the Be
spray
29 Aug 5.0 7.7 65.2 1/1000 dil. Emul
sion of the same
Insectlzids 96.0 *, 3 9.0 60.1 1/1000 dil. Emul
sion of % 6.6] t
Parathionethyl 66.0 7.0 6.7 57.7 Comparative experiment 98.7 28.3 33.0 150.7

The results of the foregoing investigations of the insecticide Show effect that the inventive insoticide superior insecticidal effect to parathlon ethyl owns.

BATH ORIGINAL

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Claims (1)

- 7 claims 1 · A systemic insecticide with a sterilizing activity, the active components of which are dimethylmethyl »rcercaptc-methoxyphenyl-phosphate and fine sterilizing agent, Tris M- (2-raethylazirldiny5.]« -Phosphine oxide (CJH ₁ glUOP) of the following Forms I . κ "? - ^CH ? Meteba (which contains Alkylreate) in a mixture with additional agents. 2 »A systemic insecticide with sterilizing activity according to claim 1 »characterized in that« dimethyl sulfoxide (DMSO) to the Insectiaid as a special Means for penetration (penetration agent) is added. 3. A systemic insecticide with a sterilizing agent Activity according to one of the preceding claims, characterized in that - that chlorinated terphenyl is added to the insecticide is added as an active ingredient-prolonging agent. BATH ORIGINAL 009826/2081