DE2221794A1 - SCHAEDLING INHIBITORS - Google Patents

Description

FARBWERKE HOECHST AG formerly Master Lucius & Brüning

File number: HOE 72 / F 134

Date: May 3, 1972 Dr.BE/le

Pesticides

The invention relates to pesticides which, by a content of 1, 2, 3, k , 7, 7 ~ hexachlorbicyclo- ₍ / 2, 2, \ J- hepten- (2) -bis-zhydroxymethylene- (5 s 6) _ / -sulf it (common name: Endosulfan) of the formula

Cl H

^ / CH ₉ O _x
J CCl • S = OI

Cl

mixed with 2-sec. -Butyl-phenyl-N-methylcarbainate (Bassa) der formula

/ "Vo-Lh-ch.

CH ^{3 ΐτ}

HC ^{2 5}

Marked are.

Endosulfan is e.g. according to the German patent specification 1.015.797 and known from U.S. Patent 2,799,685. It is used as a pesticide, especially in fruits, vegetables and Agriculture is used against biting and sucking insects and in the forest against beetles, caterpillars and tree lice.

309846/1120

However, it has been shown that the action of the active ingredient mentioned I in some cases is insufficient to complete a Achieve pest extermination.

The active ingredient II e.g. from German patent specification 1,159,929 known, is mainly used to inoculate cicadas in rice growing applied.

It has now been found that mixtures of the active ingredient I with the active ingredient II bring about an excellent mutual complement in the sense of a real synergism, as can be seen from the following examples. Mixtures of 1 to k parts by weight of active ingredient I with 1 part by weight of active ingredient II each have proven to be advantageous.

^/ According to the invention, the active ingredient mixtures can be formulated as so-called wettable powders, emulsions, suspensions, dusts or granules in combination with solid or liquid carriers, with adhesives, wetting agents, dispersants and grinding aids. They can also be mixed with other insecticides, fungicides, nematocides, herbicides. The total content of active ingredient I + active ingredient II of the pesticides according to the invention is between 1 and 90% by weight »

309846/1120

EXAMPLES Ex iel A

A wettable powder which is easily dispersible in water is obtained, by

25 parts by weight of a mixture of active ingredient I and active ingredient II

in a ratio of 1: 1,

64 parts by weight of quartz containing caplin as an inert substance, 10 parts by weight of lignosulfonic acid potassium and 1 part by weight of ο1eylmethyltaurinsaures sodium as wetting agent and

Mixes dispersant and grinds in a pin mill.

Example B.

A dust that can be used as an insecticide well suited, is obtained by one

10 parts by weight of a mixture of active ingredient I and active ingredient II

in a ratio of 4: 1 and 90 parts by weight of talc as an inert substance

mixed and crushed in a hammer mill. Example C

An emulsifiable concentrate consists of

15 parts by weight of a mixture of active ingredient I and active ingredient

II in the ratio 3: 1,

75 parts by weight of cyclohexanone as a solvent and 10 parts by weight of nonylphenol (10 AeO) as an emulsifier.

example 1

Active ingredient I would be mixed with active ingredient II in acetone Mixing ratios 1: 1 and 3 ^ 1 dissolved, and of both

3 solutions containing active ingredients were each 1 cm on the lid and Evenly distributed at the bottom of Potri bowls. After the Acctons were used for 20 houseflies (Musca doniestica) each and (li (> effect at regular time intervals Iiont3.-olli.ert.

309846/1120

-4- 222179A

The dishes were set up in the laboratory at 20 C.

As can be seen from Table I, the mixture of the two active ingredients results in a clear synergism.

Table I.

, r. ·. , ^, * Act of fkonz ·,, ..., ^ _n . . ₀ /,

Active ingredient, " o / \ · killed flies m% after

I üew. 7 »ym hl Ή Ή acetone 1 2 3 ^

Conn. I + 0.0001 % ₍₎ . _{fi ß}

Verb. II 0.0001 % ^{U <lj 2Ü} ^ ^{5 b0 ö0}

Conn. I 0.0001 % 0 0 0 0

Link II 0.0001 % 0 0 0 0

Verb. I + 0.0003 % ₍ " _{} 1Q} » _{Q? Ρ l0Q} 'Verb. II 0.0001 ° / o ¹³ * ^{1} 10 3} ° ^{7j 10} °

Conn. I 0.0003 % 0 10 20 20

Link II 0.0001 % 0 0 0 0

Example 2

3 As indicated in Example 1, 1 cm of an acetone Solution which contained the active ingredients I and II in a mixing ratio of 2: 1, applied to the lid and bottom of Petri dishes. After the acetone had evaporated, 20 American cockroaches (Periplaneta amex'icana) were used and the effect was daily Controls determined. The dishes were set up in the laboratory at 20 ° C.

As can be seen from Table II, the mixture of the two active ingredients results in a clear synergism.

309 846/1120

Table IT.

Active ingredient active ingredient conc. % killed animals after i ^ ⁱⁿ -n ^ days

Verb. 1+ 0.0005 % _{(2. λ)} o ₀ 6o QQ

Comp. II 0.00025% ^{2 ' ^{1} 3} oO 99

Conn. I 0.0005 % 0 0 0

Link II 0.00025% 0 0 0

Example 3

Petri dishes lined with filters were placed in a dosing '' spray apparatus injected with equal amounts of aqueous dilutions of emulsifiable concentrates containing the active ingredients I and II in the mixtures 1: 1 or 4: 1 or alone in the respective proportions.

After the spraying, adults of red-leaf hoppers (Nilaparvata lugens) and the effect at the specified time intervals controlled.

As can be seen from Table III, the mixture of both results Active ingredients a clear synergism.

Table III

Active ingredient Active ingredient conc
(Wt.%) In
aq. Verd. . killed
i8 ^h animals after 100 Verb. I +
Verb. II 0.00006 % _(Λ ,
0.00006 % * l) 70 90 20th Verb. I 0.00006 % 0 20th 50 Verb. II 0.00006 % 30th 50 90 Verb. 1 +
Verb. II 0.00012 % (L.
0.00003 % ⁽ ' l) 30 70 30th Verb. I 0.00012 % 20th 30th 20th Verb. II 0.00003 %
30th 0
9846/1120 20th

Claims (2)

Claims X 1. Pesticides, characterized by a content of endosulfan in a mixture with 2-sec ♦ -butyl-phenyl-N-methyl-carbamate. 2. Pesticide according to claim (l), characterized by a content of 1 - k parts by weight of endosulfan in a mixture with 1 part by weight of 2-sec-butyl-phenyl-N-methylcarbamate. 309846/1120