DE1792329B - Insecticidal synergistic mixtures. Retired from: 1300725 - Google Patents

Description

Gypsy moth caterpillars (Lymantria dispar L.) after dosed animal treatment and 4 days Exposure of the larvae on treated forage plants.

The comparison with the one known today, under the same test conditions, is much smaller Concentrations of fully effective insecticides make the compounds tested here ineffective, which hardly justifies their economically justifiable use in practical pest control, especially clear.

Table I.
Ineffective carbamic acid esters

connection Chemical name

Pyrrolidine - N - carboxylic acid - (3 - methyl ^ao

5-isopropylphenyl) ester
Piperidine - N - carboxylic acid - (3.5 - dim-

ethylphenyl) ester
Benzyl NN -diallyl carbamate

^a 5 dodecyl-NN-diallyl carbamate

/ 9- (butoxy-ethoxy) -ethyl-N, N-diallyl-

carbamate
Ethylenimine - N -carboxylic acid octyl ester

2-propenyl-4-methylphenyl-N-methylcarbamate

35

The above compounds were used in admixture with the carbamate known to be effective

A. 5- (1-Isopropyl-3-methylpyrazolyl) -N, N-dimethylcarbamate

checked in different relations of the individual components. The example below is the synergistic one Effect of the mixtures according to the invention can be seen. The efficiency given in Table II relate to mean values from at least

two series of tests carried out under constant conditions.

example

S For testing the contact effect on stick insects (Carausius morosus Brunner) were each fifteen freshly moulted larvae IV for 3 seconds dipped in aqueous emulsions of the mixtures according to the invention, on filter paper from the still adhering Excess fluid freed and placed in a wire gauze cage on Tradescan shoots as fodder plants Set with daily effectiveness controls between dead, seriously injured, if only on Touch stimulus with disordered extremity movements

is responsive as well as easily damaged and normal surviving animals. The test results calculated according to Abbott can be seen from Table II.

Table II

Contact effect of synergistic mixtures

on Carausius morosus Brunner (larvae FV)

after diving contact

connection Active ingredient Percentage effect after 2 3 4th 5 (Designation concentra 1 Days or no.) tion in ° / o 10 10 10 12th A. 0.05 7th 42 56 60 67 0.25 33 67 83 93 100 0.5 45 Synergy stic Mixtures out 40 50 50 60 A + 1 0.06 + 0.06 40 50 60 60 60 A + 2 0.06 + 0.06 40 77 80 80 80 A + 3 0.06 + 0.06 63 47 50 50 60 A + 4 0.06 + 0.06 37 43 50 50 60 A + 5 0.06 + 0.06 33 37 43 43 45 A + 6 0.06 + 0.06 30th 53 60 60 67 A + 7 0.06 + 0.06 50

Claims (1)

Patent claim ^d 5 ^r prior application Mixtures of insectic ^v ' zidally active 5- (l-isopropyI-3-metaylpyrazolyI) - An insecticidal composition containing a synergistic Ν, Ν-dimethylcarbaraat with certain se unGemisch carbamates, characterized overall wksamen carbamates an essential and in wetlands ke η η ζ η et verifiable that it is ^"5 show ^{Fä en} significant synergism. The invention thus relates to insecticides Pyrroh'din-N-carboxylic acid-ß-niethyl-S-iso means which contain the above carbamate in a mixture with propylphenyl) ester, the carbamates No. 1 to 7 according to Table I. Piperidine-N-carboxylic acid (3,5-dimethylphenyl) - the synergistic mixtures according to the invention esters, io can be used alone or together with other pests Benzyl-N.N-diallyl carbamate, control agents such as insecticides, acaricides Dodecyl-N.N-diallyl carbamate, or fungicides, are used. The access / 3- (Butoxy-ethoxy) -ethyl-N, N-diallyl carbamate, preparation takes place in a plant protection product Ethylenimine-N-carboxylic acid octyl ester or the usual form using liquid or solid 2-propenyl- ^ methylphenyl-N-methylcarbamate 15 carriers. Suitable liquid carriers are below in a mixture with other water, mineral oils or solvents; ge suitable solid supports are e.g. B. bentonite, fuller's earth, S-Cl-isopropyl-3-methylpyrazolyl) -N, N-di-gypsum, lime, kieselguhr, pyrophyllite, silicon dioxide methyl carbamate or talc. The preparations can also contain additives, _t l »l _t ao such as B. emulsifiers, wetting agents or binders, propellants gases, fragrances, stabilizers, attractive substances or repellents. The funds can, among other things, rem as dust, grit or granules, as mist, sprayable liquids, as Aeroa5 brine or fumigants are used. It has been found that the effect of the known The amount of the synergistic mixture contained in Insecticidal active ingredient 5- (l-isopropyl-3-methylpyr- crop protection agents can be used in azolyl) -N, N-dimethylcarbamate by adding wide limits. It depends among other things certain, inherently insecticidally ineffective Carbama- from the ratio of the components, from the type of ten is strengthened synergistically. 30 preparation, the method of application, the appropriate As insecticidally ineffective carbamates are to be used according to the desired control success and the type of control Invention compounds are understood to combat pests. up to a dose of about 0.8 mg / dm ² up practically. Depending on the form of preparation, the content of I table do not kill insects, while synergistic mixture between about 0.1 and 90 genes 1 5- (l-isopropyl-3-methylpyrazolyl) -N ₁ N-dimethyl- 35 percent by weight of the agents, which are concentrated in carbamate is fully effective below this dose. tions down to 0.001 weight percent applied Compared to the sole application of the insecti- can be. In general, however, Zidally effective component to combat turning concentrations between about 0.025 and 1 Insects ⁸ / excel- by applying the erfindungsgemä- 10 ₀ in liquid or solid carriers ßen mixtures, in particular, the efficiency increases 40 good results. For some purposes it can be higher ι and the initial effect shortened, whereby the loading application concentrations are desirable. 1 fighting can be made safer. In addition, in the synergistic mixtures according to the invention It was found that in the case of the mixtures, the weight ratio of the components can be used 1 equal to the insecticidally active carbamate which is generally from about 25 to 1 part by weight of the ! Warm-blooded toxicity can be reduced, which is effective and from about 1 to 50 parts by weight of the I suggests that the control of insect pests are ineffective components. Preferably , when using these mixtures compared to, synergistic mixtures with a weight ! sole application of the contained insect ratio of 1 to 10 parts of the effective carbam j ticidally effective individual components for the user tes to 5 to 50 parts of the ineffective compounds I like it to be safer for pets. 50 used. I As to the compounds from the class of carbamates, in repeated laboratory tests the in I of which an insecticidal activity is known, Table I listed carbamic acid esters according to do- : belong e.g. B. S-methyl-S-isopropylphenyl-N-methylized application (4 mg / cm ² ) as aqueous emulsions I carbamate, 1-naphthyl-N-methylcarbamate, 3-iso- up to concentrations of at least 0.25 volume ; propylphenyl-N-methylcarbamate and 5- (l-isopiopyl- 55 percent inactive against , 3-methylpyrazolyl) -N, N-dimethylcarbamate. ^; It is also known that one of the expected additi- house flies (Musca domesüca L.) after 24 hours ¹ ven effect clearly surpassing increase in effectiveness of long-term exposure on spray coatings, '' with mixtures of two different grain beetles (Sitophilus granarius L.) after four days known carbamate insecticides as Analog-Syner- 60 permanent exposure on spray coatings, gism exists. However, this observation comes _ ,,,,, _, _D ·> no general meaning because predictions about stick insects (Carausms morosus Branner) a compound's own potentiating effect after immersion treatment and day exposure after combined application with known bio- ^on treated forage, gically active substances due to the lack of 65 cockroaches (Blatella germanica L., Periplaneta ame knowledge the ricana L., Leucophaea maderae F.) on which the synergism is based Mechanisms of action in the insect organism not immersion treatment or after 4 days of exposure possible are. It was therefore surprising that according to tion on spray coatings,