SU651647A3 - Method of fighting insects - Google Patents

Description

from the group containing 2-ethoxn-9- {p-etylfenyl) -2,6-dimethylnonan and 2-3TOKqH-9- (y-isopropylphenyl) -2,6-. -dimethylnonan. 0.00040, 0245 ppm are added to the growth environment. compounds of formula (I)

The present invention relates, in particular to the preparation of arylterpene-shaped compounds active to the domestic fly (Musca doraestica L), to the front fly (Musca.autumnalis Degecz), to the lard (Stomoxys cafcitrans L), to the lighter of the cow (Hacmatomia rasan L) and to the mosquito (Anophe-les guadrimacu; atus). The following compounds were used for the experiments: 2-methoxy-9 - (p, -ethylphenyl) -2,6-dimethylnonane (I I); 2-ethoxy-9- (p-ethylphenyl), b-dimethylnonane (No. 2); 2-meth6xy-9- (p-isopropylphenyl) -2, b-dimethylnonac (No. 3); 2-ethoxy-9- (pl.Shogtropilfenil) -2,6-dimetiLnonan, No. 4); g metoxy-9 -. (p, -Methylphenyl) -2,6-dimethylnonane (No. 5); 2-ethoxy-9- (p, -methylfeiyl) -2, b-dimethylnonane (6); 2 Methoxy-9- (p-1g-propylphenyl) -2,6-dimethylnonan (no.); 2-ethoxy-9- (p-a-propylphenyl) -2,6-dimethylnonane {No. 8); 2-methoxy-9- (p-sec-butylphenyl) -2, 6-dimethylnonane (No. 9); 2-ethoxy-9 (a.-Sec-butylphenyl) -2, b-dimethylnonane (No. 10); 2-methyl 9- (g-tert-butylphenyl) -2,6-dimethylnonane (No. C); 2-ethoxy. -9- (a-tert-butylphenyl) -2, b-dimethylnonane (No. 12),

All of these compounds are tested by depositing insects directly on the pupae, although some of

they were tested by introducing pet food into animals and by spraying the joints on special trays that held an artificial medium for the growth of insects. ; The activity of juvenile hormone in artilterpenoids compounds introduced into the natural environment for the growth of flies is presented in Table. one.

Table 1

Continuation of table 1

 Derived from the control inhibition of J.Econ, Entemog, 18, 265-267, 192 As can be seen from the table, the test compounds have a rather high activity against the face fly when tested by seeding larvae for eggs in the natural growth environment for flies according to the proposed method . Compounds (1 and 2) show high activity with respect to bovine flute. In view of the fact that the face fly is usually more resistant,, che (cowller's whale to compounds that cause izb-ibirovaniya insect maturation, and because the compounds:; (3 and 4) have a high activity against the face fly, they are not in relation to the bovine lizard, susceptibility to the action of compounds that inhibit mature insects falls into the range: a housefly, a facial fly, an ordinary fly, a red fly.

0.5 0.25 O, 125

100

79

82) according to the formula of Abbott, to prevent the residual local application of acetone solution to prevent hatching, containing only 0.1-0.01 µg of each of the six compounds, for common and room flies pupae. . The results of the experiments with feeding (compounds 2 and 4) are shown in Table. 2. In these experiments, cattle are fed for a week, and manure for the experiments is harvested only in the last five days of the test week. :. .,. The development of facial flies, house flies, flies of the common fly and fly fly, and the cow. Cattle feces that receive 3-arylterpenoid compounds with feed are presented in table 2. . . . ,; Table 2

6516478

) Derived from the control inhibition. ) Concentrations obtained upon dilution of 1 part of beef cattle feces, receiving 0.5 mg of Compound with food, 1 part of control feces.

) Concentrations obtained upon dilution with 1 part of cattle feces, with food containing 0.5 mg of compounds, 3 hours of control feces.

As can be seen from the table, compound (4) has the greatest activity with respect to all four species of flies.

Continuation of table 2

The development of a common and room fly lighter on a medium treated by spraying of 3-arylterpenoids is presented in t.bl. 3

Table 3

Continued table. 3

2-ETOXI-9- (p-ethylphenyl) -2 6-dimethylnonane; 2-methoxy-9- (a-isopropylphenyl) -2, b-dimethylnonane; 2-ethoxy 9- (p, - isopropylphenyl): -2, b-dimethylnonane; 2-methoxy-9- (Gt-Bt6p-butylphenyl) -2,6-dimethylnonane; and 2-ethoxy-9- (p, -second-butylphenyl) -2,6-dimethylnonane,

6. Method according to Claims 1 and 5, i.e. T.L. Studying that the compound is selected from the group comprising 2-ethoxy-9- (a-ethylphenyl) -2,6-dimethylnonane and 2-etrxy-9- (a- isopropylphenyl) -2,6-dimethylnonane.

7. The method according to claim 1, in connection with the fact that, in order to inhibit the hatching of the pupae of the mosquito, Yid Anopheles guadrimacuEatus f

a compound of the general formula (I) is introduced into poctoByiq medium.

8, Method according to Claims 1 and 7, which is based on the fact that 0.0004-0.0245 ppm are introduced into the growth medium. compounds of formula I,

9. Method according to Claims 1, 7 and SjO, based on the fact that the compound is selected from the group containing 2-methoxy-E- (dg-ethylphenyl) -2,6-dimethylnonane; 2-ETOXI-9- (p, -ethylphenyl) -2,6-dimethylnonane; 2-methoxy-9- (p isopropylphenyl) -2,6-di-methylnonane; and 2-ethoxy-9- (p-isopropylphenyl) -2,6-dimethylnonane. . Sources of information taken into account in the examination

1. US patent 3786153,

cl. A 01 N 9/24, A 01 N 9/28, 1974.

2. US patent 3835578, cl. A 01 M 1/20, 1974.