[The activity of cyfluthrin and cypermethrin-based preparations against the vector of the causative agent of tick-borne relapsing fever]. / Aktivnost' tsiflutrina i preparatov na osnove tsipermetrina po otnosheniiu k perenoschiku vozbuditelia kleshchevogo vozvratnogo tifa.

Laboratory tests have established a high activity and long-term persistence of some cipermethrin isomers (fendone, fastac) and cifluthrin (zolfac) against the tick Ornithodoros papillipes, a carrier of tick-borne relapsing fever. These indices are considerably superior to those of an isomer mixture of cipermethrin (cimbush, ripkord). This can be applied to deltamethrin and cigalothrin. The findings suggest that these agents are highly promising in controlling the carrier of tick-borne relapsing fever along with a significant reduction in the ecological pesticidal load in the focus.

[The insecticidal activity of thermal aerosols of permethrin]. / Insektitsidnaia aktivnost' termoaérozolei permetrina.

The aerosols derived from the designed 2% permethrine-containing pyrotechnical formulations (tablets and briquets) were tested for their effects in laboratory and field conditions. When tested in the chamber, its LC50 and LC99 were 0.056 and 0.43 mg/m2 (as calculated for the active ingredient), respectively, for Ae. aegypti mosquitos exposed to 15 min in the polycarprolactam plastic trap and 2.99 and 5.66 mg/m2 (for the active ingredient) for M. domestica flies exposed to an hour. LC99 for C. pipiens ranged 2 to 5 mg/m2 in the field conditions when treating the basements with varying airtightness. The effective dosage ensuring a 100% death of M. domestica in the animal-breeding premises of various types is 10 mg/m2 on an hour exposure.

[The acaricidal activity of pyrethroids against Ixodes persulcatus P. Sch. nymphs]. / Akaritsidnaia aktivnost' nekotorykh piretroidov po otnosheniiu k nimfam Ixodes persulcatus P. Sch.

The efficiency of 9 drugs based on cipermethrin, deltamethrin, permethrin, lambdacigalothrin, ciphenothrin, phenothrin against hungry I. persulcatus nymphs was studied in the laboratory setting. The values LD50 and LD99 (in g of an active ingredient per m2) were found when the nymphs got into contacts with the treated filter paper for 10 sec and 1 min. The paper discusses whether the pyrethroids as part of attractant-acaricidal granules can be used to suppress the size of ticks in the tick-borne encephalitis foci.

[The insecticidal activity of the preparation K-othrin in relation to different species of arthropods]. / Insektitsidnaia aktivnost' preparata K-otrin po otnosheniiu k chlenistonogim raznykh vidov.

A high insecticidal activity of K-otrin (flow), a preparation containing 2.5% of deltametrin, towards various arthropods, was revealed in laboratory experiments and in field trials. The effective doses were determined: 0.01-0.1 g/m2. Residual effects of the insecticide on the treated surfaces persist for 3 months and longer. Toxicologic studies revealed the possibility of using K-otrin for medical disinfection. The preparation is permitted for use by the Ministry of Health.

[The efficacy of the biological insecticide BLP with regard to the larvae of blood-sucking mosquitoes in Uzbekistan]. / Effektivnost' biologicheskogo insektitsida BLP v otnoshenii lichinok krovososushchikh komarov v Uzbekistane.

The efficacy of a biologic larvicidal preparation BLP was under study; the insecticide was prepared on the basis of a new strain of B. thuringiensis var. israilensis H-14, isolated from natural material, and its activity to Ae. caspiens, C. pipiens, An. hyrcanus larvae was examined. The minimal effective dose of BLP used for the treatment of various water bodies is 0.5 kg per 10,000 m2. BLP is permitted by the Ministry of Health and the Ministry of Fishery of the Russian Federation for mosquito larvae control in water bodies, the permission has been approved by the Committee for Nature Protection.

[The efficacy of a new insecticide ethofenprox (Trebon) for controlling different types of insects]. / Effektivnost' novogo étofenproksa (trebona) dlia bor'by s razlichnymi vidami nasekomykh.

The insecticidal action of the new compound ethofenprox (trebon) in the form of 10 and 30% flow concentrate against house flies, cockroaches, bed bugs, rat fleas, mosquito imagines and larvae of Aedes and Culex genera was studied in the laboratory and in the field. The effective doses and the methods of spraying were established. 10% flow trebon is allowed by the USSR Ministry of Health to be useful in medical disinfection.

[The fauna and ecological traits of the dominant species of blood-sucking mosquitoes on the area of irrigated lands in Uzbekistan]. / Fauna i nekotorye cherty ékologii dominiruiushchikh vidov krovososushchikh komarov na territorii oroshaemykh zemel' Uzbekistana.

Blood-sucking mosquito fauna, season and circadian activity of predominant species, dynamics of hatching place formation in the villages and on the territories surrounding the Golodnaya and Dzhizakskaya steppes have been studied for many years and the materials have been presented. The data obtained serve as the basis for planning, prophylactic and eliminating measures.

[Trials of the insecticides Icon and Ficam against mosquitoes in the southern USSR]. / Ispytaniia insektitsidov aikona i fikama protiv komarov na iuge SSSR.

Two residual insecticides (Icon 10% WP, ICI and Ficam W 80% WP, CAMCO) were in 1989 tested in field trials in Tajikistan, Azerbaijan and Uzbekistan against Anopheles superpictus, An. sacharovi, An. pulcherrimus, An. martinius, Culex pipiens, Aedes caspius, and Ae. vexans. In dosages recommended by the producing companies (0.025 g/m2 a. i. for Icon and 0.4 g/m2 for Ficam), the above preparations showed residual action during 2-3 months. Icon and Ficam did not cause irritability and repellency in mosquito, which did not migrate to unsprayed rooms of cattle sheds. In areas where the experimental trials were large-scale, a stable decrease in mosquito density was achieved. An insecticide action of ICON was also noted on house flies, cockroaches, bed bugs, fleas and spiders.