BIOLOGICAL AND ECONOMIC EFFECTIVENESS OF INSECTICIDES AGAINST POTATO PESTS IN THE CONDITIONS OF AKMOLA REGION

Abstract

The article presents the results of a study on the effect of insecticides on potato yield and determines the biological effectiveness against the Colorado potato beetle and the economic effectiveness of insecticides on potatoes.

The research tests were placed at the experimental field of Kokshetau Experimental Production Farm LLP, Akmola region. The research was carried out on potato culture, the Shagalaly variety, approved for use in the Akmola region since 2008. At the first spraying on the biological effectiveness of insecticides, that is, the death of the larvae of the Colorado beetle, the maximum indicator was observed in the variant of the experiment with the insecticide YUKAZ-7, the efficiency was 96 %. The biological efficiency of the standard Break, M.E. (0.05 l/ha) was maximum of 92,2%, on average for 3 records – 89.7% (1-spraying).

During the second spraying of potatoes with insecticides, the highest biological efficiency of 93.7% was observed in the variant using YUKAZ-7 (0.05 l/ha), on average 90.9%. The lowest biological efficiency index of 83.5% was observed in the variant with the use of Regent (0.025 kg/ha), with an average of 87.3% for 3 records.

The greatest economic efficiency was shown by insecticides Fipromax v.d.g. - the yield was 21.8 t/ha.