Bioinsecticides for potato protection from the Colorado potato beetle

Posted on 21.05.2024 by Саша Корнев
UDC 625.21:632.76:632.973.1
https://doi.org/10.25630/PAV.2024.46.43.003

Alekseeva K.L., Bagrov R.A.

The Colorado potato beetle (Leptinotarsa decemlineata Say) is a dangerous insect pest of potatoes. Every year it causes serious losses of potato production in Russia and abroad. Use of chemicals against this insect pest has well known disadvantages, therefore, non-chemical methods of its control, including the use of bioinsecticides based on entomopathogenic microorganisms, are becoming increasingly in demand in ecologized and organic potato growing technologies. The article presents the results of studying the characteristics of the action of new bioinsecticides and their biological effectiveness against the Colorado potato beetle in the Moscow region. It has been ascertained that preparations Insetim Plus at a rate 4 l/ha and Driver, at a rate 0.2 kg/ha cause a gradual decrease of the insect pest population, and as result of their regular introduction into an already infected beetles population, its number decreases to economically insignificant. The preparation Insetim Plus (titer not less than: Bacillus thuringiensis subsp. thuringiensis IPM-1140 2.0×108 CFU/cm3, Streptomyces avermitilis ATCC 31267 4.0x105 CFU/cm3, Metarhizium anisopliae var. anisopliae 4.0×106 CFU/cm3, Beauveria bassiana 4.0×106 CFU/cm3, Arthrobotrys oligospora 168 4.0105 CFU / cm3) with a flow rate 4 l/ha and a solution flow rate of 200 l/ha is effective against the Colorado potato beetle and reduces its population by the fourteenth day after the second and third treatment by 98.0–98.7%, 97.9%. The preparation Driver (titer at least 1011 CFU / g Bacillus thuringiensis var. thuringiensis In 1127 + at least 109 CFU/g Beauveria bassiana F 2010 + at least 109 CFU/g Metarhizium anisopliae F 2006) with a flow rate of 0.2 kg/ha and a solution flow rate of 200 l/ha is effective against the Colorado potato beetle and reduces its population by the fourteenth day after the second and third treatment by 88.1–95.6.7% of the control. After being included in the List of Permitted Pesticides and Agrochemicals, the studied bioinsecticides can be recommended for Colorado potato beetle control on potato.

Key words: bioinsecticides, potato, Colorado potato beetle, biological efficiency

Alekseeva K.L., D.Sci. (Agr.), chief research fellow, head of the Research Direction «Immunity and Plant Protection». E-mail: alexenleon@yandex.ru

Bagrov R.A., Cand. Sci. (Agr.), senior research fellow, sector of breeding and seed growing of cabbage crops

All-Russian Research Institute of Vegetable Growing – branch of Federal State Budgetary Scientific Institution Federal Scientific Centre of Vegetables (ARRIVG – branch of FSBSI FSCV)

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For citing: Alekseeva K.L., Bagrov R.A. Bioinsecticides for potato protection from the Colorado potato beetle. Potato and vegetables. 2024. No2. Pp. 30-34. https://doi.org/10.25630/PAV.2024.46.43.003 (In Russ.).

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