STRATEGY FOR COMBATING BACTERIAL BURN OF FRUIT CROPS IN KAZAKHSTAN
https://doi.org/10.31676/2073-4948-2021-65-87-92
Abstract
On the basis of many years of research, a strategy for combating fire blight was developed, including a set of measures aimed at reducing the infectious load in gardens, curbing the intensity of pathogen reproduction, and increasing plant resistance to disease. On the basis of this strategy, a complex of control measures was developed, including the autumn pruning of affected organs in accordance with quarantine requirements, whitewashing of trunks and skeletal branches with lime with the addition of 4 % copper sulfate and spraying with the fungicide Cosside 2000, v.d. (3 kg/ha); in the spring, prophylactic spraying with the same fungicide before bud break; during the flowering period, double spraying with biological preparations of Fitolavin, VRK (2 l/ha); after flowering, during the period of ovary abscission, double spraying with growth regulator Regalis plus (d.v. prohexadione calcium), 1,25 kg/ha. A production test has shown that complex measures developed on the basis of a fire blight control strategy effectively suppress the disease at the site of infection. The biological efficiency was 97.5 % with an increase in yield 36.2 %.
About the Authors
B. K. Kopzhasarov
Zhazken Zhiembaev Kazakh research Institute of plant protection and quarantine
Kazakhstan
Kazakhstan
Almaty
A. A. Dzhajmurzina
Zhazken Zhiembaev Kazakh research Institute of plant protection and quarantine
Kazakhstan
Kazakhstan
Almaty
Zh. Z. Umiralyieva
Zhazken Zhiembaev Kazakh research Institute of plant protection and quarantine
Kazakhstan
Kazakhstan
Almaty
Z. B. Beknazarova
Zhazken Zhiembaev Kazakh research Institute of plant protection and quarantine
Kazakhstan
Kazakhstan
Almaty
T. K. Eszhanov
Zhazken Zhiembaev Kazakh research Institute of plant protection and quarantine
Kazakhstan
Kazakhstan
Almaty
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Review
For citations:
Kopzhasarov B.K., Dzhajmurzina A.A., Umiralyieva Zh.Z., Beknazarova Z.B., Eszhanov T.K. STRATEGY FOR COMBATING BACTERIAL BURN OF FRUIT CROPS IN KAZAKHSTAN. Pomiculture and small fruits culture in Russia. 2021;65:87-92. (In Russ.) https://doi.org/10.31676/2073-4948-2021-65-87-92
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