Influence of weather conditions on entomological and phytopathogenic complexes of winter wheat in autumn and spring-summer growth season of the forest-steppe zone


A. Kyrychenko*, N. Havryliuk, L. Kuzmenko, T. Raichuk and Y.Borko

Weather condition changes (air temperature, precipitation) in the autumn and spring-summer periods have been investigated. For 12 years, the long-term seasonal dynamics in the number of the primary blasts and diseases on winter wheat crops have been analyzed, and the features of their development during climate change have been identified. Researches carried out in the forest- steppe zones shows that warming has affected the structure of the entomological and pathogenic complexes. Due to the increase in air temperature, the autumn period became longer, winter wheat, which was sown in late September-early October, has time to grow bushy and take root, and there is not enough heat for harmful objects at that time; therefore, their number is low, or they are absent. Sucking blasts were highly sensitive to climate warming. According to long-term data, the summer growing season of winter wheat is predominantly hot and dry. Such weather conditions led to a violation of the winter wheat phenology, the phases of crop growth accelerated, and the number of sucking blasts decreased.

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