Dynamics harm insects herbivores winter wheat in forest-steppe of Ukraine in conditions of climate change

V. M. Chayka, T. M. NEVEROVSKA, I. V. HAVEY

Анотація


Climate change affected on environmental performance constancy types of complex harmful insects herbivores winter wheat under steppes of Ukraine: decreased frequency of existence on crops, such pests as opomiza, hesse fly, wheat fly, bug-shell harmful insects. In the past 10 years, the most notable loss of crop from harmful insects on winter wheat registered in the Poltava and Kharkiv regions, but  not exceeded limit indicator  Economic threshold of harmfulness. In other areas of the forest-steppe loss of crop from harmful insects were insignificant. Given the variability of phytosanitary condition of crops winter wheat, depending on weather conditions vegetation season, expediency chemical protection against pests should be determined only by the results of entomological monitoring.

Ключові слова


population, phytophages, climate change, harmfulness, economic index, еconomic threshold of harmfulness, phytosanitary state

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