Dynamics of the density of the status of the development of the interdival natural populations of coccinellid (Coleoptera, Coccinellidae) on the occurrence of vegetation of wheat in winter in the conditions of the Forest-steppe of Ukraine

G. V. Meluоhina

Анотація


Goal. Study features seasonal fluctuations in long-term dynamics of beneficial insects entomophagous state of interspecific koktsinelid natural populations in crops of winter wheat under steppes of Ukraine. Methods. Comparative, analytical, field, statistical and mathematical. Results. The results of long-term observations of the dynamics of the density of beneficial insects entomophagous koktsinelid on winter wheat crops. Determined that the highest density of biological objects in crops of winter wheat in 2016 was in the range of 2.0 to 21.0 copies per 1 m2in the spring and summer growing season crops, and in autumn the highest density was in 2016 in within 1.0 - 10.0 specimens per m2 strokes nets. Conclusions. Based on our own research suggested making timely monitoring of beneficial insects entomophagous to establish relationship with harmful insect hosts cereal aphids and needs chemical crop protection from herbivores winter wheat. Proposals to make timely inspection route accounting density of insects in two winter wheat growing season: spring, summer and autumn.

Ключові слова


interspecific natural populations, long-term dynamics, koktsinelidy, vesnyanno, summer, autumn, growing season, winter wheat

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Посилання


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