DETERMINATION OF RHYTHMICS OF GRYLLOTALPA GRYLLOTALPA TROPHIC ACTIVITY


  • I. M. Trohymchuk Rivne State Humanitarian University
Keywords: European mole cricket, harmfulness, bioecological characteristics, trophic priorities, life cycle, rhythmics of trophic activity

Abstract

Gryllotalpa gryllotalpa began to multiply rapidly in recent years, resulting in significant increase of its harmfulness. Developing effective, efficient and secure methods to limit the negative activity of European mole cricket requires a thorough knowledge of bio-ecological characteristics, and on this basis   grounding limitation methods of its harmfulness and technologies of main vegetable crops protection.

In this work the main focus is on the overall assessment of trophic priorities of European mole cricket based on analysis of the 3-year data of plant vegetables loss dynamics.

In order to successfully regulate the number of pest we should first of all be familiar with the most unfavorable in its development so-called critical periods. In terms of Rivne region full cycle of species in 85–90 % of the population takes 2 years (first wintering in the larval stage of 3-5 years age, second – nymphs or imagos); 5 % – 1 year and 7 % – 3 years. Insects in a state of diapause are very resistant to many adverse conditions – low and high temperatures, humidity, exposure to toxic substances, radiation. Conducting our research, we determined the rhythm of trophic activity, and therefore – harmfulness of European mole cricket on farmland. It can be divided into three periods: early spring, spring-summer and autumn.

 

Author Biography

I. M. Trohymchuk, Rivne State Humanitarian University
Candidate of Pedagogical Science, Associate Professor of Department of Biology Rivne State University for Humanities

References

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Verizhnikova, I. V., Fokin, A. V. (2003). Kapustjanka zvychajna Gryllotalpa gryllotalpa L. (Gryllotalpidae: Orthoptera): spalahy masovogo rozmnozhennja ta i'h prognoz // Visnyk agrarnoi' nauky Prychornomor’ja. – 2003. – Spec. 3 (23). 2, 3–7. (in Ukrainian).

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Published
2015-03-29
How to Cite
Trohymchuk, I. M. (2015). DETERMINATION OF RHYTHMICS OF GRYLLOTALPA GRYLLOTALPA TROPHIC ACTIVITY. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 17(1), 214-218. Retrieved from https://nvlvet.com.ua/index.php/agriculture/article/view/3579