Important Insect Pests in Madicago sativa L. in Bulgaria

This paper describes common insect pests in forage alfalfa in Balkan nation and their seasonal dynamics. the tactic of sweeping with the entomologic web was used. The degree of infestation (attack) of Otiorrhynchus ligustici was established by taking soil monoliths. the foremost common insect pests of alfalfa from animal order are Hypera postica, Sitona spp., Apion seniculus, and Otiorrhynchus ligustici. the following species belongs to orders Hemiptera and order Thysanoptera. Therioaphis maculata was the most harmful coinage, followed by Acyrthosiphon genus Pisum from Aphidodea, additionally Adelphocoris lineolatus and genus Lygus rugulipennis (Hemiptera – Heteroptera). Economic importance species from Hemiptera: Fulgorormorpha and Cicadomorpha were Empoasca pteridis and Agallia ribauti, additionally Thrips tabaci and T. atratus (order Thysanoptera). Apion seniculus is rumored for the primary time in our country as harmful species in alfalfa. the most insect pests, reckoning on the order to that they belong, were found in high numbers through the various regrowth of alfalfa vegetation amount. The determination of the population dynamics of economically necessary pesterer species within the alfalfa adult for forage, helps verify the foremost acceptable time for management and management.

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