PEST SPECTRA, SUCCESSION AND ITS YIELD LOSSES IN MUNGBEAN AND URDBEAN UNDER CHANGING CLIMATIC SCENARIO

ABSTRACT

Field experiments were carried out to explore the change in pest spectra, their status, succession and yield loss in mungbean and urdbean under changing climatic scenario. The pest spectra comprised of 35 species on mungbean and 25 species on urdbean during kharif season and 17 species were recorded during summer season in both the crops. Broad mite (Polyphagotarsonemus latus), blister beetle (Mylabris pustulata) and spotted pod borer (Maruca vitrata) has assumed the status of major pests during kharif season as compared to earlier report at Kanpur location. Bean flower thrips (Megalurothrips usitatus), a major pest during spring/summer seasons has now become major pest in kharif season also. The avoidable losses due to pest complex on different varieties of mungbean ranged from 27.03 to 38.06% with an average of 32.97%. The avoidable losses due to pest complex on different varieties of urdbean ranged from 15.62 to 30.96% with an average of 24.03%. Seed treatment with imidacloprid 17.8 SL caused 40.2 to 81.4% reduction in sucking pests. Foliar application of monocrotophos 36 SL @ 0.04% at 35, 45 and 55 days after sowing resulted in mean per cent reduction of 35.6 to 90.3% in insect and mite pests.

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REFERENCES

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PEST SPECTRA, SUCCESSION AND ITS YIELD LOSSES IN MUNGBEAN AND URDBEAN UNDER CHANGING CLIMATIC SCENARIO

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