Incidence of Aphid Pests in Vicia faba L. and Their Management in Bhaktapur Municipality, Nepal
Abstract
Aphis fabae Scopoli, Aphis craccivora Koch and Aphis gossypii Glover were noticed infecting the Vicia faba L. in Bhaktapur Municipality. Among these aphid species Aphis fabae Scopoli was found to be serious pest. Intensity of aphid infestation in pesticide used pocket fields of commercial and non-commercial faba growers are significantly different. Washing aphids off from plants with a steady blast of water, pinching the tops of the plants off, sprinkling ash around the infected part, sprinkling flour powder or chillies (Khursani) powder in early morning in presence of dew, Sisnu (Urtica dioica) soaked solution, Titepati (Artemisia vulgaris) soaked solution, garlic soaked solution, a spray of shampoo with little kerosene, sprinkling cow urine, organic pesticide called “Jaibik bishadi” and trap cropping practices bring pests under control especially if infestation is in early stages. The farmers failed to get real benefits from the use of pesticides despite it has resulted an extra cost. Existing pest management practices proved to be less efficient. Most of commercial faba growers diverted towards other cash crops and the area of faba cultivation is decreasing year by year in Bhaktapur Municipality.
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