* Department of Horticulture, K.A.P.G. College, Allahabad-211 001, India.
Department of Horticulture, C.S.A. Univ. of Agri. & Tech., Kanpur-208 002.
Incidence of citrus psylla (Diaphorina citrl) was observed in six citrus crops and peak population of insect was found in March to September. In the months mean, population of citrus psylla varied from 0.96 to 5.74/unit in sweet orange to kagzi lime during September to July in two xears of experimentation.
Citrus spp, Diaphorina citri, Seasonal incidence
