NARENDER KUMAR, U. S. SHARMA, ANIL MEENA AND MUKESH

A study on the seasonal incidence of sap feeding insect pests of cotton was conducted during kharif 2013 at theInstructional Farm, RCA, MPUAT, Udaipur. The major pests recorded on cotton included the aphids (Myzus persicae(Sulzer); Aphis gosssypii Glover), jassids (Amrasca biguttula biguttula Ishida, Empoasca sp.), whitefly (Bemisia tabaciGenn.) and thrips (Thrips tabaci Linn.). The sucking pest infestation began in 28th SMW and the peak population of aphids(48.20 aphids/plant) and thrips (40.63 thrips/plant) was in 44th and 36th SMW, respectively; whereas, the population ofjassids and whitefly reached the peak with mean 24.40 jassids/plant and 34.66 whiteflies/ plant during the 36th SMW,respectively.