“Survey and Surveillance of emerging pests of litchi and their natural enemies”
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Date
2022-12-27
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College of Horticulture and Forestry Dr YSP UHF, Neri, Hamirpur(H.P.)
Abstract
The present studies entitled “Survey and Surveillance of emerging pests of litchi and their natural enemies” were undertaken during 2021-22 in different litchi growing areas of two districts (Kangra and Hamirpur) at Regional Horticultural Research and Training Station (RHRTS) Jachh (Nurpur), Kangra, Litchi and Mango Research Station (LMRS) Nagrota Bagwan, Kangra and Regional Horticultural and Forestry Research Station, Bhota, Hamirpur. During the Survey and Surveillance 10 insect species viz., Leaf roller (Argyroploce leucaspis), Fruit borer (Conopomorpha sinensis), Looper (P. illepidaria Guenee), Ash weevil (Myllocerus undecimpustulatus), Bark eating caterpillar (Indarbela sp.), Litchi mite (Aceria litchi), Rice earhead bug (Leptocorisa acuta Thun.), Pentatomid bug (Plautia crossota), Mango hopper (Amritodus atkinsoni), Sap beetle (Glischrochilus quadrisignatus) and Natural enemies viz., 6 different species of Spiders, Mantid lacewing, Ladybird beetle and Hunter fly was observed at Kangra and Hamirpur districts. During the study, maximum infestation of Leaf roller (29.9%), maximum infestation of Looper (6.4%), maximum population of Rice earhead bug (15.5 adult), maximum population of Pentatomid bug (24.1 adult), maximum population of Sap beetle (7.3 adult), maximum infestation of Litchi mite (30.6%), maximum infestation of Fruit borer (42.66%), maximum population of Mango hopper (13.2 adult), maximum infestation of Ash weevil (15.9%), maximum infestation of Bark eating caterpillar (82.75%) was recorded at Kangra and Hamirpur district around the year.