Estimation of losses caused by maize stem borer, Chilo partellus (Swinhoe) in Kharif maize sown at different times Dhaliwal Ashwinder K.1, Brar D.S.1, Jindal Jawala2 1Department of Entomology, Punjab Agricultural University, Ludhiana, 141004 2Maize Entomology Laboratory Department of Plant Breeding, Genetics and Biotechnology, Punjab Agricultural University, Ludhiana, 141004 Email: batthscorpion@pau.edu
Online published on 23 October, 2018. Abstract The losses caused by maize stem borer, Chilo partellus (Swinhoe) in kharif maize sown at different times were estimated by protecting the crop with deltamethrin 2.8EC against C. partellus during kharif 2013 and 2014 in Punjab. The incidence of C. partellus was lower in the crop sown on 25th June than that in the crop sown during last week of May and on 10th June. Accordingly, the losses caused by C. partellus were lower in the crop sown on 25th June (8.66–13.26%) than that in the crop sown during last week of May (11.34–16.31%) and on 10th June (11.42–14.55%). The comparison of protected and unprotected conditions revealed that the average avoidable losses caused by C. partellus were found to be 12.99%. Top Keywords Chilo partellus, maize, Punjab, protected, unprotected, deadhearts, losses, severity of infestation, sowing times. Top |