Department of Entomology, Sardar Vallabh Bhai Patel University of Agric. & Tech., Meerut-250 110, U.P., India.
*A part of M.Sc. thesis submitted by Mr. Sushil Vishla to the Collage of Agric. SVBPU. Ag. & Tech. Meerut-250 110, U.P., India. E-mail: sushil.bishla@rediffmail.com.
Studies were conducted to observe effect of different coloured Tricho-egg cards on egg laying responses of Trichogrammatids female. The percent parasitism differed significantly on eggs cards of different colours. Trichogramma chilonis showed maximum parasitism on yellow coloured cards (81.37%) T. japonicum showed maximum parasitization on single red (52.12%) and T. brasiliensis on satin blue (82.00). whereas T. pretiosum showed maximum parasitism like T. japonium on single red coloured card (49.75%). However, percent adult emergence of all Trichogrammatids on different coloured egg cards showed non-significant from each other.
