Annals of Plant Protection Sciences

The newly sprouting tender shoots and leaves were attached by Tarucus theophrastus after pruning. Due to its attack, the leaves dried up and tender shoots did not grow properly. The chemical control at this stage was very useful to protect the fresh and tender shoots for better growth and vigour of the trees as well as fruit set. Endosulfan (0.0525 & 0.07%), quinalphos (0.05 & 0.0625%), triazophos (0.08 & 0.1%) and lindane (0.04 & 0.05%) were evaluated for the control of T. theophrastus. Each concentration was sprayed at the maximum pest population i.e. second fortnight of June to first fortnight of July. There were two sub-treatments for each concentration, i.e., two applications made at the appearance of fresh leaves followed by second spray at 15 days later, and single application made at the appearance of fresh leaves. Results revealed that endosulfan (0.07%), quinalphos (0.05%), triazophos (0.1%) and lindane (0.05%) were significantly effective in reducing the larval population and damage to leaves. The reaction of 27 genotypes of ber on the basis of leaf infestation and larval population revealed that, none of the genotypes was free from the attack by ber butterfly.