Symptoms of damage

• Caused two type of damages
• Larvae and adults feed on the upper and lower leaf surfaces – leaf injury
• Adult feed on swollen grape buds
• Chew holes in the sides of the newly developing grape buds
• Small holes on tender leaves by adult
• Root damage by grub

Identification of pest

• Adult - Reddish brown, shiny with six spots on elytra
• Grub – brown in colour and black colour head

Management

• Remove the loose bark at the time of pruning  to prevent egg laying
• Shake vines to dislodge adult beetles
• Collect into trays containing kerosenated water and destroy them
• Insecticide: phosalone 35 EC 0.07%  after pruning