Types of damages- In the first stage when larva of white grub, comes out from the egg, it survives on the foodstuff from the rotten organic substances available in the soil, if it gets the fresh roots, larva feeds itself completely on roots. After this, in second and third stages, larvae eat roots of sugarcane and other crops in the month of June to October. In the month of November to January white grub makes pupa, deep in the soil below 90 to 120 cm depth. The adult comes out of the pupa, and lie in the soil without any food till the summer rains.In sugarcane, these larvae damage the roots. Since the roots are destroyed, the intake of food and water of the crops stops. Infested sugarcane crop looks dull and the leaves appear langoured, slowly leaves start becoming yellowish, and finally get dried up. Since the roots of the sugarcane teared off by the pests, sugarcane as a whole get dry up. Controlling of the white grub must be done at proper time (May-August). Even though, only one breed of white grub takes birth within 12 months, the longer life span of the larvae, and having capacity of eating food from the roots of the crops, these things cause the maximum destruction of the crop. Mr. Subhash More Senior agricultural expert (sugarcane)