Biocontrol strategy for the management of sugarcane insect pests
Sugarcane is a perennial crop harbors number of natural enemies. These natural enemies play important role for maintaining pest population. Physical growth of the crop and availability of insect pests round the year give ample scope for the exploitation of biocontrol agents in the managements of sugarcane insect pests.
The current total irrigation potential of the country is estimated at 113 M ha of which only 50% is under actual use. One tonnes of cane need 60-70 tonnes of water. The crop should be irrigated when available water reaches to 50% of level. Maximum water is required during tillering stage and during elongation or grand growth phase. There should be proper drainage in rainy season.
Sugarcane an important agro-industrial crop in India plays a pivotal role in national economy by contributing 1.9 per cent to GDP. The crop is cultivated in 4.22 m ha producing 300 mt with a productivity of 70 t/ha.