Swarming caterpillars ravage 2,400 hectares of paddy in flood-hit Charaideo and Sivasagar; drones, pesticides and bird-perches used to contain damage.
Swarming caterpillars ravage 2,400 hectares of paddy in flood-hit Charaideo and Sivasagar; drones, pesticides and bird-perches used to contain damage.