Cotton Growers in Punjab Warned as Whitefly Infestation Threatens Crop Health

PAU survey detects rising pest levels in cotton fields; farmers advised to intensify monitoring and timely control measures

Punjab Agricultural University (PAU), Ludhiana, has reported the presence of whitefly infestation in some cotton fields following a recent survey across the state’s cotton belt. The pest population has been observed nearing the economic threshold level of six whiteflies per leaf.

Experts have cautioned that the prevailing weather conditions could lead to a further rise in infestation levels during the coming week. Farmers have been advised to regularly inspect their fields and begin pest management measures once the infestation reaches the economic threshold level.

For controlling whiteflies, PAU has recommended spraying any one of the prescribed insecticides, including flonicamid, afidopyropen or pyrifluquinazon, in recommended quantities.

Farmers have also been advised to monitor green leafhopper infestation and apply recommended pesticides if 50 per cent of fully developed leaves show yellowing along the edges and downward curling.

For early-sown cotton, PAU has suggested initiating pink bollworm control when 10-20 per cent of plants reach the flower-bud stage, using the recommended insecticides.

To manage white bollworm in desi cotton, the university has recommended spraying one of the prescribed pesticides when about 25 per cent of plants have flowered.