The Punjab government has already sent these samples to the Union Agriculture Ministry.
On reports of farmers suicides, the state government has informed the Centre that district collectors have been asked to investigate each case and submit report by October 16.
Punjab farmers are seeking higher compensation for crops damaged in whitefly attack for the past two days.
"We had offered to provide lab facilities to test the pesticides quality. Accordingly, the Punjab government has sent 1,000 samples. Based on the reports, action will be taken," a senior Agriculture Ministry official told PTI.
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Subsequently, the ministry had sent a team of experts from the Directorate of Plant Protection to Punjab and Haryana, which found fields infested with the pest.
"At the zonal meeting for preparing a strategy for rabi season, this issue was discussed in detail. The remedial measures were suggested to the state. Later, the state government had also launched a campaign to check if spurious pesticides were sold in the market," the official added.
Asked about reports of farmers suicides due to the crop damage, the official said, "We enquired about the suicides with the Punjab government. It told us that the district collectors will submit the report by October 16 after investigating whether suicides were related to agrarian reasons."
Asked about the extent of damage and likely fall in cotton production, the official said it has still not been ascertained as the state government is in the process of collecting the field data.