Spraying wheat crops for midge after the crop has flowered is a waste of insecticide and may do more harm than good, even if wheat midge are still in the crop, Manitoba’s agriculture department warns. That’s because when wheat flowers it changes chemically, and a substance called ferulic acid is produced. Ferulic acid makes the
Manitoba Agriculture
Manitoba Agriculture is a department of the Government of Manitoba, overseen by the Minister of Agriculture.
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