Weather conditions are important factors in the development, activity and abundance of the seedcorn maggot. F. An abundance of organic matter and moisture is conducive to larval survival. Avoid early planting in fields having cold, wet, high organic soils. Shallow placement of seed in well-prepared soil favors rapid germination, which evades injury due to maggots. The use of seed treated with an insecticide such as diazinon or methoxychlor is the easiest solution in the prevention of seedcorn maggot injury.
Most commercial seed is treated with pyrethrum, which gives only marginal control.
The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsements by the North Carolina Cooperative Extension Service nor discrimination against similar products or services not mentioned. All pesticide recommendations provided in this publication apply to pest control in North Carolina. Individuals who use chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. Be sure to obtain information about product usage in your locale and examine a current product label before applying any chemical. The information presented on pest biology is based on conditions in North Carolina and may not be applicable to your locale.