Fly Killer Sprays

Fast knockdown sprays are made to kill flies you can see quickly. Residual sprays leave an active deposit on treated surfaces to help control flies that land there over time. IGR (insect growth regulator) products don’t usually kill adult flies straight away; they help break the breeding cycle to reduce future activity. The best choice depends on where the flies are, how persistent the problem is, and where the product can be used—always check the label for approved areas and application instructions.

Focus on where flies rest and enter: window frames and sills, doorways, warm wall areas, and around bins/food waste zones (without spraying food or food-contact surfaces). For residual products, treat the resting surfaces specified on the label so flies pick it up when they land. For fast knockdown, target the fly directly or the immediate area as directed. Reduce attractants (waste, spills, standing moisture) alongside spraying for better long-term results.

It depends on the product. Some sprays may be suitable for kitchens when used correctly, while others are not intended for food-handling areas. Always read the label first and follow directions for where you can apply it. As a rule, avoid spraying food, utensils, preparation areas, and food-contact surfaces, and ventilate if the label recommends it. If you need help choosing, consider a product designed for indoor use and apply to entry/resting points away from prep zones.

Suitability varies by product and active ingredient, so follow the label carefully. Keep children and pets away during application and until treated areas are dry and/or the room is ventilated as directed. Place products securely, avoid treating items they may lick or chew, and wash hands after use. If you’re unsure which option fits your household, choose the least intrusive method for the situation (e.g., pesticide-free and natural options) and always use pesticides exactly as instructed.