Ever notice a sudden swarm of flies or other insects around your lawn after fertilizing? The culprit may be your fertilizer. We’ve reviewed the science and offer proven strategies to keep your yard pest‑free. Why Fertilizer Can Draw Flies Flies thrive on decaying organic matter. When you apply manure or compost, you create the very environment they seek for egg‑laying. Even synthetic fertilizers can attract insects when they release nitrogen‑rich vapors that encourage certain pests like aphids a
