The larvae also have the ability to bore into stems, interrupting nutrient and water flow, which decreases the plant's health and vigor. Adults and larvae are both capable of transmitting fungal pathogens. Proper sanitation and chemical applications are the most common measures that can be taken to control fungus gnats. The information given herein is supplied with the understanding that no discrimination is intended and no endorsement by the Purdue University Cooperative Extension Service is implied. Any person using products listed assumes full responsibility for their use in accordance with current direction of the manufacturer.
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