The Q&A Archives: Insect-Infected Peat Moss

Question: 3 cu ft Premiere Peat Moss from HD overwintered and now infected with fungal gnats/fruitflies. Seedlings ruined. Can I safely till this peat moss into my organic garden? If not, what do I do with it? Thanks.

Answer: You shouldn't have any problem incorporating the peat into your garden. Fungus gnats feed and breed in decaying organic matter - peat or potting soils are perfect places for them. Placing a barrier between the top of the soil and the pests will eliminate them. So, if you use it in containers, place a layer of builder's sand or aquarium gravel as a barrier between the peat and the pests. Burying it into your garden will also keep them from accessing it. They will die off if they cannot reach the organic matter. Best wishes with your garden!

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