Pesticides in Your Garden Can Harm Soil Health

The article reports that herbicides, fungicides, insecticides and treated seeds can damage beneficial soil organisms and reduce soil fertility; a 2021 review of nearly 400 studies is cited as finding that pesticides can harm soil ecosystems.

Many home gardeners reach for pesticides to protect vegetables and ornamental plants. Under the surface, diverse soil organisms support nutrient cycling, aeration, and decomposition. The article reports that pesticides can harm those beneficial microbes, fungi, and invertebrates. A 2021 review of nearly 400 studies is cited as finding that pesticides of all types can damage soil ecosystems. Key findings: - Pesticides can affect a broad range of soil life, including microbes, beneficial fungi, earthworms, beetles, and other invertebrates. - The article cites a 2021 review of nearly 400 studies that concluded all types of pesticides can be dangerous for soil ecosystems. - Herbicides containing glyphosate are reported to persist in soils for months and can reduce invertebrate populations. - Fungicides do not distinguish between harmful and beneficial fungi and are reported to affect decomposition and nutrient access for plants. - Insecticides are reported to kill both pest and beneficial insects that help aerate soil and break down organic matter. Summary: Reported damage to soil organisms can reduce soil fertility and alter the underground ecosystem over time. The article describes effects across herbicides, fungicides, insecticides and treated seeds. Undetermined at this time.