Lawn Aeration and Pesticide Safety Information

Purpose of Core Aeration

Aeration mechanically removes soil plugs to alleviate compaction, sever surface roots, and improve gas exchange, water infiltration, and microbial activity. It is most beneficial for lawns with heavy foot traffic, clay soils, or thatch buildup. Lawns in good condition may not need annual aeration, and spike aerators are less effective than core types.

Finding Authoritative Pesticide Safety Data

• Material Safety Data Sheets (MSDS/SDS): Provide toxicological, ecological, and handling data for each product.
• Product Labels: Legal documents specifying approved uses, rates, and precautions.
• EPA Registration: Review risk assessments at epa.gov/pesticides.
• University Extensions: Offer unbiased, research-based guidance (e.g., Pesticide Environmental Stewardship).
• National Pesticide Information Center (NPIC): 1-800-858-7378, npic.orst.edu.

Best Practices

• Spot-treat pests rather than broadcast applications.
• Rotate modes of action to prevent resistance.
• Integrate cultural controls (mowing height, irrigation, aeration) to reduce pesticide reliance.
• Consult independent garden centers for local expertise.

For large properties (7+ acres), limit aeration to once yearly to avoid stressing tree roots.