When Can You Apply Atrazine

Hi-Yield Atrazine Weed Killer can be applied early in the morning before temperatures reach 90 degrees if it’s expected to get this hot on the day of application. You just do not want to apply during the time of high temperature because your desirable turfgrass is under more stress in high heat.

When should I apply atrazine to my lawn?

In the soil, atrazine is an effective preemergence herbicide, preventing weeds from sprouting. Apply atrazine up to twice a year, making an application in November to control broadleaf winter weeds and annual grasses and again in January. Follow label directions for rates, frequency and application methods.

Can I spray atrazine on wet grass?

Because of the numerous potential environmental and personal health hazards stemming from its use, application during rain is not recommended.