Preemergent weed killer is meant to stop weeds from growing and is usually applied in the spring. If you have had issues with weeds and have decided to get a head start on the problem before summer pre-emergent helps you also need to overseed or reseed the yard so that you can fill in all the bare spots where weeds have grown in the past. A thick lawn helps keep weeds out by denying the seeds access to the soil through the thick blades.
However before applying it you should check the pre-emergent to ensure the type of grass in your lawn isn’t affected.
Rake the lawn to remove dead grass and roots. The preemergent should take care of weeds before they emerge, and is applied in the spring before temperatures reach into the 50. Wait at least six to eight weeks before casting seeds to ensure there is no effect from the pesticide.
Walk over the lawn with a spreader moving back and forth in rows. Repeat with the other half of the seed in rows at a perpendicular angle to the first. Sprinkle 1/4 inch of topsoil over the lawn letting it fall between the blades of grass and overseeds.
Water the grass to soak it down to 2 inches deep. Continue to water every day until blades of grass grow, and then water twice a week to equal one inch of water per week.
Tips warnings do not over water or you will cause erosion that will wash away the seeds do not walk over the ceded area if possible to keep from packing the soil or removing seeds with the soles of your shoes keep children and pets off the treated areas since the chemicals could be harmful.
It is critical to recognize what sort of grass you have developing or need to have developing. Certain synthetic concoctions act contrastingly on various types of grass and weeds.
For instance, the normal herbicide 2,4-D is dangerous to certain cultivars of St. Augustine grass (Stenotaphrum secundatum), which develops in the region generally secured by U.S. Branch of Agriculture plant solidness zones 8 through 10.
Another normal herbicide, atrazine, is possibly deadly to grass when connected in temperatures over 85 degrees Fahrenheit. Utilize the directions on the pack of each weed and feed item to decide how it will influence seeding.