by April Reinhardt
(last updated January 23, 2019)
If you have a problem with weeds in your lawn, and realize that you need to use a weed killer, but don't know when to use pre-emergent herbicides, then read on. This will help you to understand how and when to use pre-emergent herbicides:
Always water after you apply a pre-emergent to make the herbicide penetrate the surface of the soil. If you don't water it in, then it will simply lay there on top of the ground and the weeds will continue to germinate underneath the herbicide and grow as if you never applied it. Always follow the directions on the product label, making the proper calculations as to how much chemical you should use as it pertains to the size of your lawn.
In order for the post-emergent to be effective, it is important that the herbicide come into contact with the plant ...Discover More
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