Some pre-emergent herbicides have a root-stunting effect on established turf and can thus be detrimental to the health of your lawn if applied at too high of a rate or applied too many times during a season. It is best to time applications when they will be most effective, and to further prevent weeds, such as crabgrass, by maintaining a dense, healthy stand of turf.
These resources are brought to you by the Cooperative Extension System and your Local Institution
Welcome
eXtension is an interactive learning environment delivering the best, most researched knowledge from the smartest land-grant university minds across America.
Have a question? Try asking one of our Experts
Have a specific question? Try asking one of our Experts
Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.
