For pre-emergent applications, apply the weed killer to the lawn before soil temperatures reach 50 degrees in the spring, says Marc Mayer. In fall, apply the product when soil temperatures are ...

Get golf course-like grass with these best weed killers and weed preventers for lawns Choosing the best weed killers for lawn ...

A: In most cases, herbicide application should not be considered as a first option for weed control. Hand weeding, hoeing and mulching are tedious but effective methods of weed control. Sometimes, ...

Pre-emergent is a type of herbicide that attacks weeds before they’re able to take over a lawn or flowerbed. These herbicide chemicals attack the root systems of the emerging weed plants ...

Treflan is the pre-emergent herbicide in the popular product called Preen. Dimension is not as well known. It is available in a product called Hi-Yield Turf and Ornamental Weed Control.

Best Time To Spray Pre-Emergent Weed Killers On Lawns. Pre-emergent herbicides are used on lawns to prevent weed seeds from germinating in spring.

Q: What are the advantages and disadvantages of pre-emergent herbicides? In most cases, herbicide application should not be considered as a first option for weed control.

There is an organic pre-emergent weed control: corn gluten. It is effective but only for 4-6 weeks. Dimension cannot be used around vegetables.