Your lawn can offer several different types of weeds that need to be controlled; do you know what kind of weeds you have growing in your lawn?
In the lawn there are two types of weeds that you want to control: Broadleaf weeds and grassy weeds. Broadleaf weeds, known as dicotyledons, would be like your clover, dandelion, mallow, etc whereas grassy weeds, monocotyledon, would be like crabgrass, quack grass, nut grass, and other narrow bladed grasses that you don’t want to grow in your lawn.
Most advertising would have you think that you need to apply a weed and feed to your lawn in order to control most weeds. However, for best results a weed and feed works best in the fall, about mid-September to late October, when all perennial weeds are out and are getting ready for winter.
Weed and Feeds, simplistically do two things: Kill broadleaf weeds that the chemical comes in contact with and then feeds the lawn. Read the instructions to fully understand and know how to use these products. You must have a wet lawn so that the weed killer will “stick” to the wet leaf of the weed and kill it. Don’t water you lawn for 36-48 hours after applying the product. The weeds that this will kill are weeds that are already leafed out. A Weed and Feed will not prevent weeds from sprouting unless it contains a pre-emergent chemical.
There are pre-emergent type of weed controls that when applied correctly will prevent weeds from growing. However, they mostly will NOT kill already growing weeds. Make sure that you again read, understand, and follow the label directions so that you will not miss-use the chemicals and then have problems where you have applied the chemicals.
Then you do have the liquid spray chemicals that you would mix up in a spray tank or connect to you hose and then apply the liquid mix to the weeds in your lawn. This is the method I prefer to use in my lawn, because I can spot treat only in the areas that I need too.
Be careful when you use any type of chemicals on your lawn. Always read and follow the instructions. Wind can carry the chemicals to plants nearby causing damage to them, be careful. However, when used correctly, herbicides can offer you a nice reward with a beautiful weed free lawn.
Do you have a gardening question? Ask us! Leave a comment here or e-mail us your question @ email@example.com . We will answer your gardening question here in the Ask the Gardener column published each Monday, or in our monthly newsletter. Happy Gardening!