Tuesday, March 1, 2011

Spring Weed Control

If you’ve got grass in your yard, it may be dormant and brown, or if you’ve overseeded for the winter you may still be enjoying a lush green lawn. Either way, your lawn will look better this summer if you start your weed control program now. Spring is the best time for weed control, according to Turfgrass Specialist David M. Kopec of University of Arizona Cooperative Extension. Summer annuals that we consider weeds like crabgrass, stinkgrass, foxtails and broadleaf weeds germinate in the spring at our low elevation.

To protect your turf from a weed invasion, you can apply one of the pre-emergence herbicides that are sold as granules or powders. They can also be found in “weed and feed” type products. It’s important to read the label and make sure that your turf is tolerant of whatever herbicides are in the product you choose. As a general guideline, the recommended time for application in the Phoenix area is around February 25 – March 5th. It’s important to time your application correctly with your irrigation so that the product soaks into the turf and does its job!

You can also use chemical pre-emergence herbicides on broadleaf weeds, and you can use products designed for weeds in your gravel areas. Most homeowners are familiar with killing existing weeds with products like Round-Up or other herbicides applied directly to the plant. If you’d rather not use potentially harmful chemicals, you can also get creative with your weed control by using salt granules or a propane torch to kill your weeds. Of course, if you’re not that adventurous, there are natural weed-killers available too. Whatever method you choose, start now before the weeds take you by surprise!