All the above characteristics make BEG an annoying weed in lawns. It hides in turfgrass very well until the turf goes dormant in the dead of winter, leading most homeowners to ignore it until it becomes a problem in the spring. At this point, BEG is nearing maturity and is more difficult to control without damaging the turfgrass. BEG also thrives in our climate and can outcompete poorly managed turfgrass, especially if the lawn exhibits the soggy, compacted conditions that heavy lawn foot traffic and winter/spring rainfall cause. So, what is a homeowner to do?
After implementing the above cultural practices in your lawn management regime, you may also need chemical herbicides to achieve a clean cool season lawn. There are two basic options for BEG control. First, a fall (mid-late October) application of a pre-emergent herbicide like dithiopyr, prodiamine, or pendimethalin can be very effective at preventing winter weeds from occurring at all. If you happen to miss this fall pre-emergent application, a timely post-emergent application of 2,4-D or other general broadleaf herbicides works nicely as well. (BEG and other cool season weeds are best controlled with post-emergent herbicides in December and January before they mature and begin to set seed. Plan applications accordingly!)
Winter Annual Weeds, a Great Place to Hide Easter Eggs
To start your journey to the best tomatoes, start with UF/IFAS Gardening Solutions – Tomatoes https://gardeningsolutions.ifas.ufl.edu/plants/edibles/vegetables/tomatoes.html
If you need additional assistance with weed control, please contact your local county extension office. Please tune in for future GIP LIVE episodes for more research-based information on gardening topics.
What is a Weed?
You should now see why timing is important when controlling these weeds.
A plant clinic will be held from 10 a.m. to 1 p.m. on Friday, Oct. 9 in Fort Walton Beach at the Okaloosa County Extension building, 127 W. Hollywood Boulevard.
For season-long weed control, a second application should be made about six to nine weeks after the initial application, based on the label instructions.
These and other winter annual weeds germinate from seeds during fall as the soil temperature cools and the day length shortens. The seedlings usually go unnoticed but continue to slowly grow through the colder winter months. Approaching spring, as the day length becomes longer and the soil temperature warms, these previously inconspicuous weeds put on a growth spurt.
The clinic is designed to provide an opportunity for people to bring in samples of plants for diagnosis, including weeds for identification.