Fall Weed Control In Pastures

Fall is one of the best times for managing perennial and biennial weeds found in pastures or other areas maintained in perennial grass.

Fall weed control in pastures.

However some perennial weeds are effectively controlled by fall herbicide applications. The most common herbicides used for control of many broadleaf weeds in grass hay pasture this time of year are the plant growth regulator herbicides such as 2 4 d dicamba banvel clarity etc triclopyr products crossbow garlon etc and clopyralid stinger pasturegard etc. Fall is not generally the right time to control many pasture weeds. For instance metsulfuron containing herbicides chaparral can give excellent weed control but also can suppress tall fescue yield if used in the spring.

P and k level increases also resulted in fewer weeds. Fall is a good time to treat for weeds such as cogongrass blackberries dewberries biennial thistles and chinese tallow trees. If you are struggling with chickweed in grass hay or pasture a combination of dicamba plus 2 4 d will provide some suppression 70 80 control. In particular biennials such as common burdock and bull and musk thistles are much easier to kill while they are in the rosette stage of growth and prior to surviving a winter.

If you use herbicides to control pasture weeds carefully think through the timing says bradley. Fall is the best time to control some notorious weeds in pastures and other grasslands according to north dakota state university extension specialists. As perennials prepare for the upcoming winter they move energy reserves from shoots to their perennial vegetative reproductive structures e g. This tank mixture works better on chickweed in the fall compared to spring applications where it typically provides only about 50 60 control.