Fall Weed Control In Pastures

Fall is a good time to treat for weeds such as cogongrass blackberries dewberries biennial thistles and chinese tallow trees.

Fall weed control in pastures. Fall is not generally the right time to control many pasture weeds. Leafy spurge and invasive thistles can be challenging to control in pasture and grasslands due to their extensive root systems says miranda meehan extension livestock environmental. 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. 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.

This tank mixture works better on chickweed in the fall compared to spring applications where it typically provides only about 50 60 control. Systemic herbicides applied at this time are translocated along with the energy. P and k level increases also resulted in fewer weeds. Fall is the best time to control some notorious weeds in pastures and other grasslands according to north dakota state university extension specialists.

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. For instance metsulfuron containing herbicides chaparral can give excellent weed control but also can suppress tall fescue yield if used in the spring. If you use herbicides to control pasture weeds carefully think through the timing says bradley. However some perennial weeds are effectively controlled by fall herbicide applications.