-Stephen Komar
I have seen a marked increase in the number of pastures and hay fields infested with Horsenettle this season. This weed is a major concern since it can limit the marketability of hay due to the sharp prickles found on the stem and can quickly take over a field due to the large number of seeds produced and spreading rhizomes. Fall herbicide applications can be effective in managing this weed.
For more information, please visit the Mid-Atlantic Pasture Management Guide.
August 30, 2012 Administrator
Horsenettle in Pasture and Hayfields
August 24, 2012 Administrator
Reducing Weed Seed Production in Harvested Fields
By WCU Editor
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu
Corn harvest has begun in some areas and the drought has resulted in large areas with stunted plants and very poor leaf development for shading weeds. Both of these situations have created conditions for late season weed growth that could result in significant weed
Source: Weekly Crop Update
August 2, 2012 Administrator
Cleaning Equipment to Prevent Spreading Weed Problems Around
By WCU Editor
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu
This summer has been very challenging for weed control so I want to remind you to not spread the problems around the farm or from farm to farm. I believe that a lot of our new weed infestations are due to transporting seed on
Source: Weekly Crop Update
July 27, 2012 Administrator
Daconil Action Fungicide
By Bruce Clarke
Have received several questions from golf course superintendents over the last few days about potential phytotoxicity from the use of Daconil Action (cholorthalonil + acibenzolar) on golf course greens and fairways. I have worked with Daconil Action for 7-8 years and have not seen any “unique” phytotoxicity associated with that…
July 27, 2012 Administrator
Bacterial Decline of Creeping Bentgrass
By Bruce Clarke
Several golf courses in the tri-state area have reported symptoms of etiolation and decline of creeping bentgrass putting greens. In some cases, the etiolation has occurred in isolated areas and then disappeared, but in other situations etiolation has progressed into a gradual decline of affected turf. Patches can range from…
July 23, 2012 Administrator
Crabgrass Continues to Emerge
By Jim Murphy
Recent rains have stimulated more crabgrass to emerge. This will probably continue through the end of the month. If applied preemergence herbicides, especially early in the spring, you may start to see “breakthrough”. If have decided to control crabgrass postemergence (manually or with postemergence herbicides), you should scout for emerging plants after…
