|
|
|
Weeds
Volume 57 Number 8 Date 05/30/2012 WILD PARSNIP - Mechanical control of wild parsnip is advised at this time. Plants along roadsides are already 1-2 feet tall and will become increasingly difficult to manage by mid-June. Mowing plants is an option, but is usually a less effective approach than removal in the long-term. Protective equipment must be used when handling wild parsnip to prevent exposure to its phototoxic sap. SOYBEAN WEEDS - Control of weeds in soybeans should occur 9-19 days post-emergence depending upon row spacing, and sometimes again prior to canopy closure. The need for a second application of glyphosate or another material is based on the density and timing of secondary flushes of weeds. Roundup Ready soybeans, despite appearing vigorous, can suffer yield loss if weeds are allowed to grow beyond 4-6 inches. --Clarissa Hammond, DATCP Weed Scientist 
|
|