Information on weed identification and control, including catsear, marestail, purple loosestrife, pokeweed, pigweed, poison ivy, crabgrass, hemlock, purslane and multiflora rose. Tips on various herbicides and integrated pest management.
Online Courses Sections2 Length30 minutes
Learn management and herbicide use for weeds such as lambsquarters, Palmer amaranth, foxtails and crabgrass. Earn pesticide applicator recertification credits.
More Online Courses Sections2 Length30 minutes
Learn management and herbicide use for perennial weeds such as multiflora rose, bindweeds and hemp dogbane. Earn pesticide applicator recertification credits.
How to best prevent the entry of herbicide resistant Palmer Amaranth and waterhemp to new fields, and how to properly dispose of plants so that they do not cause larger infestations.
More Guides and Publications
By Dwight Lingenfelter, William S. Curran, Ph.D. Pages258
Get strategies and peruse herbicide tables for managing weeds in corn, sorghum, soybeans, small grains, legumes, grass forages, and pastures.
Herbicide recommendations for management of noxious pigweeds in corn, soybean, and forages.
For palmer amaranth and waterhemp.
By William S. Curran, Ph.D., Annie Klodd
Palmer amaranth is a species of pigweed that was recently introduced into PA and has been positively identified on more than 30 sites across the state.