Revised November 2009

Order copies
IPM1007, Practical Weed Science for the Field Scout: Corn and Soybean

  • Price: $4.00
  • Availability: 1000+

Download a free PDF of this publication (13285KB). PDF help

Printer-friendly version of this page

Guidelines to reprint or copy

Contents

Related publications

Use our feedback form for questions or comments about IPM1007.

Find publications

Search MU Extension publications.

ADA Accessibile AddThis Widget
MU Extension near you

Page: « First    ‹ Previous    Next ›    Last »


Practical Weed Science for the Field Scout: Corn and Soybean

Hemlock, poison (Conium maculatum)

Biennial broadleaf

Poison hemlockPoison hemlock
 

Poison hemlockA taprooted biennial that may reach as much as 10 feet in height. Primarily a weed of pastures and roadsides throughout the United States, but becoming more problematic in no-till cropping systems. Leaves are alternate, triangular in outline, 8 to16 inches long, finely divided, and often have a dark glossy green appearance. Stems that are produced during the second year of growth are erect, branching, without hairs, ridged, hollow except at the nodes, and distinctly purple-spotted. Large white, flat-topped flowers (compound umbels) occur at the ends of the branches.

Poison hemlock
 

 

Wild thing
 

Page: « First    ‹ Previous    Next ›    Last »


IPM1007 Practical Weed Science for the Field Scout: Corn and Soybean | Page 63 | University of Missouri Extension