Nonchemical
Options for Delaying Weed Resistance to Herbicides in Midwest
Cropping Systems
Chris
M. Boerboom
Herbicide-resistant weeds are
becoming a major problem in the Midwest, and strategies must be
adopted to delay further selection. Strategies of rotating and
tank-mixing herbicides with different modes of actions should be
effective, but adoption may be limited and certain limitations
may exist. Therefore, integrating nonchemical practices that
indirectly lower selection pressure or restrict the growth of
resistant populations is desirable. Appropriate integration of
mechanical weeding, crop rotation, increased crop competition,
and decision aids may further delay the development of
resistance. Understanding the effect of these practices on weed
population dynamics is required to more accurately predict their
contributions toward resistance management. This knowledge will
aid in justifying the adoption of improved management systems.
Weed Technology. 1999. Volume
13:636-642 |
