How important is competing vegetation in successful weed control?
Biological control insects alone are not the answer. Without healthy stands of desirable vegetation to take the place of undesirable weeds, bio-control cannot be successful. As the insects reduce the weed population, useful plants take their places and gain a competitive advantage. Together, bio-control agents and competing vegetation will reduce weed infestations. Encouraging desirable plants, by re-seeding or reducing grazing pressure, will greatly help the insects do their job.
If the weed infestation is small enough, it can be removed by hand or mowing. Then, by encouraging the desired plants, your weeds can be prevented from growing into a big problem.
Biological Control of Weeds, Inc.
1418 Maple Drive Bozeman, MT 59715