Meadow Knapweed Control | Slide Mouse

This plant is currently being tested as a host for other approved knapweed biocontrol agents.

Meadow knapweed control. Lewis county noxious weed control board. Mechanical control watch out for knapweedpulling cutting or mowing is most effective when completed prior to seed set. Meadow knapweed page 2. King county department of natural resources and parks water and land resources division seattle wa.

Noxious weed control home about weed control. Monitor site annually until it is knapweed free for several consecutive years. Since i knew that mowing was counter productive causing the plants to flower at a lower height i decided to pull the knapweed by hand. Treat spotted knapweed before seed set monitor results and re treat to prevent seed dispersal.

I ve repeated the process for four years and have eliminated spread of the plant while steadily reducing the seed bank at the main. Knapweed invasions cause losses averaging up to 63 percent of available grazing forage. As these horrid plants make their way across the country displacing native grasses and infesting vegetable gardens alike knapweed control is at the forefront of many gardeners minds. If the plants have not yet.

Gardeners are ever at the ready waiting for an attack from the newest noxious weed knapweed is no exception. Oregon department of agriculture. It threatens wildlife habitat and causes problems for christmas tree growers. King county noxious weed control program.

Knapweed control was one of my first projects on the property. Po box 315 twin bridges mt 59754 406 684 5590 888 664 4153 fax. Noxious weed control menu. Weed management projects.

Meadow knapweed out competes grasses and other pasture species and is difficult to control. Executive office montana weed control association inc. Some approved biological control agents released for other knapweeds have become established on meadow knapweed including a seed head fly a seed head moth and two seed head weevils. The adults also cause damage by feeding on meadow knapweed leaves.

Obtusus larinus spp or the knapweed flower weevils are abundant biological control agents that can utilize spotted diffuse and squarrose knapweeds. Biological control the blunt knapweed flower weevil larinus obtusus is most destructive in the larval stage by its feeding on seeds within the flowerheads.