California Pest Rating for Giant Ragweed | Ambrosia trifida L. Family: Asteraceae Pest Rating: B PEST RATING PROFILE Initiating Event: This plant has been included on the CDFA noxious weed list. History & Status: Background: Giant ragweed is a large (to 2 meters tall), annual herb. The stems have black, longitudinal lines and are covered … Continue reading Giant Ragweed | Ambrosia trifida L.→
Paragraph Weeds are simply an unwanted plant in the wrong place, at the right time. The weeds can directly and indirectly impact agricultural crops and are just as costly to the environment as any other unwanted species. Weeds are simply an unwanted plant in the wrong place, at the right time. The weeds can directly … Continue reading Weeds→
The CDFA's Plant Health and Pest Prevention Services Division grants the public opportunities to comment on proposed pest ratings. The following type of proposals are available for comment:
You must be logged in to post a comment.