A study by Montana State University found that a vehicle driven through only several feet of spotted knapweed picked up around 2,000 seeds. While only 10 percent of the seed’s gathered remained in the vehicle after being driven for 10 miles, it proved how easily harmful weeds can be spread through vehicles and equipment.
The website also outlines seven steps for everyone to follow to prevent the accidental spread of invasive species.
Buy Local, Burn Local.
Invasive pests and their larvae can hide and ride long distances in firewood. Don't give them a free ride to start a new infestation. Buy firewood where you burn it.
Buy your plants from a reputable source and avoid using invasive plant species at all costs.
Don't Bring or Mail.
Don't bring or mail fresh fruits, vegetables or plants into your state or another state unless agricultural inspectors have cleared them beforehand.
Cooperate with Quarantines.
Cooperate with any agricultural quarantine restrictions and allow authorized agricultural workers access to your property for pest or disease surveys.
Keep It Clean.
Wash outdoor gear and tires between fishing, hunting or camping trips. Clean lawn furniture and other outdoor items when moving when moving from one home to another.
Learn to Identify.
If you see signs of an invasive pest or disease, write down or take a picture of what you see and then report it to your state.Top of FormBottom of Form
Declare all agricultural items to customs officials when returning from international travel. Call USDA to find out what's allowed.
Call (301) 851-2046 for plant questions.
Call (301) 851-3300 for animal questions.