Want this question answered?
Sometimes. It depends on what is causing the knocking.
Yes, there are several species of biological controls that attack several of the different knapweed species found in the United States. There are excellent insects available for diffuse, spotted and squarerose knapweed.
friend
start staying naked while you are in your room. they will probably start knocking after they walk in after a few times.
I get knocking & ping noise coming from the fuel injectors
Centaurea Centaurium
by stepping on the remote or knocking down the set!
by passing the ball back and not droping it
no, change your spark plugs
Spotted knapweed is not known to toxic, though spines of mature plants could cause injury to grazing animals. See Related Links.
To stop the spread of Communism
to stop the spread of communism