<H1>Virginia buttonweed</H1> <P><UL> <LI><H2>Difficult to control. Try digging if there are only a few plants. </H2> </UL><UL> <LI><H2>Repeat applications of 3-ways or 2,4-D about 4 weeks apart are needed for adequate suppression. </H2> </UL><UL> <LI><H2>2,4-D seems to have the most activity.</H2> </UL></P>