Perhaps within a few years we could have a post-emergent herbicide with activity against cinquefoil. As an aside, Dr. Hopen's research also showed that flooding cinquefoil at 70 F for 4 weeks also gave good, but not complete, control. In short, there are no magic answers to controlling cinquefoil. If we find a new material that will provide control it will take years for registration. For now daubing with Roundup and spot treating with high rates of Casoron are our best alternatives.
All doors are open to courtesy.
Click the title to go to the site. Differences in stems, leaves and flowers distinguish between species. Common cinquefoil leaves are palmately divided into 5 leaflets similar to strawberry leaves. Silverweed cinquefoil leaves are pinnately compound and fern-like. Silvery cinquefoil leaves are palmately divided into 5 or 7 narrow leaflets, with fine hairs on the undersides, giving it a silvery look.