To the Editor:
Blooming in many people’s yards right now is a small yellow flower that, upon closer inspection, proves not to be a dandelion. Variously called lesser celandine or fig buttercup, its radical invasiveness triggers a predictable progression of emotions in the homeowner. Delight at its pretty flower soon turns to alarm as year by year it takes over the yard, spreading through flower beds, across lawns and into neighboring properties. What may start as a few scattered, harmless-seeming clumps quickly becomes the equivalent of a rash upon the landscape. Unlike the dandelion, lesser celandine also spreads into nature preserves. Poisonous to wildlife, it forms thick stands reminiscent of pavement. Over time, our nature preserves become less and less edible to the wildlife they were meant to support. Native diversity shifts towards non-native monoculture.
The solution to this aesthetic and ecological problem is straightforward. Learn to identify the plant’s flower and leaves, catch infestations early, then spot spray with a systemic herbicide that will kill lesser celandine’s tenacious roots. This simple prescription, however, often comes up against various romantic views of nature. There’s the let-it-be view that nature will take care of itself. This has been repeatedly proven untrue but has the enduring appeal of excusing the individual from taking action. There’s also the common, seemingly high-minded view that all synthetic pesticides are “poisons.” Yet organic means of controlling lesser celandine have not proven practical. Digging more than a few up is not only time-consuming but also means more trash headed to the landfill. So-called organic herbicides don’t kill the roots. It’s worth noting that most people who prefer organic foods also take synthetic medicines to defend the body from invasions. Those medicines invariably have toxicities, which we minimize by limiting the dose. The same holds for synthetic herbicides to mend nature. more