Biological dandelion control...what gives.
Every spring my lawn is inundated with dandelions. I am the talk of the neighborhood because I refuse to spray for them. I tout the benefits every chance I get, pointing out the thousands of bees, goldfinches, and critters that dine on them in one form or another. Truthfully, they don't bother me one bit because I know as the weather warms their numbers dwindle and the lawn takes over. However, I have a neighbor who is not as patient as I am. Admittedly, he has WAY more dandelions than I do at this point, so I can understand his desire to intervene. Unfortunately, I've already educated him on the mowing higher approach and working to establish healthy turf by proper feeding, overseeding, aerating, etc. to no avail. I desperately want to give him some practical solutions without resorting to gallons of 2-4D being sprayed just a short distance from our water supply (we are on private wells here).
I'm wandering if anybody is aware of any biological controls that are being worked on here in the US? I know Sarritor is available in Canada, but I cannot find anything here. Also, any articles linking groundwater pollution to herbicides would be helpful.