George - The "good luck" was meant for anyone that finds this particular plant specie in their pond. At this point, a minnow seine may be the only viable management option - short of draining the pond.
For what its worth, I am presently working with a manufacturer on a potentially new aquatic herbicide - presently operating under an EUP (experimental use permit) issued by the EPA. I would be interested in locating a pond (that contains slender spikerush) in which we could run some trials under the EUP. If interested in hearing more details, email me with the specs on your pond (regarding the EUP product: fishing, swimming & livestock watering are OK, but irrigation is not)
