Here in Northeastern Illinois we find that the gypsy population goes through a boom and bust cycle. This year many are hanging dead on the tree trunks without any spraying, which kills who knows what else. If you have an infested tree in your front yard that you like, then sure treat it in some way. If you are growing timber and the infestation is so bad that you are losing crop, then yes treat it. But please make sure there is a necessity before you bombard us all with something that may kill every caterpillar in the forest.

may require different strategies. In the case of the population in the village of Suring, it could be simply controlled with the use of a burlap bags wrapped around the tree for infestations highly localized. It is unknown if other areas of Suring are seeing a boom of Gypsy moths. I've been to Lakewood WI. This small town is nestled in the middle of the Nicolet-Chequamegon National Forest, which is a federal issue. There are a lot of forest areas and finding Gypsy moths in Lakewood may or may not be localized and the potential for spreading is likely. In that situation, aerial spraying may be nescessary to minimize the gypsy moth's impact to the surrounding area. I don't know how numerous these caterpillars are in his area where he found them.