Talstar P could potentially harm earthworms and other benficials should they come in contact with it; however, a surface application would not get deep enough into the soil for this to be an issue. Keep in mind, also, that earthworms have a coating that protects them from exposure to many products that would easily kill insects.
Wasp Freeze is a product that will kill wasps if they are sprayed mid-air; however for long-term results, it works best on exposed nests that you can spray directly. If you see where they are entering, we recommned that you use a hand duster and apply a dust such as Tempo dust to the holes where the wasps are going in and out. The dust will help eliminate the wasps in the nest and any other wasps returning to the nest. Tempo dust will stay effective for several months as long as it is dry. After dusting in the void where the wasps have a built a nest you can try spraying the siding with a product such as Talstar P. You can spray once a month and any wasp that lands on treated areas will be eliminated within about 24 hours which should stop new wasps from being able to build a nest.