Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Environmentally not that sound?

It is possible that the product is useful for large still waters;I don't believe it is suitable for residential city garden applications.All the warnings concerning skin contact and inhalation dangers (disposalof the remnants of the product through local solid waste agency's advice,washing clothes that came to contact with the product) made me feeluncomfortable. I didn't realize that is what - "Environmentally soundbiological mosquito control" means.The product needs to be distributed evenly and applied in 7 to 14 dayintervals according to "Outdoor Use" instructions. I have a small pondwith water plants and it is quite difficult to distribute evenly. Soafter I finish this bottle I will be going back to dunks - they lastwhole month and you can just throw them in and forget for 30 days.Note: the bottle that I received has a different label with additionalinformation: "Also Controls Fungus Gnats". I don't have this problembut it maybe useful for somebody who has.