说明

The street trees in our neighborhood are infected with aphids and are dropping sap everywhere. We've tried treating them ourselves with ladybugs, soapy water, etc., but there are too many trees that are too overgrown to make a dent. Our sidewalks are a mess, and car doors won't open, despite multiple cleanings. Power, phone and cable lines are entangled. Additionally, one street tree appears dead. Please help.