What is the best way of getting rid of aphids in roses and quaking aspen trees?

go here and check this stuff out! i use it and i've not had one problem with mine this year! u can find the stuff at ur local walmart or lowes! great stuff

What is the best way of getting rid of aphids in roses and quaking aspen trees?
Mix water with dishdetergent....and spray away,it really works!Good luck!
Reply:After using the insecticidal soap, spray with a weak sugar water solution. This mimics the scent of the aphids, and will attract ladybugs which are nothing more than aphid eating machines. Wait a few days after the soap to apply the sugar water.
Reply:For roses you can prevent aphids from showing up by using Rose Care, a product with a systemic insectcide built in, if you just have a couple of plants, use insecticidal soap spray, this will aslo work on your Aspen if you have enough water pressure to reach all parts of the tree.
Reply:first hose them off with water then spary with water and dish soap.