Q. Can you suggest a home remedy non-chemical solution to control aphids?
Here's a home remedy recipe to control aphids (courtesy of the American Orchid Society's Orchids, June 2014 issue):
1 onion finely chopped
2 cloves of garlic finely chopped
1 tsp. liuid dish soap
2 cups of water
Blend in a blender and strain out pulp. Pour liquid into a hand-held sprayer. Will need to reapply regularly.