Dish Soap

[n-green]

Can someone please tell me the proper amount of soap to use in a backpack to control aphids and help get rid of the honeydew on a crepe myrtle. Thanks in advance.

[upidstay]

I think it's a tablespoon or two per gallon

[Gerry Miller]

I would suggest you dilute some seaweed with water and spray that on your plants. It works better than soap and adds good things to your plant's soil.