Sharon Dunford on
August 17, 2019
Peterborough, ON CANADA
My normally healthy coreopsis have a TERRIBLE infestation of aphids – so much so that I have lost the lot. I am even considering Malathion, it is so bad. Are they ordinarily susceptible to such pests? Normal soap and water, applied repeatedly, has not worked.
August 19, 2019
Even resistant plants can fall prey to them! With that being said, yes, this can be completely normal at times. There are a few things that you can do. These articles will help: https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm