Black/Green/White Fly

[marthasnan]

I keep reading about treating these with a soap solution. Forgive my ignorance - but what sort of soap makes a good / safe solution???

[shirlthegirl43]

A squirt of washing up liquid in a spray bottle of water should do the trick.

[Bren In Pots]

That got rid of the aphids on my tomato plants and with the leaves being soapy it made squishing them easier.