I'm new to this forum so please forgive me if this topic has been raised before.
I have two questions about a whitefly infestation on my basil and oregano.
1. Are the leaves still edible (many have that silvery "honeydew" slime on them) if I wash them carefully before ingesting?
2. I managed to keep the whitefly numbers down for a while through a combination of blasting them off with a fairly strong water spray and applying a dish soap spray -- but they're back. How can I get rid of them for good, without resorting to drastic measures such as simply dumping the plants and starting over?
Thank you in advance for any advice!