I sprayed malthion, but they seemed to shrug it off, so I ended up handpicking them. Interestingly, I filled the cup I dropped them into with soapy water - that did nothing. I poured a bit of malthion into the cup and it killed them right away. The hand-picking was not a problem and I’ll probably just keep doing that. However, if they show up again in numbers, I might add some soap to the malthion as a surfactant and see if its more effective when I spray it on.
Out of curiosity, have any of you found that the use of a systemic is effective?
- S