Aphids vs. Ladybugs---Aphids Winning!!
I've got several three year old pluot and aprium trees that are heavily infested with black and green aphids. I've been organic for three seasons now, so I did have some native ladybugs at work. To supplement, I bought a carton and turned them loose, too.
It must be a super good spring for aphids, because even though the ladybugs and now, their larvae are eating away, it's not even putting a dent in the dumb aphids.
What can I use that won't totally knock out the ladybugs? I was thinking of a castile soap mixture, but didn't know if that would hurt the ladybugs.
Unfortunately, I don't have a hose that will reach out there to use water power to knock the aphids off. Any suggestions?