Knowledgebase
Tiny white bugs on sour cherry tree #876393
Asked July 08, 2024, 5:06 PM EDT
Washington County Oregon
Expert Response
To control aphids, take a hose with the strongest nozzle you can find and spray a harsh stream of water during the heat of the day to knock them off. Keep the area around the base of your tree weed free, as some of the weeds here are great harbors for aphids. If you can't wait for the ladybugs and lacewings to show up and get control of the outbreak, you can spray an insecticidal soap or horticultural oil (available in most garden sections) on the tree.
Be sure not to fertilize the tree as too much nitrogen also encourages aphids and keep it watered to maintain health over the summer. Cherries take a lot of work in the Willamette Valley but I love tart cherries and their health benefits are being touted everywhere these days!
Good luck and if this doesn't work, send in some pictures of the bugs.