Ask an expert: Tips on how to mitigate sawfly damage
Updated Jan 10, 2021;
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We’ve passed the winter solstice and that means we’re on the way to spring and gardening season. If you’ve got questions, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension faculty and Master Gardeners reply to queries within two business days, usually less. To ask a question, simply go to the and type in a question and the county where you live. Here are some questions asked by other gardeners. What’s yours?
Q: For the last two years I have this bush in front of my house that produces new leaves and flowers in the spring, but as soon as the yellow flowers have bloomed it becomes infested and all the leaves get these black gritty dots, and then all that’s left of the leaf is the veins. There also appears to be little bugs on the flowers.