How do I control the insects eating my hibiscus leaves?
This is damage caused by hibiscus sawfly. They eat the leaves between the veins. They are hard to see because they are the same color as the leaves. UT Extension Agent Chris Cooper talks about some control options.
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Related Videos:
Horticultural Oils
How do I control the hibiscus scentless plant bug on my rose of Sharron?
Related Resources:
Hibiscus Sawfly
Sawflies on Herbaceous Perennials