Answer: Those beetles really are incredible. Your trees shoud be able to withstand the beetles as long as they are otherwise healthy. First off, make sure you are not inadvertently attracting them to your area with a pheromone trap. Handpicking is most effective in the early morning or evening when the beetles are moving slowly. Neem oil based sprays may serve as a repellent, so it may be doing more good than you realize. Carbaryl can be used when the infestation warrants it, being careful to read and follow the label instructions, when the bees are not present.
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