Have you noticed trees this summer that have one brown branch and wondered why?

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My first guess answer, maybe yours too, was that the amount of rain had created this phenomenon. After all, if too little rain causes leaves to turn colors early, then perhaps too much rain or rain in floodlike downpours causes an isolated brown branch. OK, this sounds dumb but you have to start somewhere. That’s the scientific method.
This guess answer is wrong. According to the Missouri Department of Conservation, “branch flagging,” when “brown leaves appear on individual branches scattered throughout the tree crown”  is caused by “periodical cicadas” laying eggs.  So cicada season=brown branch season. Isn’t it satisfying to know?

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