Finding a strange, foam-like brown lump on a fence post or tree branch can be surprising. It might make you pause, unsure whether to remove it or leave it alone. Before doing anything, it helps to know you’ve likely come across one of nature’s most fascinating “nurseries.” What you’re seeing is most likely the egg case of a praying mantis, known scientifically as an ootheca. This structure plays an essential role in the mantis life cycle, and spotting one is actually a positive sign for your garden. 1. The Curious “Brown Blob”A mantis egg case often catches people off guard…
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