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Anonymous
I haven't heard that about this particular spider. I haven't researched it, but it doesn't really make sense: many bugs that bother plants are tiny and hide under and between leaves constantly. Others never fly at all. Tiny & non-flying insects are unlikely to be caught by a web-spinning spider, at least not in any kind of serious quantity.
That being said, spiders ARE welcome in the garden, as they do eat many kinds of bugs, but most gardeners that I know of prefer hunting type spiders rather than webspinners. There are various insects that are also plant-friendly and eat the harmful bugs. You can buy some of these at garden stores: Ladybugs and praying mantises are some of the most commonly used for this purpose. They don't bother the plants but they eat other bugs that do.
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