Japanese beetle. University of Wisconsin Cooperative Extension.
On this day last year, I announced my first sighting of Japanese beetles. Today, no beetles are munching on my vines. Last year, I declared that I would pinch off the bugs rather than wrap the vines in garden netting to keep the bugs away. However, last year, I relented due to the numbers. If they do arrive this year, I will stand firm with the pinch-off approach. I have discovered, after several years of infestation, that the beetles munch the leaves but don't seem to harm the grapes. And when the bugs go away, the vines generate a modicum of new leaves.
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