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Rosy Maple Moth Reproductive Cycle

6-13-16  rosy maple moth2  039

In today’s post, I inferred that further south a female Rosy Maple Moth mated more than once in a given summer.  I would like to suggest that this may not be the case. While a source I consulted stated that “for each new brood, rosy maple moth females find a different male,” the reproductive behavior of the Rosy Maple Moth is not well understood. Other sources infer that further south the larvae of the first brood mature and mate, producing a second brood, and that the second brood, at least in Florida, has time to mature, breed and produce a third brood before winter.  This would be the more typical reproductive life cycle of a moth, and while I cannot personally confirm that this is accurate, it seems more logical to me.

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5 responses

  1. Great post, as always. Any idea whether the caterpillars damage their host plants?

    June 13, 2016 at 10:39 am

    • Thank you. Apparently they can and do defoliate trees, but no permanent damage.

      June 13, 2016 at 11:02 am

      • Thank you. Don’t know whether you’re having problems where you are, but here in RI we are dealing with a HUGE infestation of a variety of caterpillars. By far, the worst I have seen in years. Trees and shrubs are being defoliated, and caterpillars are EVERYWHERE. This has continued for several weeks, and is only recently abating. Yuck!

        June 13, 2016 at 11:04 am

      • Do you know what species of caterpillar they are?

        June 13, 2016 at 12:48 pm

  2. Mostly gypsy moth and tent caterpillar. Here’s a short story about them: http://ripr.org/post/caterpillars-flourish-across-state

    June 13, 2016 at 12:55 pm

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