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  • From: "Michele Stanton" <6ducks@gmail.com>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Japanese Beetles
  • Date: Sat, 21 Jun 2008 20:43:11 -0400

Hi All,
Those of you with lots of J.Beetles: Did you have a rainy summer last year?
In Ohio, the growing degree days associated with adult Japanese beetle emergence are 970.  We just passed 1100 but I haven't seen a one.
(I'm not complaining!)  Last summer here we had a drought, and since Japanese beetle grubs usually need moist soil/roots for development during mid to late summer, I'm hoping that our populations will be low.  A drought ought to have a positive side!
 
OSU/Oardc publishes a running GDD calculator on line.  I'm guessing other states might have similar info available.
Michele in SW Ohio.


  • [NAFEX] Japanese Beetles, Michele Stanton, 06/21/2008

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