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[NAFEX] Japanese Beetles

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