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You are here: Home / Warm winter is a matter of degrees

Warm winter is a matter of degrees

By Curt Kipp — Posted February 18, 2010

It’s been a warm first couple months of 2010 in Western Oregon, no question. You might be surprised just how warm. Here’s some information from Robin Rosetta that puts it into perspective:

With our warm spring, you might want to consider using degree days (heat unit accumulation) to monitor the phenological status of your crops and pests. There is a great website at the Integrated Plant Protection Center at OSU that can help with that. I just checked on degree days here at NWREC. With a base threshold of 41 degrees F, we’re at 282 degree days as of 2/16/2010 in Aurora. We didn’t hit that until March 31 in 2009. We almost a month ahead of last year. There are lots of utilities at this Web site: http://uspest.org/wea/. More specifically, you can check on locations near you and use your own thresholds at this OSU IPPC Web site: http://uspest.org/cgi-bin/ddmodel.pl?spp=aaa.

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Filed Under: Uncategorized Tagged With: Biological Pest Control, Climate Change, Pests and Diseases, Plants, Weather, Wholesale Nurseries

About Curt Kipp

Curt Kipp is the director of publications and communications at the Oregon Association of Nurseries, and the editor of Digger magazine.

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