Released August 15, 2011, by the National Agricultural Statistics Service (NASS), Agricultural Statistics Board, United States Department of Agriculture (USDA).
I've been receiving reports of high armyworm populations this summer. You can always find some armyworms in rice fields, but I have rarely seen fields that needed a treatment due to armyworm injury. Defoliation caused by armyworms is not uncommon.
Released August 8, 2011, by the National Agricultural Statistics Service (NASS), Agricultural Statistics Board, United States Department of Agriculture (USDA).
Lower limit 55 F, upper limit 100 F May 1 to August 1 Nicolaus 2009 1513 2010 1335 2011 1278 Durham 2009 1469 2010 1350 2011 1236 Colusa 2009 1600 2010 1413 2011 1344 To date 2011 is about 4-6 days behind 2010 and about 10-12 days behind 2009, depending the average number of degree units accumulated...
Last year we had a bad blast year - several fields that had never experienced blast got the disease and some reported yield losses. This year growers and PCAs are paying more attention to try to prevent the disease from causing damage.
