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已读[439] 发布: 2013/06/22 15:35:54
OregonLive.com Officials in the Oregon Department of Agriculture have confirmed the insecticide Safari caused the deaths of 25,000 bumblebees in Wilsonville this week....
已读[63] 发布: 2013/06/16 22:10:13
已读[403] 发布: 2013/06/16 11:17:16
The Daily Camera The decline of bee colonies began accelerating in the United States shortly after the Environmental Protection Agency allowed the neonics imidacloprid and clothianidin on the market in 1994 and 2003. A general consensus of beekeepers is that die offs ...
已读[60] 发布: 2013/06/16 06:09:31
已读[63] 发布: 2013/06/14 18:12:21
已读[176] 发布: 2013/06/13 13:44:33
Delphos Herald Mississippi State University offers the following explanation on purple corn. “Corn growth is often stunted and lower corn leaves turn purple as a result of phosphorus (P) deficiency. Phosphorus's primary role in a plant is to store and transfer energy ...
已读[64] 发布: 2013/06/13 08:57:32
已读[74] 发布: 2013/06/12 05:03:50
已读[37] 发布: 2013/06/12 05:02:59
Wall Street Journal All three Alpine formulations -- dust, foam and aerosol--feature the new non-repellent active ingredient Dinotefuran , which has been granted "reduced risk" status for public health use by the Environmental Protection Agency (EPA). "Reduced risk" is a ...
已读[62] 发布: 2013/06/11 07:09:29
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