Image Number K7790-13 |
Iowa State University plant pathologist Charles Block (left) and ARS horticulturist Mark Widrlechner inspect cages that keep bee pollinators inside and exclude outside sources of pollen.
Photo by Scott Bauer.
Image Number K7790-13 |
Iowa State University plant pathologist Charles Block (left) and ARS horticulturist Mark Widrlechner inspect cages that keep bee pollinators inside and exclude outside sources of pollen.
Photo by Scott Bauer.