Merodon equestris
Peter Taggart (Mon, 19 Nov 2012 15:58:17 PST)
Shading reduces the problem, but does not stop it!
Peter (UK)
On Fri, Nov 16, 2012 at 4:29 PM, "J.Mäsgen" <neumannmaesgen@gmx.de> wrote:
Shading prevents bulbs beeing infested with bulbfly, the greater and the
lesser!