Janos. I think that your climate shift explains part of how the pest got a foothold. . ----- Original Message ----- From: "J. Agoston" <agoston.janos123@gmail.com> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Wednesday, June 10, 2009 2:48 PM Subject: Re: [pbs] iris fly? possible identification. Dear Adam, Thank you for your help. I grow the irises outside, but we have had a seriously warm spring, the average temperature was around 6-8° warmer than usual in april and may. (~30°C daytime)