iris fly? possible identification.
Adam Fikso (Wed, 10 Jun 2009 10:59:39 PDT)

Dear Janos. The pupa in the size and description you offer fits the
description of whitefly (Aleyrodes spiraedides) which is not a problem in
the Midwest near Chicago , but in California sometimes where it is much
warmer. The pupa is as you describe-- about the size of a small grain of
rice. about 8 mm long. A photo is shown on on p. 356 of The World of
Irises--, Warburton and Hamblen, 1978 . Publ: The American Iris Society,
Wichita, Kansas. I would think that any systemic insecticide would kill it
and its progeny. I'd also open up the area to more sunlight and ventilation.
If you're growing your irises in a greenhouse--this could definitely be the
pest you've got. Grow your irises outdoors, unless you're talking about
the oncocycli--but even those are sometimes best grown outdoors., except for
those from Israel, Syria and Jordan. .

----- Original Message -----
From: "J. Agoston" <agoston.janos123@gmail.com>
To: <pbs@lists.ibiblio.org>
Sent: Wednesday, June 10, 2009 7:32 AM
Subject: [pbs] iris fly?