Hi Bob, How do you apply them for borers? As a foliar spray? Some instructions talk about injecting them into the insect burrows in the plant stalks. Dell -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Robert Hoel Sent: Tuesday, May 25, 2010 2:51 PM To: pbs@lists.ibiblio.org Cc: Dell Sherk Subject: [pbs] Beneficial Nematodes Dell, I am a regular user of beneficial nematodes for the same purposes in the vegetable garden and lawn as you described. I have also extended this to my bearded iris because I had such a difficult time with iris borer as I garden organically. It has been quite effective and I have had several years now where we have been "borer free." Bob Hoel Near Chicago