Here I've found a description of the active ingredient of Dylox: http://pmep.cce.cornell.edu/profiles/extoxnet/… The toxicity to pollinators should be absent. One could try. Jacek, Poland Dnia Środa, 23 Października 2013 03:36 <gardenpt@aol.com> napisał(a) > Narcissus bulb fly (NBF) is a fly; it's in the order Diptera. Its "grub" is a maggot. > > Bayer 24 hr Grub Killer Plus is effective against "grubs" -- that is,against the youngsters of certain beetles. They belong to the order Coleoptera. So it won't work against NBF. (Sorry.) > > > Jean, in Portland, OR > > > > -----Original Message----- > From: My Tong <electric.rice@gmail.com> > To: pbs <pbs@lists.ibiblio.org> > Sent: Tue, Oct 22, 2013 2:25 pm > Subject: Re: [pbs] Large narcissus fly > > > Hi all, > > I'm a relatively new grower of Hippeastrum this year. Well, I just found a > fat NBF larvae together many smaller larvae that don't look like any of the > lesser bulb fly in quite a few of my hippeastrum pots. ... I'm curious if one can mix the Bayer 24 hr Grub Killer Plus > (Dylox) with water and use this mixture to spray in the hole to eradicate > all the larvae? ... > > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/