Biological control of Lilioceris lilii (Scarlet lily beetle)

Steve Shaw via pbs
Mon, 02 Jan 2017 09:08:58 PST
The University or Rhode Island Entomology Department has developed and distributed a wasp which lays its eggs in the larvae (which do the most damage) of the Red Lily Leaf Beetle and parasitizes them.  AFAIK, these have only been released in Rhode Island and Eastern Massachusetts.  It will take some years for these to be more generally distributed.  

Steve Shaw

Master Gardener Training Coordinator
Massachusetts Master Gardener Association

-----Original Message-----
From: Ernie DeMarie via pbs <>
To: pbs <>
Cc: pelarg <>
Sent: Mon, Jan 2, 2017 3:26 am
Subject: Re: [pbs] Biological control of Lilioceris lilii (Scarlet lily beetle)

As far as I am aware, there arent any biological controls that are widespread yet in the northeast.   The wiki link has some promising possibilities but I have never seen a parasitized lily beetle, and they are abundant here in lower NY.  While it may not be registered officially as a control, I find that imidicloprid applied to the shoots shortly after emerging and maybe once more when they are fully grown is the only way to control the lily beetles.   They really do a number on lilies once they find them and hand control is ineffective in my experience (or if one has a lot of lilies).  I fear what they may be doing to our wild lily populations in the northeast, not that there are many wild lilies around here, the deer would also be a problem locally.  
Ernie DeMarie
Z7/6border NY

-----Original Message-----
From: Louis Richard <>
To: Pacific Bulb Society <>
Cc: Jardins de Doris <>; Sylvain Ross <>
Sent: Sun, Jan 1, 2017 10:36 am
Subject: [pbs] Biological control of Lilioceris lilii (Scarlet lily beetle)

Hi guys,

First of all, I would like to thank you for letting me (us) join this so
interesting forum and email exchange!

Do anyone of you have any tips and experiences about biological control of
the Scarlet lily beetle beside the Wiki's informations?

Many thanks,

Louis Richard…

More information about the pbs mailing list