Lilies forum: Possible new credible eradication of Lily Beetle!!

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Name: Frank Mosher
Nova Scotia, Canada (Zone 6a)
Lover of wildlife (Raccoon badge) Birds Roses Clematis Lilies Peonies
Region: Canadian Photo Contest Winner: 2017 Million Pollinator Garden Challenge
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fwmosher
Jan 21, 2018 5:52 PM CST
I don't want to assert for certain, that there may be a creditable eradication of the cursed Lily Beetle, but I think there may be!! I have a lot, really a lot, of "real" lilies- Oriental, Trumpet, Orientalpets, etc. Last year I read an article online about a certain "wasp" that would attack the lily beetle larvae clump which they lay under the lily leaves. That black goop! (If you squish it, there are baby lily beetles in it), and they will strip your lily plants of leaves in no time. Up until last year, I methodically went around each morning and "captured" all the adult lily beetles I could find. You don't want to know what happened to same. Anyway, can't remember where I read about this tiny wasp that you could release by your lilies, and they would attack the larvae. So, in 2016, I contacted the author, (researcher at a University) and asked if I could obtain some? She replied promptly, asked for my mailing address, and promised that she would ship me a vial of them in 2017. The condition was, that I was not to interfere with my lily bed, no squishing, no smearing larvae, just leave the lilies alone. In this manner, one may be able to judge the merit of the wasps. So I was shipped a vial of live wasps in a tiny pill bottle, and 99% were alive upon arrival! Note: These are extremely tiny wasps, the size of a blackfly or a healthy fruit fly. They do not grow any larger, and they are harmless to humans, etc. So, being very familiar with medical and scientific studies, (crossover blind, etc,) I played by the stated rules, and just released the wasps in one of my lily beds, as soon as they were received. We had a very mild summer this year, and without question, at the end of the summer, I particularly noted that the leaves on these lilies were NOT fragmented/stripped like in previous years!! Anecodatal?? Yes, but from a lot of experience with lilies! Perhaps this is common news to most of you, but for those who are not aware of it, there is hope!! Cheers!
Name: Dave
Southern wisconsin (Zone 5b)
Region: Wisconsin Peonies Bulbs Seed Starter Pollen collector Plant and/or Seed Trader
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Nhra_20
Jan 21, 2018 6:54 PM CST
I read about this in an article by Canna, and a couple other places. I knew it was on trial in some locations like the Massachusetts area and parts of Canada
Name: Tracey
Wisconsin (Zone 5a)
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magnolialover
Jan 21, 2018 8:51 PM CST

Moderator

Frank, thank you for the very informative piece you placed here for us to read. The lily beetle is no joke and is of great threat to lilium. Good to hear there may be hope here.
Tracey
Name: Rick R.
near Minneapolis, MN, USA zon
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Hybridizer
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Leftwood
Jan 21, 2018 9:09 PM CST
Yes, we need to be careful about making strong assumptions too quickly, but this is exciting news!

and just released the wasps in one of my lily beds.,... I particularly noted that the leaves on these lilies were NOT fragmented/stripped

And what of your other lilies in other beds? And were they the same types of lilies?
Name: Frank Mosher
Nova Scotia, Canada (Zone 6a)
Lover of wildlife (Raccoon badge) Birds Roses Clematis Lilies Peonies
Region: Canadian Photo Contest Winner: 2017 Million Pollinator Garden Challenge
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fwmosher
Jan 22, 2018 8:59 AM CST
Good question Leftwood! I have another large Oriental Bed on the opposite side of the property, and I have had to "farm" the adult beetles, every year. This bed in question holds up pretty good - perhaps there are too many to choose from. That was my observation on this bed last year, in that it was not stripped unduly. I will watch with keen interest what happens to this bed this year. This year also, it will be interesting to see how the "test" bed opens. If it is loaded with lily beetles, one would be inclined to think that the wasps did not make a difference? We will see, however, it may take a year or two for the wasps to establish themselves? We will see! I will watch with interest the many other Oriental/trumphet lilies I have, known to have lily beetles in the past years. Will make an honest report at end of growing season, or before if results are good. Smiling
Name: Rick R.
near Minneapolis, MN, USA zon
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Hybridizer
Seed Starter Plant Identifier Million Pollinator Garden Challenge
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Leftwood
Jan 22, 2018 11:57 AM CST
What does "on the opposite side of the property" mean? If you farm, you own many hectares? Between the beds, are we talking 100m, 300 meters....?

edited to take the farming stuff out. I had you mixed up with someone else.
[Last edited by Leftwood - Jan 22, 2018 12:08 PM (+)]
Give a thumbs up | Quote | Post #1626120 (6)
Name: Frank Mosher
Nova Scotia, Canada (Zone 6a)
Lover of wildlife (Raccoon badge) Birds Roses Clematis Lilies Peonies
Region: Canadian Photo Contest Winner: 2017 Million Pollinator Garden Challenge
Image
fwmosher
Jan 23, 2018 11:59 AM CST
Leftwood, about 100'.
Name: della
hobart, tasmania
Celebrating Gardening: 2015 Photo Contest Winner: 2015
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dellac
Jan 25, 2018 5:34 AM CST
Gratefully, not affected by Lily Beetle here in Aus., but I can hear your excitement, Frank! Good on you for encouraging and taking part in research into what could be a brilliant biological solution. Thumbs up

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