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Hi Jim & All, May 9, 2011
Picking insects takes me back to the early 40's when for a while we controlled the Colorado Potato Beetle by picking the larvae from potato plants.
Then we got really advanced and made Bordeaux mixture by crushing copper sulfate and mixing the powder with hydrated lime. This was applied using a shaker made from a square of burlap bag.
I had assumed that the Cu killed the larvae but Lochhead (1919; Economic Entomology) calls Bordeaux a repellant for Flea Beetles and Striped Cucumber Beetles when applied as a spray.
So Bordeaux spray might be effective (if allowed) but I wonder if avoiding host plants as ornamentals would not be most effective.
Yt, Dave Webster
----- Original Message -----
From: James W. Wolford
To: NatureNS
Cc: Chris Majka
Sent: Sunday, May 08, 2011 11:11 PM
Subject: [NatureNS] red lily beetles!
Picking them did work for us here in Wolfville, although we didn't have very many tiger lilies -- that was several years ago, and we had only a few beetles in the following year, none since then that we have seen. Jim in Wolfville
Begin forwarded message:
From: Lois Codling <loiscodling@hfx.eastlink.ca>
Date: May 8, 2011 9:50:43 PM ADT
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Red Lily beetles!
Reply-To: naturens@chebucto.ns.ca
Aren't they awful, Angela? I used to have a lot of lilies, various kinds, but thanks to these monsters I now have none. Have read in gardening mags. that the best way to deal with them is hand picking, as you have done. I wasn't able to keep up with them. Good luck!
Lois Codling
On 08/05/2011 9:37 PM, AngelaJoudrey wrote:
While out and about weeding this evening, I found red lily beetles. Argh.
Once I saw the eaten leaves on the lillies, it was much easier to squish them to thier death and let them rot into the ground.
Has anyone tried Neem oil? Or dish soap and water as a spray?
I think I might just pull them up and replant them on a dog walking trail far from the gardens, which is just transplanting the problem I guess, however I'm having a hard time ripping out the plants after they survived the winter.
Angela in Windsor
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<DIV><FONT size=2>Hi Jim & All,
May 9, 2011</FONT></DIV>
<DIV><FONT size=2> Picking insects takes me back to the early
40's when for a while we controlled the Colorado Potato Beetle by picking
the larvae from potato plants. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> Then we got really advanced and made
Bordeaux mixture by crushing copper sulfate and mixing the powder with
hydrated lime. This was applied using a shaker made from a square of burlap
bag. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> I had assumed that the Cu killed the larvae
but Lochhead (1919; Economic Entomology) calls Bordeaux a repellant for Flea
Beetles and Striped Cucumber Beetles when applied as a spray.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> So Bordeaux spray might be effective (if
allowed) but I wonder if avoiding host plants as ornamentals would not
be most effective. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Yt, Dave Webster</FONT></DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=jimwolford@eastlink.ca href="mailto:jimwolford@eastlink.ca">James W.
Wolford</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=naturens@chebucto.ns.ca
href="mailto:naturens@chebucto.ns.ca">NatureNS</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=c.majka@ns.sympatico.ca
href="mailto:c.majka@ns.sympatico.ca">Chris Majka</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, May 08, 2011 11:11 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NatureNS] red lily
beetles!</DIV>
<DIV><BR></DIV>Picking them did work for us here in Wolfville, although we
didn't have very many tiger lilies -- that was several years ago, and we had
only a few beetles in the following year, none since then that we have seen.
Jim in Wolfville<BR>
<DIV><BR>
<DIV>Begin forwarded message:</DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica; COLOR: #000000"
color=#000000 size=3 face=Helvetica><B>From: </B></FONT><FONT
style="FONT: 12px Helvetica" size=3 face=Helvetica>Lois Codling <<A
href="mailto:loiscodling@hfx.eastlink.ca">loiscodling@hfx.eastlink.ca</A>></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica; COLOR: #000000"
color=#000000 size=3 face=Helvetica><B>Date: </B></FONT><FONT
style="FONT: 12px Helvet