Pyrethrin Question for Iris

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by TheGardenerGuy on March 22, 2006 12:14 PM

Has anyone used this on their iris to control the iris borers? We have a big problem with these pests where we live... [Mad]

I was wondering how well it worked and if the powder or spray is more effective. [dunno]

Greg

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In the midst of the storm..I find the greatest Peace. I don't know what tomorrow holds..but i know Who holds tomorrow. [angel]

by Buglady on March 23, 2006 03:48 AM

if you use a spray you need to use it when the adults are out and laying eggs. This is temperature dependant for your area. Once the borers are inside they pyrthrins are worthless.

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The Buglady
Suzanne Wainwright-Evans, www.bugladyconsulting.com
Educating the world... one bug at a time

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