Re: Is this iris nutrient deficient?
- Subject: Re: Is this iris nutrient deficient?
- From: John Jones <email@example.com>
- Date: Sun, 8 Apr 2012 15:42:25 -0700
You should also be aware that imidacloprid is toxic to honeybees feeding on
the pollen and nectar of those plants.
On Apr 8, 2012, at 2:46 PM, Bill Chaney wrote:
> I am a retired entomologist, turned iris breeder, and I spent a 20 year
> career trying to find ways to control aphids. There are a number of
> biological controls that can be effective, but for any biological control
> to work, a population of aphids must be tolerated before the control works.
> Ladybugs and green lacewings are your best bets for biological controls
> that can be purchased, but naturally occurring populations of beneficial
> insects are always best, but somewhat unreliable.
> The good news is that there is an effective insecticide on the market that
> is much safer that disyston. The product is imidacloprid. Look for it in
> the active ingredient list. It is systemic and quite effective on aphids.
> Always read and follow label directions, but I have used it with great
> From: "firstname.lastname@example.org" <email@example.com>
> To: firstname.lastname@example.org
> Sent: Sunday, April 8, 2012 9:54 AM
> Subject: Re: [iris-photos] Is this iris nutrient deficient?
> Yes I do have aphids. Would they prefer one variety over the other
> Arilbreds around them? Question is what to use to get rid of the critters.
> Soapy water doesn't get into the crevices. You can buy ladybugs. But the
> first thing they will do is exercise their wings and fly away. Anybody
> know anyway to keep the ladybug critters in the yard? You can buy preying
> mantis eggs. But they are cannibalistic and the first ones out will fatten
> themselves on the siblings. I don't know how to break apart the eggs from
> each other without damaging the eggs. Anyone try green lacewings?
> I miss Disyston (spelling), but that has now been outlawed. Anyway, I am
> trying to encourage the beneficial bugs.
> In a message dated 4/8/2012 9:03:26 A.M. Mountain Daylight Time,
> email@example.com writes:
> I have seen this type of damage with aphids and aphids love arilbreds!
> Dana D. Brown
> Malevil Iris Gardens & Kennels
> www.malevil- iris.com
> Lubbock, TX 79403
> Zone 7 USDA, Zone 10 Sunset
> ddbro@sbcglobal. net
> Home of:
> Irongate's Racy Tracy
> Irongate's Kisses In The Wind
> Merrimac's Amarula CGC TDI
> CH. Merrimac the Agean CDX, RE, CGC, TDI
John and Joanne Jones
American Iris Society
35572 Linda Drive
Fremont, CA 94536
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