hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: Iris Borers

In a message dated 98-01-31 19:50:08 EST, you write:

 Anner -- I'm afraid I would lean toward the contact-toxicity rather than
 the systemic, based upon what I have experienced in my garden.

Griff, I respectfully disagree.

As you may guess... I have had at least one major iris borer tragedy and am
ever-vigilant.  I do rely on Cygon 2E for control and have enjoyed very good
results using the following system:

1.  Mix the Cygon according to label directions and take appropriate
precautions regarding skin exposure

2.  Using a large cylinder sprayer, we adjust the hose to allow for a fan
shaped spray - which is APPLIED ONLY IN A CIRCLE AROUND THE IRIS CLUMP... and
onto the rhizome.  We do not spray the leaves at all, but drench the soil
immediately surrounding the rhizome (the theory being that the plant will then
take up the chemical).

3.  First application occurs when tulips are showing first color.  2nd
application 10 days later.  3rd application 10 days later.

4.  That's all.

I long for the day when a control will be found for the moth itself.... but
until that time, this method works for us.

Kathy Guest
E. Aurora, NY

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index