{Disarmed} Re: new topic - SI popularity


Iris borers appear to be quite common here in Denver, CO also. When I lived in northern California they were non-existent, but here I've found them in the one clump of TBs I inherited when I moved in and I have found them in several of my siberians this year as well (although the borers seem to prefer the larger tetraploid siberians over the older diploids). Even more distressing, I've found borers in two of the nine commercial shipments of new Siberians I ordered this year. And, in siberians, I've found it hard to detect borer damage until it is too late - usually I found out when the rhizome dies (with the center of the fan going brown) and I find the borer when I pull up the rhizome. What do list members use to keep borers out of their siberians?
 
Best Regards,
Arthur Goodwin
Denver, CO - Zone 5
 
----- Original Message -----
Sent: Friday, July 14, 2006 4:02 PM
Subject: Re: [sibrob] new topic - SI popularity

 Where I live, iris borers are rampant.  I do not know anyone growing TB's other than older varieties that do not need treating for borers.  TB foliage is awful.   
 
Some things just remain a secret forever. 
 
Claire Peplowski
z 4 NYS mts.


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