Hi all,

I recently found some iris borers in some of my irises. They had the the classic signs, chew marks and dark brown mushy areas near the chew marks and rhizome. So..needless to say.. I am PARANOID about the rest of my iris!

From these pics (click to see full size), does this look like the work of the borer or some type of leaf spot? I'm thinking some type of leaf spot.. How would you treat this? I just dug them and soaked them in a bleach solution.

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Question # 2...in the bed where I found the borers, how would you treat the soil to kill any existing larvae?

THANKS!!