Hi! I'm a newbie and have a question about iris borers. My apologies if this has been addressed in a previous string!
What is the best way to treat them if they are just emerging? The are pretty small at this point, about 1/8". I've started cutting away all the mush and dipping the rhizomes in a 10% bleach solution. And I'm thinking it would be best to let them air out for a few days. But not sure how to treat the soil. (with Bayer Grub Control? Is it too late/early?) They're currently in containers. Lots and lots of containers!
I'm including a pic, in case it helps. (It's a little dark. Let me know if a better pic would help.)
Thank you so much!!
