Re: CULT: leaf spot
- Subject: Re: [iris-talk] CULT: leaf spot
- From: "John Reeds" l*@msn.com
- Date: Sun, 13 Oct 2002 14:06:55 -0700
Sounds like the ubiquitous fungal leaf spot to me. Just about any anti-fungal spray will control the problem. Carefully trim off ALL infected spots (not just the "bad" areas), and spray thoroughly. Repeat 3-4 times at 4-7 day intervals. I like Green Light "Fung-Away". Overhead watering will exacerbate the problem; rainy and foggy weather could do the same.
John Reeds, in 9b southern California
lamegardener@msn.com
----- Original Message -----
From: bwardwelliii
Sent: Saturday, October 12, 2002 9:01 AM
To: iris-talk@yahoogroups.com
Subject: [iris-talk] CULT: leaf spot
I am growing many varieties of TB's which I transplanted from my previous home, along with other irises such as LA's, SIB's and others. Toward the end of this past spring, I noticed the upper portion of the older leaves on the TB's had spots on them. They were round(many of them on some plants) with cream colored centers. I have several separate gardens all of which have TB's, but only one garden had the problem. Thinking it might be a deficiency in the soil, I fertilized with a "super-formula" from this group. The plants grew well, but the tips of the oldest leaves have become dry and withered. On some plants, the leaves have died off altogether and the plants look weaker. I believe I again made a wrong assumption that the drought had effected the plants, not a disease. The fall rains have returned and some plants look better, but many do not. Today I noticed another separate bed about 50 feet away looks like it is in the early stages of the same problem.
Does anyone recognize this problem, and is there a solution, short of destroying the effected plants? Thanks in advance.
Bill Wardwell
USDA Zone 7
Wakefield RI
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