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Excessive moisture and rainy or humid weather can lead to this problem known as leaf spot. Always remove old dead leaves, and cut off and destroy any leaf or part of a leaf that is affected. In the spring, about six weeks before bloom, begin a regular spraying program with a fungicide.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoAfter the iris blooms, the green part of the plant gradually dies back. However, it is not dead. It will regrow the leaves next spring and bloom again.
Wiki User
∙ 8y agoIf the leaves are brown, it may be because the iris rhyzome has been eaten by iris borer moth larvae.
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What are the brown spots on the leaves of a Japanese maple?
They are either bacteria or bugs.
What kind of leafs are green with dark brown spots?
red maple leaves
Which is an example of qualitative data?
Plant leaves were brown on the edges and had yellow spots on them
What might cause brown spots in fig leaves?
Over-watering may cause the edges to be brown. If there are spots on the leaves, either a chemical or insects may be causing the problem. Wash the plant's leaves (top and bottom) with a mild soap solution and rinse.
What are the signs of frost nip?
Brown spots on the edges of leaves are signs of frost damage.
Why does your Aloe vera plant have brown spots?
Aloe vera leaves develop brown spots during winter due to effect of frost
What are the brown spots on bing cherry tree leaves I have not seen any bugs only tiny brown spots on the leaves. Its a newly planted tree just bought from the nursery.?
could be lots of things. can you be more specific? where are the spots, how big, what time of year, wet or dry? can you see any bugs on the tree? ect...
Does iris have sword shaped leaves?
Yes the leaves of iris look like green sword blades.
Is a iris herbaceous or deciduous?
An iris is herbaceous. It does not lose its leaves.
Why your iris look brown?
Your iris might look brown because this is the color of the pigmentation of that part of the eye. Brown is the most common color of the human iris and can be light brown to almost black.
Why do iris leaves get brown spots and what can be done about it?
Excessive moisture and rainy or humid weather can lead to this problem known as leaf spot. Always remove old dead leaves, and cut off and destroy any leaf or part of a leaf that is affected. In the spring, about six weeks before bloom, begin a regular spraying program with a fungicide.
When do you cut back iris plants in Texas?
Iris leaves should be trimmed back when they have brown tips. Cutting the flowering stalk to the rhizome will also discourage rot. The leaves usually don't need to be trimmed because they will carry on photosynthesis for next year's growth.
