Fungal rust disease infiltrates these spinach leaves.
You Can Prevent Rust Plant Disease!
How to Identify Rust Damage
Rust diseases come in different varieties and can affect a wide range of plants. People often struggle with rust on their roses. It is easy to remember the defining characteristics of this fungus as they match its name. Rust plant disease will look similar to the rust that appears on that old bicycle in the shed.
- Look for yellow or white spots forming on the upper leaves of a plant.
- Look for reddish to orange blister-like swellings called pustules on the undersides of leaves.
- Orange or yellow spots or streaks appear on the undersides of the leaves.
- Within these spots that form are spores.
- Usually, leaf distortion and defoliation occur.
Photo Credit: Bruce Watt, University of Maine.
Catherine Boeckmann
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How to clear the flower leaf RUST FUNGI...
Should the soil be replaced in the planters that had rust?
Lou-
Yes, we recommend replacing the soil to prevent to spread of the spores.
We have had very wet weather lately in Maryland and my pepper plants have rust spots. The first flowers are just beginning to appear. I have removed all leaves that show signs of rust - the younger leaves seem fine at the moment.. There are some black marks on the stem at the joints. Some nearby tomato plants have some leaf distortion but no rust spots. Should I remove the pepper plants, spray with a fungicide or wait and see what happens?
Pls see our advice above: there is no easy solution. Are your plants well spaced apart? A small matter at this stage, perhaps. But as for the fungicide…maybe try dusting with sulfur instead (as noted above). 鈥淲ait and see鈥 may be a disappointment. You might feel better about trying something. Again, see above. Hope it works!
My white hydrangea blooms have turned brown. Leaves are healthy, when new bloom
appears, the white turns brown and die. I have about eight brown blooms now.
Hi, newly planted Hydranger was doing well for a couple of weeks but has now suddenly wilted with black marks on all the stems at the bend points. It doesn't look under watered, is it possible to overwater a hydrangea??
Thank you!
Black marks on your hydrangea sound like a fungal infection. It's been wet or humid or you're getting water on the plant's leaves. First, get rid of any fallen leaves. Then make sure your plant has good airflow and isn't crowded. Only water at the soil level when the soil is dry 3 to 4 inches down (poke your finger in the soil to check). When it's dry, water deeply enough that you end up watering about twice a week. Also, make sure the soil drains well and the plant's "legs" aren't wet. If this continues, you may need a fungicide spray.
my Canna Lily leaves, turned beige after one month in my pots. Just cut off the leaves I'm told.
I have several hydrangeas that were planted by the previous home owners. I live in NC. In late August when moved in, all the blooms were dead and dried and most of the leaves had rust spots. It is now November and the plants are developing nice green new growth at the end of the branches. However, almost all of the old leaves have many rust spots and are pale green. I would love to prune the plants way back to remove all the rust and start new healthy growth. Can I do this? When? How short? Will they bloom next year? Is there anything I should do to kill and avoid further rust? Thank you so much for your advice.
