Why do my roses have brown spots on their leaves?

Why do my roses have brown spots on their leaves?
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my knockout roses have leaves that are turning yellow with rust brown spots--but not at all like black spot

Description : my knockout roses have leaves that are turning yellow with rust brown spots--but not at all like black spot

Last Answer : Bayer has a good rose spray.

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Description : my double knockout roses are not blooming and have yellow leaves with black spots. what to do?

Last Answer : Take off the brown leaves and rake up the ones on the ground and bag & trash them. Bayer has a good rose spray at the store. Be sure to get under the leaves also. Or you can use 2 tablespoons ... 1 qt water and spray. Asphids & other insects don't like soapy water. Spray again after a rain.

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Last Answer : This is common as the plant throws its growth energy into the top and fruit production, but usually it is only the lower leaves or minimally sporadic within the plant as summer wears on . It can be ... , from the cool humidity. Hope there is some help for you somewhere in all this. Good luck.

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why did my pepper plants get spots on the leaves that turn brown and then the leave will wilt

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The new leaves on my maple tree have brown spots and are falling off. My yard looks like it is fall instead of Spring.

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my avocado tree has yellow leaves with brown spots

Description : my avocado tree has yellow leaves with brown spots

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my avacado has yellow leaves with brown spots on some of the tree first year to fruit

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Brown spots on Rhodoendron leaves?

Description : Brown spots on Rhodoendron leaves?

Last Answer : It could be a fungus.

My pansy geranium leaves have brown spots on them what is it?

Description : My pansy geranium leaves have brown spots on them what is it?

Last Answer : MY guess would be some sort of fungus infction on the leaves but I would have to see a picture of the plants and know exactly how you are tking care of them.

The lower foliage on my tomatoes is beginning to turn yellow and drop. The leaves have circular dark brown to black spots.

Description : The lower foliage on my tomatoes is beginning to turn yellow and drop. The leaves have circular dark brown to black spots.

Last Answer : A. This is Alternaria leaf spot or early blight, a common problem on tomatoes that causes defoliation usually during periods of high rainfall. Plant tomatoes on a raised bed to improve water drainage ... the growing season until harvest. Use a fungicide such as Daconil approved for home garden use.

Why dose my white roses turn Brown

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my Roma tomatoes as they ripen on the vine are forming brown spots at their base. What is causing that?

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Last Answer : Is the pot large enough. Does it have good drainage with a hole and some rocks in the bottom.....did you use the mix with the vitamins................you could wait until the sun ... made up container. Could be too much water and not good drainage. Tomatoes like full sun and good ventilation.