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Brown leaves on rose bushes can be caused by fungal infections in humid areas. Fungal infections occur when the leaves stay damp and don't have enough sunlight to dry out. Roses should be kept pruned and watered under the plant at the soil line instead of overhead.


Rose bush leaves turn yellow for several reasons; mainly those to do with too much heat. Too much shade or excessive fertilizing are other reasons rose bush leaves turn yellow.


Rose bush leaves can turn yellow due to lack of water, spider mites or fungal diseases, such as blackspot and rust. Other symptoms are necessary to identify the exact cause of the yellowing.


Roses grow well in fertile soil that drains easily. They should be planted in areas that receive full sunlight, as they need at least 6 full hours of sunlight every day. Rose bushes must receive at least 1 inch of water every week during the growing season.


Plant a rose bush by choosing a good site for the plant, preparing the soil, keeping the bush moist, digging a large hole, and amending the soil with organic matter. You need gloves, a rose bush, compost or aged manure, a penny nail, a piece of gypsum and a shovel.


The general rule is to prune a rose bush just prior to the plant's breaking dormancy after the final frost of the season. In warmer climates this is as early as January, and in colder areas, it can be as late as April. There is an exception with old roses, which bear fl...


According to Rose Magazine, there are a variety of garden pests that eat roses, including aphids, cane borers, earwigs and pear slugs. Aphids feed on growing shoot sap, whereas cane borers feed on the rose canes. Earwigs and pear slugs feed on rose leaves.