My cypress tree has turned yellow. What is the problem? |
It is really difficult to diagnose a plant problem without seeing the plant or knowing the care and maintenance history. However, what you describe may be Cercospora Needle Blight. Here are the symptoms: -Needles and twigs turn yellow > brown > gray -Lower branches affected first -Disease spreads outward and upward -Needles drop from tree -Tips of infected branches remain green -Reddish-brown lesions form on 1 yr old twigs -Olive-brown tufts of spores on blighted tissue -Older infected trees have thin, brown foliage If this describes your cypress, control by pruning affected branches from trees; use a fungicide to prevent the rest of the cypress from developing the disease. Apply according to label directions. |