September 13, 2006

Aster Yellows

Aster yellows is a fairly common disease that can cause bizarre symptoms on a wide variety of plants. The disease can be found on hundreds of plants, including many flowers and vegetables, such as coneflower, daisy, marigold, zinnia, snapdragon, chrysanthemum, tomato, carrot and lettuce.

Plant Disease Clinic Update - September 13, 2006

Samples with the following problems have been seen in the Plant Disease Clinic recently:

Anthracnose on oak

Apple scab on crabapple

Aster yellows on coneflower