Curly Top, Powdery Mildew Seen in Tomatoes

Sabrina General, Specialty Crops, Tree, nut & vine crops

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It’s time for the tomato harvest in some parts of the state, but a couple of problems are popping up. Sabrina Hill has more.
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As the tomato harvest is underway in Merced and Fresno Counties, both are reporting findings of curly top virus. Curly top virus usual kills young plants. Older plants that become infected can survive, but will have yellowing and stunted growth. Other signs of an older infected plant include leaves that are thick, with edges that roll upwards. The virus is spread by the beet leafhopper. Spring plantings are the most susceptible to the pest.

Some tomato growers in Merced County are also reporting problems with powdery mildew. Powdery mildew can cause leaves to die, which can then lead to sunburned fruit and weakening of the plant.