In tomatoes and potatoes, the resulting disease is known as grey leaf spot.
In places where leaf spot occur, these crops can ultimately grow and still be resistant to the disease.
Three fungicide applications can achieve 60-80% control of leaf spot.
Use of fenbuconazole has been shown to be successful in controlling leaf spot.
If applied at harvest it will help prevent leaf spot from forming the next year.
Without control leaf spot is estimated to be able to reduce yields by up to 50%.
The latter two are also resistant to leaf spot.
Much of her research involved leaf spots and cankers caused by bacteria.
Bacterial leaf spot has caused significant crop losses over the years.
In the European Pear it is the cause of the disease known as late leaf spot.