sentences:  There are no insect vectors, so applying insecticides have no effect on a plant's resistance to this disease.Cultural practices for preventing this disease include planting tomatoes in a row north to south, monitoring plants heavily April through June, and using a drip irrigation system to keep as much plant tissue dry and free of favorable environments for this pathogen.Teleomorph of "Alternaria alternata" is "Clathrospora diplospora".