Tomato Diseases to Watch For
Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK 74078 405.744.5527 Vol. 17, No. 19 http://entoplp.okstate.edu/pddl/pdidl 6/22/2018 Tomato Disease Update John Damicone, OSU Extension Plant Pathologist Department of Entomology and Plant Pathology Oklahoma State University See https://apps.dasnr.okstate.edu/SSL/entoplp.okstate.edu/pddl/2018/PA%2017-19.pdf Tomato diseases are rearing their ugly heads as fruit are set and some rainfall and a lot of humid weather has returned. After visiting some market farms last week and putting another string on plants in my garden, this is what I saw: Bacterial spot and speck These diseases are very similar in that they cause defoliation of plants from the bottom up and cause fruit spotting. They are difficult to separate in the field as their symptoms are very similar and may occur together. They are also difficult to separate from Septoria leaf spot, a fungal disease. Entomol...