yellow, white spots on tomato fruit are sign of bacterial cancer of plant

alternaria anthracnose anthrax bacteria bacterial bacterium blight bugs cancer canker clavibacter colletotrichum crop curl dangerous deficit disease dots foliage fruit fungus fusarium garden infection infestans insects mildew moisture mold mycelia nitrogen penicillium pests phytophthora plant potassium problem rot septoria sick sickness sign solani spot spots stain tomato tomatoes unhealthy vegetable vertex verticillium viral virus white wilt yellow