rotten top of tomatoes, fruit is infected with fungal disease

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