tomato blight on maincrop foliage. fungal problem phytophthora disease which causes spotting on late tomato leaves

leaves yellow brown disease leaf blight garden foliage fungal phytophthora infestans gardening natural nature tomatoes plant tomato vegetable problems background bacterial crop curl destroy fall green ground harvest much problem rain spots spring summer sun temperature wilt sickness infection mildew fungus parasite bacterium virus growth bacteria late