Hi Hopinso, We have blackberries here in Wash State. Due to our wet and rainy fall weather the blackberries usually have a lot of mold when they are ripening. I guess it is a common infection. I usually get scratches on my arms and hands while picking blackberries and see dust from molded berries when I brush against them. I have been computer tested for pathogens and lab tested as well. I have this BB mold infection in my body and probably in organs and lungs. My lungs are clearing and getting stronger with the use of the Miracle-Mineral-Supplement . I believe the dry, rough and brownish spots on my arm is a manifistation of the blackberry mold. It is a guess but beings my arms are often scratched by BB thorns it makes sense to me. MW