blackberry fastbuds

J42, I think Im at 42 for this 1. cuz I started her beginning of june according to my pics..sorry for the mistake. So she is budding well but I try to get my issues resolved. There is a lot of rusty spot on the leaves, I though at first for calcium and phosphorus deficiency, but it is from salt build up... I still dont know if Botanicare is good for me I follow the chart and it always seems to build-up ppm into the soil.. I always forget to drop the ppm.. Now I flush this week and start over and hope ill get some good buds from it anyway