By Divacat
United Kingdom 
Please can you tell me if apple scab/canker is infectious to other apple trees ie can it be caught by them
27 Jul, 2015
By Divacat
United Kingdom
Please can you tell me if apple scab/canker is infectious to other apple trees ie can it be caught by them
27 Jul, 2015
Yes, Scab is a fungus, the spores can travel from one tree to another. Also, if the conditions are right for that kind of infection, then other trees are also going to get it in any case.
Try spraying with Copper sulphate.
Canker can go from tree to tree too.
27 Jul, 2015