These canker diseases can cause significant damage to trees when they kill all the bark in a particular section, which in turn girdles a branch or main stem. This girdling results in the death of ...

If pruning when dormant, you can prune closer to the canker margin, again cutting just above a node. Make sure to sterilize pruners between cuts.

The decay is caused by a fungus that attacks the tree's bark, with apple and pear trees being the most common hosts. If not addressed, canker can kill a tree in a single season and spread to others.

The EPA registers new bacteriophage products AgriPhage-Fire Blight and AgriPhage-Citrus Canker to control disease in apple, pear and citrus crops.

Alan Buckingham, author of Allotment Month By Month, suggests in his book's January section gardeners should check apple and pear trees for signs of canker and remove any infected wood if found.

Warning to anyone with apple or pear trees in garden to check them for fatal disease If left unchecked, canker can kill off a tree in a single season and spread to others, too.

Alan Buckingham, author of Allotment Month By Month, says in the January section of his book that gardeners should check apple and pear trees in January for signs of canker and cut out any ...