I have 10 cordon apple trees, most of which are at least 10 years old, thus well established. Few fruited this year but it seems that the ones with the most fruit are dying. A Rubinette has apparently died; all the leaves turned brown. The other one in trouble, a Bramley's Seedling,--at the other end of the rowo-- is loaded with apples but the leaves, especially nearest the fruit, are brown. It looks terrible. Has the same problem hit these 2, at opposite ends? It can't be lack of water since none of the others are affected. Any ideas?
Hopefully you do not have fireblight. Look for the shepherd's crook symptom at the tip of affected branches (see first link for example picture). The second link below (Government of British Columbia) discusses the disease in detail, and has good pictures of disease signs and symptoms. http://pubs.caes.uga.edu/caespubs/pubcd/C871.htm http://www.agf.gov.bc.ca/cropprot/tfipm/fireblyt.htm
I've attached a photo (I hope) of the sick Bramley's Seedling. Over to the left you can see its healthy neighbour (along with a "fake apple" to attract bugs). Marlene