By Grandpajack
South Yorkshire,
United Kingdom 
Greetings, My respberry canes ,Autumn Bliss, are three years old, they are very healthy exept for the odd cane or two showing a yellowing of the leaves very simillar to epson salts requirement on tomatoes.what do you think?
9 Jul, 2011
Answers
Not serious yet, but it looks like a combination of iron and manganese deficiency, probably caused by too much lime. Adding compost should cure this, though those leaves will never green up. If it's stubborn, you may need to add Sequestrene.
10 Jul, 2011
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They look fine to me I wouldn't be dosing them with anything.
9 Jul, 2011