Hi, i have an issue with my apple and kiwi vine both planted 4 years ago in heavy clay soil. they are around 3 metres apart from the nearest branch. we had a Labrador dog who used the space between them as his toilet.
the issue we have is many of the leaves have lost their colour and the leaves have turned yellow. both were fine in the spring but have had this issue during the summer. you can see the green veins on the leaves but the rest is yellow. i found small black bugs on the underside of the kiwi which i have sprayed.
runner beans are also growing in amongst the kiwi and they are fine. we also have a grape vine and victoria plum which are also fine. i fed both with bonemeal in the spring which hasn't been too wet (south west UK near Bristol)
does anyone have any ideas on what it could be?