I have a 10 year old Granny Smith Apple tree. About 4 years ago, the leaves would turn yellow and fall off. This has started earlier and earlier. This year, just as the tree greened up, the leaves are already turning yellow. I asked the arborists at the stated agriculture college and after a lot of correspondence, she speculated Apple Rust. Does anyone have any ideas?
John S said
I would add as many details as possible. Is the soil dry or wet? Do other plants get yellow leaves? Other apples? Sun? SHade?John S
PDX OR
The soil is moist but not wet. There is a red apple tree behind it. It still yields but does get yellow late in the season. Both trees are full sun. The leaves are already gettin yellow. All the leaves will drop olin the next three weeks. The tree will bud again a month later
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