| A friend of mine has a navel orange that in recent years has died back and lost leaves. We've tried fertilizing and removing dead or weak branches, but no joy. Finally we pruned back heavily to remove all the possibly diseased portions, but the new leaves vary: some are light green and reasonably sized (up to 3'), some are light green and small (under 1.5') and some are twisted and yellow and small.
Soils here are clay and typically around 7.5 to 8.0 ph. Local expert says fertilize more, but that seems to give no help. And what is oddest is that these two very different shoots sprouted from the same branch only an inch apart with the healthier one in the midst of many yellow ones.
Any clue before we dig out the old orange? |
Here is a link that might be useful: picture of sick shoots
Whereabouts is this tree?
This could be the dreaded citrus greening disease:
Q. What are the symptoms of citrus greening?
A. The most characteristic foliage symptoms of citrus
greening are the blotchy mottling of leaves and leaf
yellowing that may appear on a single shoot or branch.
The disease may also cause small, narrow leaves and
short stems that give plant growth a bunched appearance. |
Here is a link that might be useful: Citrus greening info
