Orange Tree Dying

Question

I woke up to find my orange tree dying after a great yield from last year and perfect bloom this season I checked a round to for holes or any rodent’s signs find none no lack of water either Nor any affection to the surrounding trees I will appreciate any suggestions and recommendations to save it And protect the others Thanks

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Answer 1

It could be dothiorella gummosis, which requires cutting out affected limbs. Are those swollen spots on the limbs or are they shadows? It may be a canker issue. These articles should help:

https://ipm.ucanr.edu/agriculture/citrus/dothiorella-gummosis/#gsc.tab=0

https://ipm.ucanr.edu/PMG/C107/m107bpleaftwigdis.html

https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1492.pdf