Hi,
This is my first post, so I apologize if what I'm asking has been covered ad nauseum.
My father has 8-10 mango trees and 3-4 longan trees in his backyard.
Unfortunately, his health has declined and he's no longer able to care for them, so I'm seeing if I can help.
His trees vary from 2 meters tall to 8-10 meters tall.
They are 20-40 years old.
They have not been pruned for airflow.
Some have branches down at ground level.
None have ever been treated with any pesticide or fungicide before.
They have been fertilized.
In one or two previous years some of the mangoes produced a lot of fruit.
The longans have never produced significant fruit.
Neither has produced any fruit in the last few years.
The questions I would like to ask are:
1. If his mango trees have been diseased for some years (4 years plus), can they be rescued?
2. If so, will they withstand radical pruning, since every branch on the trees seems to be affected?
3. Any help identifying the diseases or problems based on the images and description below:
• Fruit appears, but then the tip of each branch turns black, and the fruit shrivel and die.
• Many leaves look unhealthy or diseased
• Trunk and branches of trees look covered in moss, mould, or fungus
4. Can longans catch diseases from mangoes? They seem to exhibit similar symptoms.
Fruit appear, then the fruit and branch tips shrivel up, dry, and die.
5. Can the longans survive radical pruning as well?
6. I have read that copper and other fungicides might help after pruning affected branches.
Any other advice is appreciated.
THANK YOU in advance for any help.
