Citrus > Citrus General Discussion
sign of citrus greening
jtnguyen333:
Location is san diego out of the quarantine area. However, I'm seeing signs on my trees that I think could be citrus greening (huang long bin). These trees were healthy as recent as 2 months ago with full of little fruits. I fed them with micronutrients in late February so I think it is not a micronutrients deficiency. But I left town for 9 days 6 weeks ago and when I came back it deteriorated. Below are some pictures. I have contacted CDFA and they will have someone calli me next week to check. I'm dreading this. Two of the trees in the photos are sumo and one is a multigrafted. Do they look like citrus greening?
sc4001992:
I have only seen the CCPP website photos and your leaves looks more like a bad case of mold and fungus. I read the HLB infected trees takes a few years before it starts showing the yellow/veins in the leaves and the fruits start to look bad. But your yellow leaf color doesn't look normal. Something is wrong with your tree.
I guess you will know for sure when they come and test your plants. If they are HLB/citrus greening then your area will be in a quarantine zone now.
jtnguyen333:
How would you deal with such mold and fungus?
--- Quote from: sc4001992 on June 03, 2022, 12:25:08 PM ---I have only seen the CCPP website photos and your leaves looks more like a bad case of mold and fungus. I read the HLB infected trees takes a few years before it starts showing the yellow/veins in the leaves and the fruits start to look bad. But your yellow leaf color doesn't look normal. Something is wrong with your tree.
I guess you will know for sure when they come and test your plants. If they are HLB/citrus greening then your area will be in a quarantine zone now.
--- End quote ---
Millet:
No not citrus greening. Many of the leaves are just showing that they are old. A citrus leaf has a life span of 18 months. How often do you fertilize your tree, and how old is the tree/
jtnguyen333:
The two sumo are 2.5 years and the multi-grafted one is 4 years old. I topped the multigrafted last year and graft a few different varieties onto it. I fertilize about every 2 months.
--- Quote from: Millet on June 03, 2022, 01:07:10 PM ---No not citrus greening. Many of the leaves are just showing that they are old. A citrus leaf has a life span of 18 months. How often do you fertilize your tree, and how old is the tree/
--- End quote ---
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