That looks like it is a nutrient deficiency. It maybe cold related. Give it a good feeding of palm fertilizer and water it in good. Young coconut palms are very sensitive to cold/cool weather. If it gets below around 50 degrees the roots shut down. So often later in spring/summer a leaf or 2 comes out distorted as it did not recieve adequate nutirents when the leaf was developing. It should grow out of it.

It looks fine to me. That kind of damage to the fronds happens a lot when palms go inside because its drier indoors and darker too. How long has it been inside? Once you take it outside, it will grow normally again, and it should remain healthy indoors once it gets used to its surroundings. Good luck! -Alex

epidemiolo, Thanks for the link. You're right on with with the white fly infestation. In fact, my Sugar Apple has been badly infected with the same infestation also. Since I'm keeping my edible plants organic, I only spray with Neem oil and just hope for the best. You do have a nice collection of mangoes there. I also have a Carrie which is quite a hardy plant. I had to dig it out from the ground to make room for some garden renovation and it's in a huge pot now. The ones that are in the ground are Miracle mango, Pickering and Cogshell. The rest of them which are Nam Doc Mai, Coconut Cream and Carrie are all in the pot. I hope all your planted mangoes will do well in your planting zone. Do you have to protect them when it gets cold? So, how are you treating your mango that has Anthracnose? As to your original question on how to revive your mango, have you considered tipping it? Where I am in zone 9b, I wouldn't consider doing it now as the weather is getting colder and their growth rate has slowed down. But, if you're in a warmer planting zone, maybe it's ok to do so. I have done a lot of tipping to all my mangoes and they always send out lots of new flushes after that. Here's a picture of my Cogshell.

Coconut oil ...hhhuuummmm, I have never heard of that. I am a firm believer in "why take a drug if a food can do the same thing". My Akita has allergies too, she used to dig blody holes in her face and chew raw patches on her tummy and under her legs. She cant tolerate steroids at all they make her crazy and anxious. I started her on my Mangosteen juice mainly for her joint pain but it seems to have really helped her allergies too (it sure helped mine). She is still itching a lot but no where near as badly. I will look into the Coconut oil and see if that helps her even more. Thanks for the tip! Lisa