What's wrong with my mango tree?

[idontknowhatnametuse]

Since spring started, my mango tree started growing again but the leaves are different and they grow smaller, the tree is grown from seed by me and it's a small plant, Is it the ants? I've seen them go to that part where the new leaves are (the top) and they stay in there. Most of the new leaves end dying and the ones that don't die are light green and they look neglected.

[Tracy]

20 hours ago, idontknowhatnametuse said:

Since spring started, my mango tree started growing again but the leaves are different and they grow smaller, the tree is grown from seed by me and it's a small plant, Is it the ants? I've seen them go to that part where the new leaves are (the top) and they stay in there. Most of the new leaves end dying and the ones that don't die are light green and they look neglected.

Ants aren't normally in and of themselves the problem but they do often work in collaboration with other insects that can be problematic to new growth, primarily aphids.  While there doesn't appear to be anything visible in the photo you provided, you should examine more closely for them as a starter.  Where are you located that you are growing a mango tree that goes deciduous?  Is the plant in the ground or in a pot?

[idontknowhatnametuse]

My tree is in a pot, I repotted it some months ago It seems to like my climate. When winter comes it's indoors and growing fine. It hasn't gotten any damage from winter. I'm also wondering if it's the heat because we got 41C° for 3 days in a row and it was in full sun. I'm located in Monterrey, Mexico.

Here's a photo of the tree, Or should I say trees because it's a double. When I sprouted the seed it was a single sprout but 4 days later another sprout appeared in the same seed. The smaller tree is the older one and it seems to be growing fine compared to the taller one which is the younger one.

[Tracy]

5 minutes ago, idontknowhatnametuse said:

My tree is in a pot, I repotted it some months ago It seems to like my climate. When winter comes it's indoors and growing fine. It hasn't gotten any damage from winter. I'm also wondering if it's the heat because we got 41C° for 3 days in a row and it was in full sun. I'm located in Monterrey, Mexico.

Here's a photo of the tree, Or should I say trees because it's a double. When I sprouted the seed it was a single sprout but 4 days later another sprout appeared in the same seed. The smaller tree is the older one and it seems to be growing fine compared to the taller one which is the younger one.

If given enough water, I would imagine that 41 C wouldn't be a problem for at least some types of Mango.  They grow some here in the Coachella Valley which is desert (south of Palm Springs/Palm Desert, California).  I suspect you could grow this fine in the ground unless you get extremely cold there in winter.  Perhaps you know others growing Mango trees in Monterey?  Any signs of aphids or other insects that could be causing your emergent leaf problem?

[Xerarch]

It looks good overall to me, I have a couple small mangoes, one about the size of yours and another a little bigger that I grew from seed.  I have noticed that I see ants on the new growth frequently, they don't seem to be doing anything negative.  One time I found some eggs or something of another insect on there and I washed those off.  One of mine currently has grown huge leaves on one branch while another branch has small leaves while yet another branch has in-between leaves, all same tree.  Maybe yours is experiencing a little shock after moving it outside, I'd just keep it adequately watered, keep it outside in the sun, and let it do its' thing.

Let's see, I think Monterrey is pretty warm, zone 10 on the map anyway.  I would think you would be able to put that in the ground with the possibility of having to protect it on bad years

[idontknowhatnametuse]

12 minutes ago, Xerarch said:

It looks good overall to me, I have a couple small mangoes, one about the size of yours and another a little bigger that I grew from seed.  I have noticed that I see ants on the new growth frequently, they don't seem to be doing anything negative.  One time I found some eggs or something of another insect on there and I washed those off.  One of mine currently has grown huge leaves on one branch while another branch has small leaves while yet another branch has in-between leaves, all same tree.  Maybe yours is experiencing a little shock after moving it outside, I'd just keep it adequately watered, keep it outside in the sun, and let it do its' thing.

Let's see, I think Monterrey is pretty warm, zone 10 on the map anyway.  I would think you would be able to put that in the ground with the possibility of having to protect it on bad years

Thanks! They actually fair well here. I have seen huge mango trees in the past and they always recover after winter. But most of the time they don't even get damage.

[idontknowhatnametuse]

Update; It was indeed the sunlight, I moved it to a place where there is shade most part of the day and it only gets 40-50 minutes of sun in the afternoon. It's now recovering.