Jump to content
  • WELCOME GUEST

    It looks as if you are viewing PalmTalk as an unregistered Guest.

    Please consider registering so as to take better advantage of our vast knowledge base and friendly community.  By registering you will gain access to many features - among them are our powerful Search feature, the ability to Private Message other Users, and be able to post and/or answer questions from all over the world. It is completely free, no “catches,” and you will have complete control over how you wish to use this site.

    PalmTalk is sponsored by the International Palm Society. - an organization dedicated to learning everything about and enjoying palm trees (and their companion plants) while conserving endangered palm species and habitat worldwide. Please take the time to know us all better and register.

    guest Renda04.jpg

What could this be?


idontknowhatnametuse

Recommended Posts

My Acrocomia aculeata is growing pretty fast but yesterday I started noticing that some older frond leaflets started turning brown. My palm currently has 7 fronds and the 4 oldest ones are showing this problem. Leaflets that show this are drying up fast. It starts with yellowing and ends turning brown.

Oldest frond

20240705_122759.thumb.jpg.006956f05aa8c564039c3877522060aa.jpg

2nd oldest frond

20240705_122825.thumb.jpg.4c63e84072fdb50e936c55004ef7c7db.jpg

3rd oldest frond

20240705_122900.thumb.jpg.970963af65218660d8678a9f3babdaa2.jpg

4th oldest frond

20240705_122913.thumb.jpg.84c031ef90f72ec56cb972fab7cdab87.jpg

We've been getting a lot of rain lately, could it be getting too much water/sun or is this normal?

Link to comment
Share on other sites

I also noticed it has some spiders living in it because it always has spider webs, maybe the problem is the spiders that could be spider mites?

Link to comment
Share on other sites

Also note: This is happening to leaflets randomly, not in a row. Some leaflets got this problem while others remain completely green. 3 (Almost 4) newest leaves are fine, no yellowing on them. 

Tips are also folding like this

20240705_160116.thumb.jpg.831d628ae73797d2711aedf2ea5e7228.jpg

20240705_160456.thumb.jpg.d75dc83ef6bc0c84bc09eec1477eaf79.jpg

20240705_160542.thumb.jpg.4b8611d5f3311b74701041cd992bdbbf.jpg

20240705_160602.thumb.jpg.f32568700e0edd9c382ab7dfb8e9af59.jpg

Link to comment
Share on other sites

Bump (Anyone?)

Link to comment
Share on other sites

I have had leaf fold like that when insects decide to take up residence . As far as browning or yellowing , no idea. The rest of the palm looks ok from what I can see. Harry

  • Like 1
Link to comment
Share on other sites

1 hour ago, Harry’s Palms said:

I have had leaf fold like that when insects decide to take up residence . As far as browning or yellowing , no idea. The rest of the palm looks ok from what I can see. Harry

Thanks, the palm itself is growing normally (very fast), these 4 old leaves also got exposed to -2C last winter so maybe they're also weakened by that.

Link to comment
Share on other sites

That could very well be. Winter does a bit of damage to some of the more sensitive palms and it could take a complete season to correct . I have seen a discoloration on a few of my Pritchardia frond tips after a cold spell and spotting on my Cocothrinax. If your palm is growing at a normal pace and the new growth improves , I think it is fine. I am not familiar with this palm so I don’t know what is expected . We have had higher than normal temps so I am keeping a close eye on my palms . Harry

  • Upvote 2
Link to comment
Share on other sites

3 hours ago, Harry’s Palms said:

That could very well be. Winter does a bit of damage to some of the more sensitive palms and it could take a complete season to correct . I have seen a discoloration on a few of my Pritchardia frond tips after a cold spell and spotting on my Cocothrinax. If your palm is growing at a normal pace and the new growth improves , I think it is fine. I am not familiar with this palm so I don’t know what is expected . We have had higher than normal temps so I am keeping a close eye on my palms . Harry

The yellowing/browning keeps spreading, could this be lethal bronzing? I don't really know all the characteristics of this disease, only that it starts from the older foliage but I'm scared it could be it.

Link to comment
Share on other sites

I don't know if Acrocomia is suspectable to lethal bronzing or fusarium wilt - I haven't seen it listed in any publications.  Hopefully that's not the issue with yours!  If it has been raining a lot lately I believe that would eliminate the possibility of spider mites since they thrive in dry conditions.  I grew aculeata in San Antonio and I don't remember seeing cold damage like that and I believe we saw temperatures below -2C while I had it.  Unfortunately it was killed outright by the ox beetle.  :(  Sorry I don't know what else to share on the subject.

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Fusarium-Wilt-Quarantine-Of-Palms

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Date-Palm-Lethal-Decline/Texas-Phoenix-Palm-Decline-Information

Jon Sunder

Link to comment
Share on other sites

17 minutes ago, Fusca said:

I don't know if Acrocomia is suspectable to lethal bronzing or fusarium wilt - I haven't seen it listed in any publications.  Hopefully that's not the issue with yours!  If it has been raining a lot lately I believe that would eliminate the possibility of spider mites since they thrive in dry conditions.  I grew aculeata in San Antonio and I don't remember seeing cold damage like that and I believe we saw temperatures below -2C while I had it.  Unfortunately it was killed outright by the ox beetle.  :(  Sorry I don't know what else to share on the subject.

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Fusarium-Wilt-Quarantine-Of-Palms

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Date-Palm-Lethal-Decline/Texas-Phoenix-Palm-Decline-Information

 

Yesterday I saw a lot of these insects in the base of my palm as well, I don't know if they do any damage to palms, I saw some snails in there too.

Tijereta Hembra | Orden: DERMAPTERA Nombre vulgar: tijerilla… | Flickr

Link to comment
Share on other sites

27 minutes ago, Fusca said:

I don't know if Acrocomia is suspectable to lethal bronzing or fusarium wilt - I haven't seen it listed in any publications.  Hopefully that's not the issue with yours!  If it has been raining a lot lately I believe that would eliminate the possibility of spider mites since they thrive in dry conditions.  I grew aculeata in San Antonio and I don't remember seeing cold damage like that and I believe we saw temperatures below -2C while I had it.  Unfortunately it was killed outright by the ox beetle.  :(  Sorry I don't know what else to share on the subject.

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Fusarium-Wilt-Quarantine-Of-Palms

https://texasagriculture.gov/Regulatory-Programs/Plant-Quality/Pest-and-Disease-Alerts/Date-Palm-Lethal-Decline/Texas-Phoenix-Palm-Decline-Information

 

And yes, Acrocomia is in the susceptible list.

https://edis.ifas.ufl.edu/publication/pp163

image.thumb.png.400e8ab1f8f4db97bcb5ed6542d84fd5.png

Link to comment
Share on other sites

5 minutes ago, idontknowhatnametuse said:

Yesterday I saw a lot of these insects in the base of my palm as well, I don't know if they do any damage to palms, I saw some snails in there too.

Tijereta Hembra | Orden: DERMAPTERA Nombre vulgar: tijerilla… | Flickr

These are earwigs (Dermaptera) and they don't appear to cause any damage to palms although they may congregate in some species.

Which list is that you have, lethal bronzing?  I hate to hear that Acrocomia is on there.  I'm growing an A. totai seedling in a pot and you aren't kidding - they're fast indeed!  :) I may end up planting it out by the fall if it keeps going at this rate.  I don't recall A. crispa growing nearly this speed as a seedling.

Jon Sunder

Link to comment
Share on other sites

2 minutes ago, Fusca said:

These are earwigs (Dermaptera) and they don't appear to cause any damage to palms although they may congregate in some species.

Which list is that you have, lethal bronzing?  I hate to hear that Acrocomia is on there.  I'm growing an A. totai seedling in a pot and you aren't kidding - they're fast indeed!  :) I may end up planting it out by the fall if it keeps going at this rate.  I don't recall A. crispa growing nearly this speed as a seedling.

If this one dies (I hope not because it has been growing really well) I can replace it easily, I also have another Acrocomia in my house sidewalk (Not affected) that is a bit slower and smaller.

Link to comment
Share on other sites

6 minutes ago, Fusca said:

These are earwigs (Dermaptera) and they don't appear to cause any damage to palms although they may congregate in some species.

Which list is that you have, lethal bronzing?  I hate to hear that Acrocomia is on there.  I'm growing an A. totai seedling in a pot and you aren't kidding - they're fast indeed!  :) I may end up planting it out by the fall if it keeps going at this rate.  I don't recall A. crispa growing nearly this speed as a seedling.

What makes me hope this is not lethal bronzing is that there are no other affected palms in the area, even Phoenix sylvestris which is the most affected species by this in the US thrives here and doesn't get that.

Link to comment
Share on other sites

@Fusca After checking in the internet, I think my palm actually has potassium deficiency, maybe that's also why some leaflets of its newer fronds don't separate correctly as well. I will fertilize it and keep updating on it anyways.

  • Upvote 1
Link to comment
Share on other sites

20 minutes ago, idontknowhatnametuse said:

@Fusca After checking in the internet, I think my palm actually has potassium deficiency, maybe that's also why some leaflets of its newer fronds don't separate correctly as well. I will fertilize it and keep updating on it anyways.

Hopefully that's what it is - something fixable!  I don't have a backup.  If something happens to mine I'll have to wait on another seed to germinate!

  • Upvote 1

Jon Sunder

Link to comment
Share on other sites

On 7/5/2024 at 11:40 AM, idontknowhatnametuse said:

My Acrocomia aculeata is growing pretty fast but yesterday I started noticing that some older frond leaflets started turning brown. My palm currently has 7 fronds and the 4 oldest ones are showing this problem. Leaflets that show this are drying up fast. It starts with yellowing and ends turning brown.

We've been getting a lot of rain lately, could it be getting too much water/sun or is this normal?

Alex, can you tell a little more info about the palm in question? 

-how big is it (looks to be fairly small)

-how long ago was it planted? What soil medium is used? 

-when purchased, was it pulled from a greenhouse?

-what’s the sun exposure?

-irrigation schedule?

To me….it looks like it’s simply acclimating to its current conditions.  “Damage” to older leafs isn’t nearly as big of a concern than to new foliage. 

-dale 

 

  • Like 1
  • Upvote 2
Link to comment
Share on other sites

1 hour ago, Billeb said:

Alex, can you tell a little more info about the palm in question? 

-how big is it (looks to be fairly small)

-how long ago was it planted? What soil medium is used? 

-when purchased, was it pulled from a greenhouse?

-what’s the sun exposure?

-irrigation schedule?

To me….it looks like it’s simply acclimating to its current conditions.  “Damage” to older leafs isn’t nearly as big of a concern than to new foliage. 

-dale 

 

-how big is it (looks to be fairly small)

It's about 1 and a half meter tall with its newest fronds, but is in juvenile phase.

-how long ago was it planted? What soil medium is used? 

Spring of 2023 when it was still a small seedling, I planted it in black dirt, peat moss and coco coir.

-when purchased, was it pulled from a greenhouse?

It was germinated by a grower in the state of Tabasco, it was brought to me in a package.

-what’s the sun exposure?

Full sun from 8:30 AM to 1:00PM, partial sun from 1:00 PM to around 6:30 PM

-irrigation schedule?

Depends on how hot the day is, if we get to 39C for a week (for example) I water it every 2 days but normally I water it every 3/4 days.

Link to comment
Share on other sites

Honestly…I think it’ll be fine. The plant is small and being put to the test in a harsh environment. Im not too familiar with that species or your Zone for that matter but a small, newly planted tree being exposed to potentially 39° heat with little shade repreive…..I think it’s asking a lot.
 

I would merely keep doing what you are doing and not get too worried about how the older leafs look. Mark the spear and keep an eye on growth. The tree has to go thru multiple seasons and continue to push new growth to be considered acclimated. 
 

Interested what others think. Possibly with more knowledge of the species. Good luck. 
 

-dale 

  • Like 1
Link to comment
Share on other sites

2 hours ago, Billeb said:

Honestly…I think it’ll be fine. The plant is small and being put to the test in a harsh environment. Im not too familiar with that species or your Zone for that matter but a small, newly planted tree being exposed to potentially 39° heat with little shade repreive…..I think it’s asking a lot.
 

I would merely keep doing what you are doing and not get too worried about how the older leafs look. Mark the spear and keep an eye on growth. The tree has to go thru multiple seasons and continue to push new growth to be considered acclimated. 
 

Interested what others think. Possibly with more knowledge of the species. Good luck. 
 

-dale 

Thanks, the spear is growing very fast.

Link to comment
Share on other sites

Don’t know about the coloring. Some spider bend the tip of leafs with their web. 
Just a reminder that these grow fast and I think it’s too close to the wall. 

Link to comment
Share on other sites

  • 2 weeks later...

15 days later;

Most of the consistently spreading yellowing/browning in leaflets has stopped and dried out.

I'm not sure if this is a phytoplasma disease or a deficiency like potassium but the palm itself seems to be resisting it. The palm comes from Tabasco where both LY and LB are present since unknown times. 

Oldest frond stopped yellowing/browning, seems to be dying of being old or has a deficiency in one tip of the frond.

20240720_132730.thumb.jpg.87b2f30d5430c4c46fed9651e93e78c6.jpg

20240720_133202.thumb.jpg.0805026e0cabd72603e898de61a63396.jpg

2nd oldest leaf still has some advancing yellowing but very slowly and drying out.

20240720_132843.thumb.jpg.5bb67350884e0cfd20cd3b5356ba70d7.jpg

3rd oldest leaf; the yellowing in most leaflets has stopped advancing and dried out. It does have some yellow spots could be potassium deficiency.

20240720_132800.thumb.jpg.d42804b64ee408cc8f24ca84f6defeca.jpg

20240720_132929.thumb.jpg.7bcfdce74edf379e2fb901be7dd5b7ff.jpg

20240720_133321.thumb.jpg.adbd363bc62ca47ac01a2352fee0373a.jpg

4th oldest frond doesn't have much yellowing and most of it is already dried out. It does have this in the tip but it's not advancing.

20240720_133102.thumb.jpg.67e1cd0138205ea2ecd6ab876147794d.jpg

spear and newest fronds are okay, no problem with these.

20240720_132940.thumb.jpg.420524cc0bc1ca050a3008933876324a.jpg

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...