Copernicia diseases ID

[avanza]

Hello my copernica baileyana got sick.

How to solve this?

Thank you very much.

 

 

 

 

[Pedro 65]

Siriwat, can you pls post some pics of the new spears and the whole palm before I make my comment.

Thanks Pete

[Kris]

hi,

Do you have too much rains in your place...it looks more like fungus infection due to excess watering.

Did you fertz recently ?

Copernicia are quite sturdy palm its little baffling what happened to your palm.

Love,

Kris.

[avanza]

hello Pete.

i'm re upload pictures.

palm 1

 

[avanza]

palm 1

 

[avanza]

palm 2

 

 

[avanza]

palm 2

 

 

[avanza]

palm 3

[avanza]

hi Kris.

Thank you very much for your suggestions.

i fertz every 45 days since april.

and the rain, Three days a week.

[Kris]

Hi

Kindly do not use fertz for 6 months...you will soon see the difference.

Love,

Kris.

 

[Kris]

Here at our place we use fertz only twice a year. I.e just before the beginning of rainy season and again in early spring...thats all.

Here the soil medium is clayey.the one they use to make bricks and terracotta pots..

 

[Mandrew968]

Looks fine. Just let it be.

[avanza]

Thank you very much Kris & Andrew, i appreciate your help. 

[Pedro 65]

Siriwat, Palm 1 and  the 1 @ the back doesnt look the best,   the  other ( below) still look very  strong.. , ok or not, if they where mine I'd be giving them Magnesium, and Dolomite for starters and I have no idea what fert you use but if it contains "just" NPK  you need a fert with TE ( Trace elements).     

Maybe, your fert is fast acting and they are showing they dont like it ??

All best with them.     Pete

 

[avanza]

Pete i appreciate your help. thank for the tips about Magnesium, and Dolomite. i'm a newbie in this genus.

i use 15-15-15 this the best i can find here in the countryside province.

Thank you very much for your all help. 

Edited September 24, 2016 by avanza

[Keith N Tampa (ex SoJax)]

Avanza, are there oil palm plantations near you?  They have to fertilize those groves so you might be able to get some from the companies that sell fertilizer for oil palms.  I thought the light color flecks might be potassium deficiency.  But that can happen after heavy rains.  

[avanza]

Dear Keith,

i'm in the northest of thailand and the oil palm usualy pant in the south.

and thank you very much for the tips.

next time I'm order the oil palm fertz but i don't know what Formula do i need?

30-0-0
16-20-0
15-15-15
16-16-8
15-7-18
16-8-8
20-8-20
20-10-12
25-7-7
15-5-35
13-13-21
8-24-24
9-3-9
12-4-4

 

Thank you very much Keith.

[Mandrew968]

If you are new to the game, dont fertilize! Let the palms come into balance with your soil. Limestone rock is what Copernica love so just top dress with some so it leaches down. All you need for now.

[Keith N Tampa (ex SoJax)]

Avanza, the short answer is I would probably use 15-5-35. But I'm going to share more details below if you wish do read further. 

I have been selling fertilizer for a long time, 20 years+.  But almost all that fertilizer went on plants in pots and the "soil" really didn't have any nutrients so we fed the plants a ratio of 3 parts nitrogen, 1 part phosphate, and 2 parts potassium as well as micronutrients.  But when growin in soil, that's not usually the right choice.    In the last 5 years, I have done a little bit of work in agriculture and learned this:  unlike potting soil used in containers, actual soil has many nutrients.  So when we grow a crop of oil palms, for example.  We can analyze the nutrients removed from the site when the fruits are harvested, and replace them using a fertilizer program designed to replace just those lost in harvest.  We call it a nutrient balance sheet...remove 100kg of potassium per hectare with the oil palm Frits, replace the 100kg with fertilizer.  The balance sheet concept works pretty well but its not perfect.  let me use your Copernicia baileyana as an example.  One appears to have a potassium deficiency (orangey yellow flecks in the leaves). That might be because your soil doesn't have enough potassium...(that's my bet as I think your soils are somewhat acidic and and rather heavily leached due to your rainfall). Copernicias are native to areas with adequate potassium, as well as calcium and magnesium.  So if your soil doesn't have those nutrients in the same ratios, the Palm is probably having a difficult time finding adequate amounts.  The other thing that comes into play is rainfall.  Potassium can be leached out of the fronds during very wet weather.  So if your Palm can't find enough potassium, and it's losing quite a bit from the fronds due to leaching, you observe the fronds with the yellow-orange flecks.  I am wondering if the damage on the other Copernicia (brown splotches on the newer leaves) is further symptom that the nutrients available in your soil are just very different from where the palms are native.  Those new fronds might be showing Calcium deficiency, manganese deficiency, or something else, maybe even fungal disease.  So my advice is to use the high potassium 15-5-35, the add dolomite lime (which as both calcium and magnesium). And see if they improve.  

Overall they don't look bad.  It's a species that I would love to be able to grow myself, but it gets too cold here.  

[kirkhutch]

58 minutes ago, Keith in SoJax said:

Avanza, the short answer is I would probably use 15-5-35. But I'm going to share more details below if you wish do read further. 

I have been selling fertilizer for a long time, 20 years+.  But almost all that fertilizer went on plants in pots and the "soil" really didn't have any nutrients so we fed the plants a ratio of 3 parts nitrogen, 1 part phosphate, and 2 parts potassium as well as micronutrients.  But when growin in soil, that's not usually the right choice.    In the last 5 years, I have done a little bit of work in agriculture and learned this:  unlike potting soil used in containers, actual soil has many nutrients.  So when we grow a crop of oil palms, for example.  We can analyze the nutrients removed from the site when the fruits are harvested, and replace them using a fertilizer program designed to replace just those lost in harvest.  We call it a nutrient balance sheet...remove 100kg of potassium per hectare with the oil palm Frits, replace the 100kg with fertilizer.  The balance sheet concept works pretty well but its not perfect.  let me use your Copernicia baileyana as an example.  One appears to have a potassium deficiency (orangey yellow flecks in the leaves). That might be because your soil doesn't have enough potassium...(that's my bet as I think your soils are somewhat acidic and and rather heavily leached due to your rainfall). Copernicias are native to areas with adequate potassium, as well as calcium and magnesium.  So if your soil doesn't have those nutrients in the same ratios, the Palm is probably having a difficult time finding adequate amounts.  The other thing that comes into play is rainfall.  Potassium can be leached out of the fronds during very wet weather.  So if your Palm can't find enough potassium, and it's losing quite a bit from the fronds due to leaching, you observe the fronds with the yellow-orange flecks.  I am wondering if the damage on the other Copernicia (brown splotches on the newer leaves) is further symptom that the nutrients available in your soil are just very different from where the palms are native.  Those new fronds might be showing Calcium deficiency, manganese deficiency, or something else, maybe even fungal disease.  So my advice is to use the high potassium 15-5-35, the add dolomite lime (which as both calcium and magnesium). And see if they improve.  

Overall they don't look bad.  It's a species that I would love to be able to grow myself, but it gets too cold here.  

Keith,

It is too cold for Copernicia in Jacksonville? Is it the wet cold that is such an issue? They do well in Phoenix for sure and it is a 9a/b, but obvious much drier. 

[Keith N Tampa (ex SoJax)]

55 minutes ago, kirkhutch said:

Keith,

It is too cold for Copernicia in Jacksonville? Is it the wet cold that is such an issue? They do well in Phoenix for sure and it is a 9a/b, but obvious much drier. 

KIRK, I moved to Winter Haven but kept the same forum I.D. For consistency.  Winter haven is about 5 degrees warmer than Jax, but we're smack dab in the middle of the Penninsula.  So we have frequent, short duration frost that can be quite heavy, with fog.  I've seen mornings when everything is glistening white at sunrise and the sun is shining through a shallow layer of fog making it look like a Palm filled winter wonderland.  Though It's quite an amazing scene, plants that can't stand frost just get scorched, even if it's just a couple degrees below freezing for an hour.  Luckily that hasn't happened the last 2 winters, but the two winters before it happened quite a bit.  Copernicia baileyana would just get hammered, I think.  Being such a special plant, I don't have the heart to torture one.