Hello,

I have few sick majesty palm's, they are not looking good under mediternaneanen climate maybe due to the winter ?? or maybe other deficiencies .... 

Could you help me to make them look good again ?

 

 

 

 

Ravenea rivularis grows fast in mediterranean climates, but needs lots of water and fertilicer.

And reading other experiences with this speaces, it hates tab water in the crown in Winter.

Yours need to be feeded with NPK fertilicer + micros and may be a treatment with H2O2 in the crown.

If the red weevil is in your area, you have other problem. Weevils love Raveneas.

Looks like you might have some crown rot.  Are those new spears growing or stalled?  (did you give them a gentle tug to see if they pull?)  I agree a good drench of peroxide would be a place to start.  

R.rivularis love water, but they still need drainage.  Is that bucket/pot tapped/open on the bottom?

If not for that rot, I would just say it's acclimating to full sun outside.  Mine looked similarly ratty for a month or so every spring when I put them out. Usually dumped the bottom couple leaves as the new spears shot out like crazy.

5 hours ago, Monòver said:

Ravenea rivularis grows fast in mediterranean climates, but needs lots of water and fertilicer.

And reading other experiences with this speaces, it hates tab water in the crown in Winter.

Yours need to be feeded with NPK fertilicer + micros and may be a treatment with H2O2 in the crown.

If the red weevil is in your area, you have other problem. Weevils love Raveneas.

Thanks, how can I treat with H2O2  ? I do have 10% hydrogene peroxyde should I dilute with some water and spray in the crown ?  What ratio to dilute 10% hydrogen peroxide ?

3 hours ago, Funkthulhu said:

Looks like you might have some crown rot.  Are those new spears growing or stalled?  (did you give them a gentle tug to see if they pull?)  I agree a good drench of peroxide would be a place to start.  

R.rivularis love water, but they still need drainage.  Is that bucket/pot tapped/open on the bottom?

If not for that rot, I would just say it's acclimating to full sun outside.  Mine looked similarly ratty for a month or so every spring when I put them out. Usually dumped the bottom couple leaves as the new spears shot out like crazy.

The new spears didn't pull they seems ok but little yellow and shorter than usal. The bucket/pot is open on the bottom and it is in the garden in shady spot no full sun. 

Thanks

Edited June 12, 20188 yr by dwimss

Ravenea rivalaris needs considerably more magnesium than other palm species and will stop growing and lose the green in their leaves if deficient. I'd feed them the recommended amount of a Palm specific food and add extra magnesium (Epsom salts). Keep them well watered and make sure the water drains out the bottom of the pot. 

From my experience with them, looks like a couple things. Potential cold damage (how cold did it get?), fungus, and lack of nutrients. The damaged fronds I wouldn't worry about. As other suggested, definitely treat with peroxide. I use 3% and works very well. Do not use 10% as that can damage the palm. I would treat twice per week for 2 weeks then once per week until you see progress. Maybe a month. Give it a good palm fertilizer treatment with some additional Epsom salts. Water at the roots to keep the soil moist. Here is mine that experienced cold damage this year. Older fronds were fried and are growing out. I lost a sister to it this winter from fungus. 

Peroxide, dilute with water, dump into crown.

It looks big enough to plant out in the ground.

Would that help?

Dilute the peroxide with distilled water away from sun exposure. Equal quantitites of peroxide and water should make a solution half strong, i.e. 5%. Remember to pour the peroxide in to the water and not vice versa.

21 hours ago, Phoenikakias said:

Dilute the peroxide with distilled water away from sun exposure. Equal quantitites of peroxide and water should make a solution half strong, i.e. 5%. Remember to pour the peroxide in to the water and not vice versa.

Thanks I try this!

 

On 12/06/2018 à, Monòver said:

Ravenea rivularis grows fast in mediterranean climates, but needs lots of water and fertilicer.

And reading other experiences with this speaces, it hates tab water in the crown in Winter.

Yours need to be feeded with NPK fertilicer + micros and may be a treatment with H2O2 in the crown.

If the red weevil is in your area, you have other problem. Weevils love Raveneas.

Ive got this fertilizer 12 N + 11 P + 18 K + Mgo + S + TE, do think its good for palms ? 
Composition desc is in french :

 

 

I fear that this fertlizer is unsuitable. It is not a slow releasing one (at least it is not not stated on the bag) and magnesium is to low compared to potassium. Magnesium should be with 18% potassium at least 6%.

On 15/6/2018 20:23:20, Phoenikakias said:

I fear that this fertlizer is unsuitable. It is not a slow releasing one (at least it is not not stated on the bag) and magnesium is to low compared to potassium. Magnesium should be with 18% potassium at least 6%.

An small correction for a small mistake, Potassium 18%, Magnesium 6%

On 15/6/2018 13:20:39, dwimss said:

Thanks I try this!

 

Ive got this fertilizer 12 N + 11 P + 18 K + Mgo + S + TE, do think its good for palms ? 
Composition desc is in french :

 

 

It looks a cheap fertilicer. May be you need a better one with less phosphorus, more Magnesium and chelated Iron and Manganese.

In Morocco there are lots of citrus grows. Citrus and palms need "same" fertilicers in mediterranean climates. 

There are lots of citrus fertilicers with high potassium and high magnesium and chelated micros.

Good luck!

On 17/06/2018 à, Monòver said:

It looks a cheap fertilicer. May be you need a better one with less phosphorus, more Magnesium and chelated Iron and Manganese.

In Morocco there are lots of citrus grows. Citrus and palms need "same" fertilicers in mediterranean climates. 

There are lots of citrus fertilicers with high potassium and high magnesium and chelated micros.

Good luck!

Thanks for the information, I got one but couldn't find here a slow release : 

I think you have same in Spain : 

 

The composition : 

Boron 0.5 %
Copper 1.5 %
Iron 4 %
Manganese 4 %
Zinc 1.5 % 
Magnesium oxide 9 %

 

Also I have talk with someone selling fertilizers and I may find manganese in powder...