Queen Deficiency

[Cayman1]

Having some issues with my 4-5’ queen palms that have been planted for almost 2 years. 
 

First picture shows a good example of what is going on with them.

Second picture is a palm that appears to be dead/dying. This palm was fine then within a week or so, went to this. Very rapid. This is the 2nd one that has done this. All fronds die then the newest in the center stays somewhat green. The other one that did this several months ago, eventually went dead.

 

Any suggestions would be very appreciated. 
 

 

[PalmatierMeg]

If they haven’t been exposed to temps in the low 20s and are suffering cold damage, my take is fusarium wilt. Wilt is lethal, contagious and fast moving. Once symptoms start the palm goes from green to dead in a few weeks. A prime symptom is that fronds die one side first, then the second, i.e. frond is half green, half yellow/brown finally all brown. Wilt is untreatable and incurable. All that can be done for it is cut up the affected palms, bag them and send them out with the trash. Clean gardening tools with bleach - contaminated tools are a prime is a prime source of contagion. Queens, mules, Washies and some Phoenix are subject to this disease. I lost all my queens, mules and a Washy to wilt in 2015/2016. Do not replant any of those species.

My condolences. I hope I’m wrong.

[Merlyn]

As Meg said, Fusarium wilt is brutal to Queens.  I lost one of my ~9 that were in the ground, and treated the others with Banrot as a preventative.  The key diagnosis for this disease is the one-sided death of the fronds.  If you see that it's definitely Fusarium and there's nothing you can do to treat it.  Here's my post with a good photo of the one-sided frond death:

 

[Cayman1]

I’ve never noticed one side dead and the other green on any of these. Not sure if it’s the same or not. I’ll keep an eye out for this 
 

The first picture is from a healthy tree… just looks like a deficiency to me, possibly potassium?
 

 

[Merlyn]

I actually didn't notice the one-sided death until I was up on the roof fixing shingles.  My wife walked around the corner and looked up and said, "Why is only half of that frond dead?"  Or something like that....  If you take a close look at all of the fronds from below, you might see it.

As far as the leaves go, it looks like maybe a combo of Magnesium and Potassium deficiencies.  SulPoMag or K-Mag or Langbeinite are good long-term treatments to help that.  But if they are going from fine to dead in a couple of weeks no amount of fertilizer is going to help.

[Cayman1]

18 hours ago, Merlyn said:

I actually didn't notice the one-sided death until I was up on the roof fixing shingles.  My wife walked around the corner and looked up and said, "Why is only half of that frond dead?"  Or something like that....  If you take a close look at all of the fronds from below, you might see it.

As far as the leaves go, it looks like maybe a combo of Magnesium and Potassium deficiencies.  SulPoMag or K-Mag or Langbeinite are good long-term treatments to help that.  But if they are going from fine to dead in a couple of weeks no amount of fertilizer is going to help.

Thanks for the information. The dead one is dead, but the other 5 are ok, just seem to have a deficiency. I guess I made it confusing by putting 2 topics together. Thanks! 

[Palmfarmer]

19 hours ago, Cayman1 said:

Thanks for the information. The dead one is dead, but the other 5 are ok, just seem to have a deficiency. I guess I made it confusing by putting 2 topics together. Thanks! 

I would start building up the soil around the other ones. Incorporate compost, manure, fish meal, bonemeal, bloodmeal, kelpmeal, alfalfa. Greensand Etc  (you don't need all of those just some Suggestions on things you can add.) Also add a good organic fertilizer And mulch. While the soil improves over time use some fast acting syntetic fertilizer. Many fertilizers for blooming are high in potassium so use that or a palm spesific fertilizers. I would feed it some epsom salt for some time as well while your soil is Improving.