Palm S.O.S need help !

[Kris]

Dear Friends,

Can you please take time in finding the problem in this CIDP,which belongs to an elderly gentleman who is in the U.S.But does not know which insecticide or pesticide to spray on his infected canary palm. He says its leaf skeletonizer disease..

Iam posting those stills here for experts to analyse and let us know what chemical/Brand he should spray and what other treatment he must give to his palm.If you all inform it sooner the better.

Thanks and love,

Kris.

 

[Kris]

Here are the visuals..

Btw. This infection is seen in most of the old fronds,and he is worried it would spread to the newer leaves.He says overall the palm is healthy but for this infection.

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[Nakheel1412]

Hi Kris,

For the black and white spots, it's Graphiola phoenicis (http://edis.ifas.ufl.edu/pp140), it doesn't kill palms (unless there is an extreme potassium deficiency I guess) ;

For the dead/damaged leaflets, I have no idea ; Some seem to be covered with some fluffy fungal tissue, but I really can't tell what it is :s

[Fusca]

Yes, from what I understand the graphiola appears first on the older fronds and can spread from spores and cause accelerated death of the older fronds - mostly a cosmetic issue.  My phoenix silvestris is infected and it looks terrible, but the palm continues to grow fine.  The graphiola developed initially in the humid Houston, Texas area before my purchase.  I tried a foliar copper fungicide spray which did not help it and I foolishly removed (carefully as not to spread the problem) several green infected fronds thinking that I could stop the problem, but it grows from spores released the previous year!  So the graphiola eventually infected more and more fronds.  Now that I am located in a less humid environment I am hopeful that it will eventually clear up in the next year or two.  Fortunately none of my other palms have been infected.

Jon

[Kris]

Dear Omar and Jon,

Thanks for the information.But is their any broad spectrum chemical to spray on those infected palm ?

i,e iam asking for a name/brand of insecticide to cure this palm that is available in the U.S.

Thanks and love,

Kris.

 

[Monòver]

As people says, this is Graphiola. It is a common diseasse in Phoenix dactyliferas, but mostly, a cosmetic problem.

For recover the palm the best is trimm the old leaves and better care. More water and feed(potassium) and if you want use chemicals,"Mancozeb" is the fungicide.

[Kris]

Dear Antonio,

Thanks for the information.And yes that is what it is.

http://edis.ifas.ufl.edu/pp140

Love,

Kris.

 

[Tingtongthai]

I had the same palm leaf skeltonizer thats the one with the brown frass tubes..................finally  after much enquiry CYPERMETHRIN  killed the  buggers, has to be sprayed on heavily  but it does kill them.

Youll have to repeat as and if it appears again. Its  run rampant thru Malaysia and into Thailand and it DOES  KILL the trees despite what's  written.

Numerous coconuts been totally destroyed round by me all headless  stumps.

[Sandy Loam]

Is this it?:  http://www.palmtalk.org/forum/index.php?/topic/44793-got-homaledra-sabalella/

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0022331

http://www.gainesville.com/article/LK/20120421/News/604135580/GS/

https://portal.nifa.usda.gov/web/crisprojectpages/0194602-identification-bionomics-and-control-of-palm-leaf-skeletonizers-homaledra-spp.html

If so, it does not appear to be the same thing as Graphiola phoenicis.

[Kris]

Dear Paul and S.L,

Thanks for the additional information friends.

Love,

Kris.

 

[Tingtongthai]

On 12/6/2017, 12:52:28, Sandy Loam said:

Is this it?:  http://www.palmtalk.org/forum/index.php?/topic/44793-got-homaledra-sabalella/

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0022331

http://www.gainesville.com/article/LK/20120421/News/604135580/GS/

https://portal.nifa.usda.gov/web/crisprojectpages/0194602-identification-bionomics-and-control-of-palm-leaf-skeletonizers-homaledra-spp.html

If so, it does not appear to be the same thing as Graphiola phoenicis.

Id  already read  all these  articles and many contain inaccuracies on the leaf skeletoniser which IS  visible in the photos, he has two problems 1.Graphiola phoenicis 2 Leaf Skeletoniser which Im referring to below only

1 it wont kill the palms....it does, most definately, the trees  cannot  keep up the  rate of leaf production against the caterpillars appetite

2 Chemical spray wont get into the frass tubes easily to  kill them....it  does

Cypermethrin was the one that worked best for here as Im not sure which species of Moth it is exactly.

You have to soak the leaves thoroughly and  currently there is NO other method available to deal with this here.

Ive been here 5  years and this wasnt here when I arrived, its  appeared in the last 2-3 years, the  govt has even helped pay farmers to spray their coconut trees.

I read they prefer sandy soil areas which i am..............in many places even nearby there are none...?

It IS a  major  pest, forget your  Rhynchophorus beetles this is way worse.

Edited December 7, 2017 by Tingtongthai

[Kris]

Here in this thread i wish to compile other palm related treatments,So that one who visits this thread will easily navigate to other topics which are of similar importance..

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