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Jason in SB CA

Phoenix canariensis disease?

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Jason in SB CA

My parents have two Phoenix canariensis that have been growing fine, but recently one of them has started to produce malformed fronds. Their gardener said it is a disease, but I am not sure if that is the case. I know they likely do not sanitize their tools in between trimming, so I would imagine all their canary island date palms would have this problem. If it is a disease, what can be done?

 

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Jason in SB CA

For fun, here are some other palms I have growing there:

Ceroxylon alpinum
Roystonea borinquena (or oleracea, can't remember at the moment)
Rhopalostylis baueri
Dypsis decipiens
Parajubaea torallyi

and others

 

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kinzyjr
31 minutes ago, Jason in SB CA said:

My parents have two Phoenix canariensis that have been growing fine, but recently one of them has started to produce malformed fronds. Their gardener said it is a disease, but I am not sure if that is the case. I know they likely do not sanitize their tools in between trimming, so I would imagine all their canary island date palms would have this problem. If it is a disease, what can be done?

Almost looks like frizzle top, but I haven't seen it on Phoenix canariensis.  If it is, fertilizing with manganese will help correct this issue. 

Might also be boron deficiency: https://edis.ifas.ufl.edu/pdffiles/EP/EP26400.pdf

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