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Canary Island date palms
Canary
Island date palms were injured by direct exposure to salty air along the coast.
Those
more than a quarter mile or so back from the coast did not show as much salt
damage as those that received direct exposure close to the beach.
Sometimes all fronds turned
brown but the petiole and midrib of the frond usually remained green. Since
the green midrib and petiole is the only green tissue remaining on the plant,
the fronds must be left on the tree in order for the palm to recover. Removing
salt injured fronds will remove most of the photosynthetically active tissue
and could further stress the palm.
