P:I am asking for advice on how to "heal" my young howea palm from small brown dots - spots.
O:It is difficult to make a proper diagnosis from this description.These may be thrips that should be sprayed with an insecticide containing the active substance pyrethrum or malathion.
If these dots are papillary swellings, these are scales that should be scraped with a cloth soaked in denatured alcohol and sprayed with an insecticide containing malathion or dimethoate.
Such a dark coating on the leaves may be a symptom of a soot - a fungus that develops on honey dew secreted by aphids, scales and greenhouse whitefly.In this case, we must remove the heavily infected leaves, wash the remaining leaves with lukewarm water and remove the direct cause of the appearance of this fungus.
It is also possible that the plant was sprinkled with water in the sun, causing leaf burns.Plants should be sprinkled in the shade, and safest early in the morning or in the evening.
