Style Observer

Gardening — April 22

Dear Orchid DOC

Betty Ashley

Sunday, April 22, 2018

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Dear Orchid Doc:

My orchids are getting long black streaks on the underside of the leaf. The Miticide insecticide doesn't seem to be working. What should I do?


Dear Grace:

There is a possibility that the problem might not be mites. From my recollection mites usually create a grater-like effect on top of the leaf.

In my opinion, it appears to be a bacterial spot.

You will need to separate those plants that are affected.

BioLife is a good insecticide that works well in preventing a spread of the bacterial spots.

Dear Orchid Doc:

My Vandas are going long-necked on me. I would love to cut them but they have no roots along the nape of the neck.

Are there any suggestions?

Marjorie, Runaway Bay

Dear Marjorie:

Judging from the pictures you either seem to have recovered from a fungus or you have not been watering enough and hence had dropping of leaf.

There is a film of dry “skin” on the body of the orchid where the leaves had dropped from. Please peel off the dry skin , as this will cause further fungus, water well and allow good sunshine. Roots will soon start to grow where the leaves fell from.

Please treat with fungicide also.

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