PSEUDOMONAS CATTLEYAE: Brown Spot

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

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It affects cattleyas, phalaenopsis and others; starts as soft, water-soaked lesion, becomes brown or black; advances rapidly; exudate is very infectious; destroy infected parts; spray with Physan at 1.5 tpg. Monthly; if rotted dip all in Natriphene at three-quarters tpg. for 60 minutes and repeat in three to seven days; spray all with Thiram (Tersan 75) at 1.5 ttpg. weekly. BU47+
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More The Orchid Doctor Articles under the Heading Pseudomonas cattleyae

Pseudomonas cattleyae Comments
PSEUDOMONAS CATTLEYAE: Common in Phalaenopsis The diseased part should be cut out with a clean razor blade; tap the contents of a Chloromycetin 250 mg. capsule (available from veterinarians) across the cut. OD87-156 0
PSEUDOMONAS CATTLEYAE: In Cattleyas A bacterial pathogen; mild effect on old leaves but can be epidemic on cymbidium seedlings; recommend control with Natriphene, Physan, tetracyclines, Polymixin B. OD67-50Its characteristics; its sensitivity to Panogen, Physan 20, Natriphene; refer to OD71-224+ 0
PSEUDOMONAS CATTLEYAE: In Cymbidiums Submerge the plant in Natriphene solution 1:2,000 or three-quarters of a teaspoon to a gal. of water; repeat in five to seven days. A66-204 0

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