"Q. My vandas and ascocendas have spiked but many of the buds have blasted. The plants are growing in 50 percent shade with morning sun, daily watering and are lightly fertilized weekly. Do you have any ideas?...
A. The problem is probably thrips [???], which can get into the buds and blast the flowers. They like hot, dry weather, but our rainy season should wash them away. You can also hose the plants down in the early morning hours. Air pollution also can cause flower malformation. We had a number of days when pollution was high recently. Try using Organocide when the temperature is below 80 degrees. Experiment on an orchid you are not too fond of to see how it works before spraying your collection." source : http://www.sun-sentinel.com/features/columnists/sfl-hg14haehlejul14,0,1952708.column?coll=sfla-features-col ********** regards, VB _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
