How to stop bulb rot in Cynbidium orchids
11 August 2013 11:38 PM
Hi Peter,
We do not have a specific fungicide available that prevents bulb rot in cymbidiums.
I guess the key to preventing the bulbs from rotting is to have your orchids growing in a good quality orchid mix that drains well and does not hold excessive moisture. In winter you would no doubt water less than you would during the hot summer months.