This blog we will continue talking about orchid ailment called Black Rot. When the weather is rainy or damp for extended periods, A danger to orchids called black rot can quickly make damage badly to an entire plant if left unchecked. Black Rot is caused by one or both of the fungi Pythium ultimum and Phytophthora cactorum. Black rot affects a wide variety of orchids. Cattleyas seem to be susceptible more than others.
Life Cycle