Care of Orchids

Care of Orchids


At the leaves are black dots. What should you do?
In most cases, black dots are the result of fungal (Fusarium, Botrytis) or bacterial (Erwinia, Pseudomonas) infections. The difference is difficult to determine, in any case, isolate the affected plants. Fungal infections treated with fungicides (Dithane M45, Antracol), with bacteria-infected plants, however, rather discard, because the curative use of bactericidal often insufficiently effective. In many cases, the spots are due to natural aging process and death of older leaves, which is normal and inevitable.
On the flowers are black dots. What should you do?
Gently tissue flowers are an easy target for aggressive fungus (Botrytis), causing black spots on the flowering leaves. Use of fungicides is meaningless, because the flowers are permanently damaged. Phenomenon can best be avoided if the plants do not spray after the flowers, especially the dangerous mist after sunset when the air temperature drops. So, we need to avoid high air humidity (dew) in combination with low temperatures (below 16 ˚ C).

Care of Orchids