Cooling or transport spots
Plants transferred from the growing department to the flowering department may develop
sunken spots on the foliage. These spots are caused by the death of some or all of the cells.
These cooling or transport spots may also develop as a result of stress and an excess of light
on moving the plant.
Phytotoxicity
Caution should be exercised with respect to phytotoxicity; not all chemical agents can be
used on Phalaenopsis without causing damage. You can contact Bureau IMAC Bleiswijk B.V.
for adequate pest-control measures. Any new pesticide agent should be tested on a few
plants prior to large-scale use. It is also necessary to take account of the slow response of
the plants when making an assessment of the effectiveness of a specific treatment