Beware of greenhouse flower diseases in rainy season

The rainstorm weather makes many crops suffer from waterlogging, and although the flowers in the greenhouse are lucky to reduce the waterlogging, but because the greenhouse is often closed and unventilated, the temperature and humidity have increased, such an environment can easily lead to the occurrence of diseases and insect pests. Therefore, attention should be paid to cultivation and management in order to avoid or reduce the occurrence of diseases and insect pests.

1. The placement of flowerpots should not be too dense, spray watering is prohibited, and watering times should be reduced. 2. Properly increase the application of phosphorus and potassium fertilizer and less nitrogen fertilizer. 3. Timely drainage after rain, greenhouse ventilation and light transmission, in order to cool down and dehumidify. 4. the diseased leaves should be cut off and destroyed in time, and the general of tree protection should be sprayed in the shed in time to restrain the replication of germs and improve the control effect. 5. Anthracnose, leaf spot, blight and other diseases are easy to be caused in the rainy season. Targeted agents combined with 500-fold solution of new high lipid film can be sprayed at the initial stage of the disease, once every 7 to 10 days, which can shield the sense of smell of insect pests, inhibit the replication of bacteria, reduce their drug resistance and dosage, and improve the effect of pesticides.