Orchid disease prevention focuses on the control of watering in three plum seasons, timely watering in autumn and no exposure to sun and steaming in winter.

The disease of orchid often begins when the matrix is damp, unclean or too dry. The substrate is wet and unclean, the air is excluded, the bacteria multiply in large numbers, and the orchid root is damaged, resulting in a variety of diseases, harming the orchid plant. The substrate is too dry, the fleshy root is withered due to physiological dehydration, the transport capacity is lost, the water and nutrients can not be supplied in time, and the orchid leaf is rough and scorched. The orchid plant, which is struggling on the line of life and death, will open its stomata to absorb water from the air in order to maintain its life. all kinds of germs take advantage of the opportunity, and diseases occur subsequently. In addition, fertilization, drug concentration is too high, more than the concentration of blue plant cell fluid, resulting in reverse osmosis, make bluegrass lose water, and also cause disease. In order to prevent orchid diseases, in addition to keeping the environment clean and humid, ventilated, properly watered, light fertilization, timely and appropriate use of medicine, clean and transparent matrix, suitable light and other measures, but also according to the actual situation of various places, grasp the main contradiction, targeted prevention and control.

Orchid disease prevention

The plum rain season has a warm climate and high air humidity, which is the golden season for the growth of bluegrass in a year, and it is also a peak period for all kinds of diseases. According to the author's observation for many years, all kinds of diseases are most likely to occur when the temperature is about 22 ℃. In order to avoid diseases, we must pay attention to two things in this season: one is to control watering, and the other is to apply pesticides in time. In autumn, the climate changes from hot to cool, which is another growing season for bluegrass. The air is relatively dry in autumn, bluegrass is easy to lose water, we should pay attention to timely watering.

At the same time, bluegrass after the hot summer, consumption is larger, resistance is relatively weakened, early autumn should be timely supplement of phosphorus and potassium fertilizer to enhance disease resistance. Autumn is the peak period of all kinds of diseases, so the pesticide must be applied in time. During the period from the week before the Beginning of Autumn to Cold Dew, the medicine should be used every 10 days to ensure that bluegrass can grow healthily from autumn to spring.

Watering orchids

In winter, orchids need to keep warm. Some people build a sealed plastic shed under the indoor balcony or under the eaves of shelter from the wind and the sun, and pot orchids are placed inside to receive sunlight. Sometimes the temperature in the shed is as high as more than 20 degrees, the orchid is steamed, and disease spots occur from time to time. For closed plastic sheds, including glass sheds, when the temperature in the shed exceeds 10 ℃, the windows should be opened in time, the film should be opened, and the air should be ventilated. When the temperature is high and the sun is strong, you still need proper shade and do not be exposed to steam.

Orchid disease prevention

Control watering in plum season, timely application of pesticide; timely watering in autumn, supplement of phosphorus and potassium, timely use of medicine; do not be exposed to sun and steam in winter, is the key to disease prevention and treatment in different seasons. Dear Orchid Friends, how do you do orchid disease prevention? If you also like orchids, welcome to follow and forward, thank you for your comments and likes, thank you!