Common Diseases and Control of Cacti
An in-depth introduction to the popular topic of cacti, focusing on the common diseases and their control, let's learn about it together.
The pathogens that harm cacti flowers include bacteria and fungi, but the problem is not very serious. As long as the cultivation conditions are improved and the management measures are proper, with both preventive and control measures against diseases and pests, it is easy to achieve good results. The more common diseases and pests include: 1. Rot disease. The pathogens include both bacteria and fungi. The occurrence of this disease is often related to improper watering, poor drainage of potting soil, and persistent excessive moisture. Once a diseased plant is found, immediately cut off the affected tissue with a sharp knife and apply charcoal powder or sulfur powder to the incision, while reducing watering or changing pots, and propagate by cutting or grafting. It is best to regularly spray a 40% copper oxychloride suspension at a dilution of 800-1000 times on the planting site and plants for prevention, but the main approach is to improve ventilation and avoid persistent excessive moisture. 2. Insect and other animal damage. Mainly scale insects, red spiders, and snails. To control scale insects, spray a 50% omethoate emulsion diluted 1000 times; to control red spiders, spray a 20% dicofol wettable powder diluted 600 times or a 40% dicofol emulsion diluted 1000 times; to control rodents and ground beetles, spray a 2000 times dilution of Lorsban around the flower shelves and pots; to control snails and slugs, spray lime powder around the pots, or apply an 8% metaldehyde granular pesticide; to control cockroaches and ants, place pesticides or sugar water mixed with dichlorvos to poison them.
The above is a comprehensive introduction to the common diseases and control of cacti, hoping to bring some knowledge about green plants to plant enthusiasts.