Cameo Common Diseases and Pests and Control Methods
Cameo, as a rare variety of succulents, is loved by gardening enthusiasts for its unique shape. However, diseases and pests often plague growers during the maintenance process. This article systematically sorts out typical symptoms and solutions for Cameo, helping you establish a scientific control system.
Key Points for Cameo Disease Control
Recognition and Treatment Plan for Rust Disease
In the early stage, rust disease forms yellowish-brown spots on the stems, which develop into raised rust-colored plaques as the condition progresses. When the air humidity is >70%, the pathogen spores can enter through the stomata, causing secondary damage such as chlorosis of the leaves and exfoliation of the stem epidermis. It is recommended to spray with a 12.5% diniconazole wettable powder solution diluted 2500 times every 10 days, and to disinfect the cutting tools with alcohol when pruning the diseased branches.
Preventive Maintenance Tips
Maintaining a day-night temperature difference of >8°C can effectively inhibit the multiplication of pathogens. The matrix proportion is recommended to have perlite account for no less than 40%. Apply seaweed extract every month during spring and autumn to enhance the plant's resistance to stress, and avoid excessive nitrogen fertilizer, which can lead to thinning of the cell walls.
Cameo Pest Control Strategies
Root-knot Nematode Elimination Guide
This nematode is 0.8-1.5mm long and primarily危害s during late spring and early summer. Initially, it causes new leaves to be malformed and curled, and in severe cases, the roots form bead-like galls. When applying a 50% carbendazim solution diluted 800 times for root irrigation, ensure the soil moisture is around 30%, and treat continuously for 3 times with an interval of 5 days each time.
Pest Emergency Plan
When the pest density is >20 heads/cm³, it is recommended to use the beheading cutting method: retain the top 5cm of healthy stem, soak in a 2000-fold solution of indole butyric acid, and then dry for 3 days. The mother plant needs to be watered with 90°C hot water to disinfect the matrix, thoroughly destroying the eggs.
By establishing a pest and disease monitoring log, recording temperature, humidity, and treatment measures, the efficiency of control can be significantly improved. It is recommended to replace the top 3cm of soil every quarter and add Bacillus subtilis to the irrigation water for biological control, achieving a comprehensive maintenance effect of treating both symptoms and root causes.