What to Do When String of Pearls Has Pests
As a star variety in the succulent world, the round and plump leaves of String of Pearls are highly attractive to scale insect infestations. This article will systematically analyze the causes and mechanisms of pest infestations in String of Pearls, and provide actionable prevention and treatment solutions to help you quickly rescue the plants troubled by pests.
Analysis of the Three Main Causes of Pest Infestation in String of Pearls
Poor Ventilation in the Environment
Enclosed spaces lead to obstructed air circulation, providing an ideal breeding environment for scale insects. It is recommended to maintain daily ventilation for 3-4 hours, with humidity controlled between 40-60%.
Imbalance in Soil Moisture
Heavy and compacted soil easily accumulates water, and high humus content can attract pests to lay eggs. Use a special succulent soil with over 60% particle content, and a mix of red jade soil and deer marsh soil works even better.
Decreased Plant Resistance
Long-term lack of sunlight (less than 4 hours per day) can lead to weakened plant immunity. Ensure full sun in spring and autumn, and provide appropriate shading in summer.
Four-Step Radical Treatment for String of Pearls Pest Infestation
Physical Removal Stage
When white fluffy substances are first discovered, use a soft-bristled toothbrush dipped in 75% medical alcohol to clean each leaf. After the operation, use a cotton swab to absorb the accumulated water in the leaf axils to prevent secondary infections.
Biological Pesticide Control
When the number of pests is large, it is recommended to alternate between applying imidacloprid (1:1000) and matrine (1:800) sprays, with a 5-day interval between applications. Continuous application for 3 weeks can show significant results.
Comprehensive Environmental Regulation
After treatment, move the plant to a well-ventilated area with scattered light to recover, and complement with the application of potassium dihydrogen phosphate (1:2000) to enhance resistance. Maintaining a temperature difference of 15-20°C at night can inhibit egg hatching.
Long-Term Preventive Management Plan
Conduct regular monthly checks on the undersides of leaves and the connections of stems, and pre-bury small white pesticides (dinotefuran) in spring and autumn. It is recommended to establish an isolation area, and new plants should be separately cared for and observed for 2 weeks.
Through environmental regulation, physical removal, and pesticide control, combined with routine preventive maintenance, you can completely free String of Pearls from pest troubles and restore its translucent, jade-like luster.