What to do if there are many small black insects on begonia flowers
In the blooming season of spring begonias, many flower enthusiasts find that the leaves and flower buds are densely populated with small black insects. These aphids and scale insects not only affect the ornamental value but also harm the health of the plants. This article compiles 4 commonly used household eco-friendly control methods to help you scientifically care for begonia flowers.
Four Natural Pest Control Methods
Tobacco Water Insecticide Method
Nicotine has natural insecticidal properties. Take 3 cigarettes, strip the tobacco, and soak it in 500ml of water for 24 hours. When the liquid turns amber, filter and bottle it. Spray the affected areas in the morning and evening, avoiding strong sunlight, and continue for 3 days to see significant results. This method is especially effective for newly hatched larvae.
Soap Solution Sealing Method
Choose plant-based soap base without additives and dissolve it in 45°C warm water at a ratio of 1:50. The soap solution can form a sealing film on the surface of the insects, blocking their respiratory system. Focus on spraying the back of the leaves where the eggs are concentrated, and use a cotton swab for physical removal. Rinse the leaves with water 6 hours after application to avoid soap residue.
Garlic Juice Insect Repellent Method
Crush fresh purple-skinned garlic to extract the juice and dilute it with water at a ratio of 1:15. The irritating odor released by allicin can repel adult insects and also destroy the protein structure of the eggs. It is recommended to use a misting spray bottle and spray the leaves two to three times a week, with better results in a well-ventilated environment.
Ginger Liquid Protective Method
Boil 200g of sliced ginger, filter the ginger juice, and store it in the refrigerator. When using, dilute it with water at a ratio of 1:20 and add 5 drops of tea tree oil to enhance adhesion. In addition to directly killing insects, it can also form a protective layer on the surface of the plant, preventing recurrence of pest infestation. Note that it should be prepared and used immediately, as it easily oxidizes and loses effectiveness if left for too long.
While implementing the above methods, it is recommended to complement environmental management: maintain proper spacing between plants for ventilation, regularly prune dense branches and leaves, and use yellow sticky traps for physical pest capture. If the pest infestation is severe, alternate the use of different formulas to enhance the effect. Adhere to a prevention-first, comprehensive control principle to ensure the healthy growth of begonia flowers.