Hello. If you have identified the pests as aphids (Aphids - pest management – from the pictures it is not clear enough), for their control it is recommended to carry out two treatments, alternating insecticides such as in a dose of 5 ml/10 L water or in a dose of 1.5 g/10 L water, applied by foliar spraying, at intervals of 7-10 days between treatments, according to the instructions in the products description. To increase the efficacy of the insecticides, it is recommended to add to the solution an adjuvant such as , in a dose of 2 ml/10 L liquid. Spray the solution as finely as possible, in order to achieve a more uniform distribution of the mixture on the whole tree, while respecting the general recommendations for the application of phytosanitary treatments: Phytosanitary treatments - environmental and labor protection.
Additionally, to improve the quality of the soil, stimulate root expansion and increase the resistance of the silk tree, you may consider using a specially formulated fertilizer, such as or , by watering the roots, according to the instructions on the label of each product.
In the future, in order to detect the presence of pests (aphids, flies, etc.) early on and to be able to apply a treatment at an early stage of the attack, it is recommended to use an adhesive trap such as . The pests are attracted by the color of the paper and stick to the special adhesive.