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Two pots of gardenias have small white flying insects, smaller than ants. Where can I buy pesticides in Yueyang?

This is whitefly, which is difficult to treat. You can buy pesticides such as cypermethrin or dichlorvos from pesticide shops in suburbs or towns, and dilute and spray them according to the instructions. Because whiteflies will avoid flying to other places, you can cover the flowers with a large piece of transparent plastic cloth, put some pesticides in the lid of the vial, and put them in the pot soil without dilution. Put them in a warm and sunny place, the liquid medicine will volatilize, and whiteflies have nowhere to hide in plastic bags. The effect is very good. At the same time, it is best to dilute with imidacloprid before watering the flowers. This is my personal experience.