Which insecticide is effective in controlling peach heart borer

(agricultural Wealth net) Peach heart borer, also known as peach fruit borer, belongs to the family Lepidoptera, which is the main pest harmful to fruit. The host plants are apple, pear, Hawthorn, peach, plum, apricot, jujube and so on, and apple, pear, jujube and Hawthorn suffer the most. The fruit was eaten by larvae to reduce the quality and yield of apples. In recent years, we conducted an experiment on the control of peach heart borer in unbagged apple orchard, which was divided into three treatments: 1% methylaminoavermectin EC, 2.5% deltamethrin EC and 2.5% cypermethrin water emulsion. The results showed that 2.5% cypermethrin water emulsion had a good quick effect on the control of peach heart borer, and the control effect reached 65.05% on the fifth day after the drug, but it had a certain killing effect on natural enemies. Although the quick effect of 1% methylaminoavermectin EC is poor, it lasts for a long time, the control effect is as high as 73.3% after 10 days, and does not harm natural enemies, so it is a suitable agent for the production of pollution-free apples.