According to many years of observation, the leaf miner is both a pea in autumn and a spring pea in spring. Four to five generations may occur in one year, but it is severely affected by the end of spring and early summer. Control methods: First, for serious damage to the pea sprouts, we must completely remove the pests and reduce the population base number: Second is to carry out a general survey of the damage, in the initial stage of pest control, to prevent proliferation, can be used 5% stuck Emulsion 1000 times spray, or 10% imidacloprid WP 1000 times, or 25% quizphoria EC 1000-1500 times, or 40.7% Loester 90-1500 times, or 20% Spot viscosifying net microemulsion 1500-2000 times liquid, or ciprofloxacin 10% suspension 1500 times liquid or 75% wettable powder 10000 times spraying; Third, spraying to make the leaves fully wet; Fourth, summer high temperature Should be sprayed in the morning and evening; five is sprayed every 10 days or so, sprayed 2-3 times.