Leafminers belong to Diptera and are divided into many families and species. Hosts mainly include leafy vegetables, melons and fruits, and beans. The main damages are as follows: larvae damage the latent leaves, leaving the upper and lower epidermis on the leaves and forming twists and turns to affect the growth of vegetables. Generally, there are 1-2 head lice and insect excrements in the leaf tip, causing the vegetables to lose their commercial value and food value. The worm can develop on manure and humus when it cannot find a suitable host. The prevention and control measures are: comprehensive application of agricultural technical measures, vigorously developing biological control technologies, scientific physical control measures, strict control of chemical control measures, and implementation of pollution-free production technology operating procedures: 1. Apply sufficient manure to avoid the use of unfermented manure, especially manure; 2. Since the adults of the leaf miner have a tendency towards yellow, yellow plates can be used for sedation; 3. Since the leaf miner is the larva stage, the drug must catch the key moment of spawning to the early stage of egg hatching. This period is also the period when the insect pests have the lowest resistance. The commonly used agents are: sprayable. 40% green vegetable treasure 1000 times liquid, or sprayed with 21% killing wolfberry oil 3000 times liquid. Observe the principle of use of pesticides, correct selection of pesticide species, prohibit the use of highly toxic, high-residue pesticides, the amount of pesticides, dilution times, application methods and safety intervals, etc., to implement the "Pesticide Safety Use Standards" issued by the Environmental Protection Bureau. Stenosis Ureteral Stent,Ureteral Stent,Urethral Catheter,double j catheter Anesthesia Medical Co., Ltd. , https://www.honestymed.com
Occurrence and control of leafminer in vegetables