Spinach planting techniques: what is spinach leafminer?

What is spinach leaf miner? Is there any way to prevent it? Please introduce that the main harm of spinach leafminer is that the larvae of spinach leafminer feed on the mesophyll in the leaves and form a wide tunnel. The light harm will affect the quality, lose the commodity value, and the serious harm will cause the destruction of the whole field and great loss. Spinach leafminers hatched more than in the evening, and the hatching larvae looked for non-worming leaves to drill into the mesophyll for one day when the environment was suitable, but when they could not find a suitable host, they could also feed on manure or humus to complete their development. When the larvae mature, some of them pupate in the mesophyll and some of them pupate in the soil. On the other hand, the larvae of the overwintering generation were all buried and pupated, and the pupal period was 6 months long. Spinach leaf miner control methods: 1, early harvest. The overwintering spinach with root stubble must be harvested before Grain Rain in order to reduce the oviposition of overwintering adults. 2. Dig deep into the land. After harvest, the soil should be ploughed deeply in time, which is not only conducive to plant growth, but also destroy part of the pupated pupae, which can reduce the source of insects in the field. 3. Apply sufficient base fertilizer. The application of base fertilizer requires the application of fully mature organic fertilizer, especially barnyard manure, so as not to bring the source of insects into the field. 4. In the critical period from the peak spawning period to the early hatching stage of leaf miner, the effect of spraying is poor. It can be sprayed with 2.5% deltamethrin EC 2000 times, or 20% fenvalerate EC 3000 times, or 40% Chrysanthemum Horse EC 3000 times, or 10% Bromma EC 1500 times 2000 times, or 90% trichlorfon crystals 1000 times. Click to get more spinach planting techniques click to get more vegetable planting techniques