Prevention and Control of Spinach Leaffly
2024-10-20 14:01:43
Controlling hosts of spinach leafminers: vegetables, radishes, beets. Injury features: The potential larvae feed on the leaf leaves only the upper and lower epidermis, showing a massive tunnel. In general, there are 1-2 head lice and insect feces in the tip of the leaf, causing spinach to lose its commercial value and food value. Control methods: (1) Apply sufficient manure. Avoid using raw manure, especially manure, so as not to bring the source of insects into the field. (2) Chemical control. Due to the short growth period of spinach, pesticide residues must be taken into consideration. Short-lived pesticides that are easy to photolyze and hydrolyze should be selected. In addition, because the larvae are damaging to the leaves, the medication must seize the key moments from spawning to early hatching. . It can be used to kill fleas (21% synergistic cyanol emulsifiable concentrate) 8000 times, 2.5% deltamethrin or 20% fenvalerate 3000 times, ciprofloxacin WP 2000-3000 times, 10% Bromohorma Emulsion 2000 times, 10% chrysanthemum cream 1500 times, 25% quinoline EC 1000 times, 80% trichlorfon soluble powder or 90% trichlorfon crystal 1000 times. 50% phoxim EC 1000 times.
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