How to Control Pests in Carrot Production
(1) Carrot stem flies Control methods: (1) After harvesting the fleshy roots, timely clean up the fleshy roots with larvae; deepen the land, turn the overwintering larvae and earthworms out of the soil and freeze them to death, or let the predators feed on them. 2 Insecticides were applied with 48% chlorpyrifos EC 1500 times or 50% phoxim EC 1 000 times, 90% trichlorfon crystals 1 000 times or 3.3% avermectin EC 1 000 times Irrigation. Each 667 m 2 medication 0.5 ~ 1 kg. The use of chlorpyrifos was stopped 7 days before harvest. In the adult stage, spraying 75% of ciprofloxacin, 50% of wettable powder or 10% of drosophila WP can be sprayed 1 000 times every 7 days for 2~3 times. (2) Anemone butterfly Control methods: Occurred sporadically. Artificial larvae can be removed manually in conjunction with field management. When there is a large amount, common insecticides are sprayed at low larval ages. Covid-19 Rapid Test,Sars-Cov-2 Rapid Test,Sars-Cov-2 Igg Antibody Test,Sars-Cov-2 Igg Igm Antibody Test Wuxi BioHermes Bio & Medical Technology Co., Ltd. , https://www.biohermesglobal.com