灯盏花大田杂草种类调查及防除

Investigation,prevention and control of weeds in Erigeron breviscapus fields

经过4年对灯盏花田杂草种类的调查确定,在云南玉溪地区灯盏花田常见杂草有32种,隶属16科,主要杂草是鹅肠菜、野燕麦、长芒棒头草、无芒稗、酸模叶蓼,6月下旬至7月初为发生第1高峰期,10月中至11月下旬为发生第2高峰期,可通过药剂土壤处理、药剂茎叶喷雾防治和人工拔除控制灯盏花田杂草。

Thirty-two species of common weeds belonging to 16 families were found in the filed in the area of Yuxi City through a 4-year investigation. The main weeds are Malachiurn aquaticurn （L.） Fries, Arena fatua L. , Polypogon monspeliensis （L.） Dest, Echinochloa crusgalli （L.）, Beauv. vat. rnitis （Pursh） Peterm and Polygonum lapathifolium L. The first weed peak occurred from late June to early July, and the second from the middle of October to late November. All sorts of weeds could he controlled through chemical soil treatment, stem and leaf spraying and hand pulling.