豚草(Ambrosia artemisiifolia L.)属菊科,生长迅速,竞争力强,侵入农田后能很快形成优势群落,是世界公认的恶性杂草;更重要是豚草花粉可引起人类变态反应症,患者出现眼、耳、鼻奇痒、头痛、胸闷、咳嗽、哮喘,并可引起并发性肺气肿、肺心病。 现在,豚草已在我国东北、华东和华中的15个省市和地区大量发生,形成沈阳-铁岭-丹东,南京,武汉及南昌-九江等4个发 Ambrosia (Ambrosia artemisiifolia L.) belongs to the Asteraceae family. It grows rapidly and has strong competition ability. It quickly forms the dominant community after invaded farmland and is a world-recognized malignant weed. More importantly, ragweed pollen can cause human allergy, Patients with eyes, ears, nasal itching, headache, chest tightness, cough, asthma, and can cause concomitant emphysema, pulmonary heart disease. Ragweed has now taken place in large numbers in 15 provinces and regions in northeastern China, eastern China and central China, and has formed four major systems: Shenyang-Tieling-Dandong, Nanjing, Wuhan and Nanchang-Jiujiang