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2015年于河南安阳黄萎病人工病圃和新疆黄萎病重病田研究了棉萎克对棉花黄萎病的防治效果。结果表明:在人工病圃黄萎病发生的中期,连续喷施600倍棉萎克2次后,处理区的病情指数下降14.3%,标记病株的平均病级由4.0下降到2.8;而对照区病情指数增长92.6%,标记病株的平均病级由4.2上升到5.9,对黄萎病的防治效果为55.4%。在新疆阿拉尔和石河子重病田黄萎病发生初期,连续喷施棉萎克3次后,对黄萎病的防治效果分别为66.1%和73.1%。本研究表明,在棉花黄萎病发生初期喷施棉萎克对棉花黄萎病具有较好的防治效果。
In 2015, the control effect of cotton wilt on cotton Verticillium wilt was studied in artificial nursery of Verticillium wilt disease in Anyang, Henan and severe wilt disease in Xinjiang. The results showed that the disease index of treated area decreased 14.3% and the average disease grade of diseased area decreased from 4.0 to 2.8 after continuous spraying 600 times of cotton wilt twice in the mid-term of artificial disease-causing Verticillium wilt. The index of disease area increased by 92.6%, the average disease grade of marker plants increased from 4.2 to 5.9, and the control effect on Verticillium wilt was 55.4%. In the early stage of the occurrence of Verticillium wilt disease in Ailaer, Xinjiang and Shihezi severe diseases, the control effects of Verticillium wilt were 66.1% and 73.1% respectively after being sprayed 3 times in a row. This study showed that spraying Verticillium wilt on the early stage of cotton Verticillium wilt has a good control effect on Verticillium dahliae.