Study on the Control Effectiveness of Different Pesticides on Tobacco Root-Knot Nematode Disease
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摘要: 烟草根结线虫病在我国西南烟区普遍发生,严重影响烟草的产量和品质.为减轻烟草根结线虫病的危害,本研究通过田间小区试验探究不同药剂、材料对烟草根结线虫病的防效以及对烟草生长的影响.结果表明,0.5%阿维菌素颗粒剂对烟草根结线虫病的整体防效最高,为73.95%,其次是牡蛎粉(60.94%);0.5%阿维菌素颗粒剂处理区烟株农艺性状均显著优于空白对照区,牡蛎粉和复合调酸材料处理区烟株长势明显优于空白对照.综上所述,0.5%阿维菌素颗粒剂对烟草根结线虫病具有很好的防效,土壤调理剂牡蛎粉和复合调酸材料具有较好的应用潜力.Abstract: Tobacco root-knot nematode disease is widespread in the tobacco-growing areas of southwestern China and seriously affects the yield and quality of tobacco. In order to alleviate the harm imposed by this disease on tobacco plants, a field plot trial was carried out to investigate the control effectiveness of different agents and materials and their influence on tobacco growth. The results showed that 0.5% abamectin granules gave the highest control effectiveness (73.95%), followed by oyster meal (60.94%); that the agronomic characters of the tobacco plants treated with 0.5% abamectin granules were obviously better than those of the control plants; and that the plants treated with oyster meal and compound acid-regulating materials grew more vigorously than the control plants. In conclusion, 0.5% abamectin granules have a good control effectiveness on tobacco root-knot nematodes, and oyster powder and compound acid-regulating materials have promising potentials of application.
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Key words:
- tobacco /
- root knot nematode disease /
- soil regulating material /
- control effectiveness .
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