氨基寡糖素对番茄主要病害的防治作用  

Control Effect of Chitosan-oligosacchrides on Main Diseases of Tomato in Shaanxi

作　　者：苏小记 王亚红 贾丽娜[2] 刘万锋[2] 

机构地区：[1]陕西省植物保护总站,陕西西安710003 [2]陕西省渭南市农技中心,陕西渭南714000

出　　处：《西北农业学报》2004年第2期79-82,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：用2.0%氨基寡糖素防治番茄病毒病、晚疫病和灰霉病,结果表明,对番茄病毒病和晚疫病的控制作用明显,防治效果分别为69.3%～81.6%和66.20%～81.76%,最佳使用浓度为300～500倍液;是番茄病毒病和晚疫病有效的生物防治措施。但对番茄灰霉病的防治效果不佳,防效仅为32%。2.0% Chitosan-oligosacchrides was used to control 3 kinds of tomato diseases, tomato late blight(Phytophthora infestans de Bary), mosaic virus(CMV and TMV) and gray mold(Botrytis cinerea Pers)in the field. The results showed that control effect of 2.0% Chitosan-oligosacchrides on tomato mosaic virus and late blight was very obvious, control results were 69.30%～81.60% and 66.20～(81.76%) respectively, its optimum diluting multiple was 300～500-fold. Therefore, 2.0% Chitosan-oligosacchrides is a effective bio-fungicide controlling the mosaic virus and late blight. But its control result to tomato gray mold in the field , only 32%, is not very well.

关 键 词：氨基寡糖素 番茄 病毒病 晚疫病 灰霉病 药效试验 

分 类 号：S436.412.1[农业科学—农业昆虫与害虫防治]