| 注干用10%甲氨基阿维菌素苯甲酸盐可溶粒剂的研制及对松材线虫病的防治效果 |
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投稿时间：2019-03-11
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| 引用本文：张欣伟,韩群琦,汪天娜,等.注干用10%甲氨基阿维菌素苯甲酸盐可溶粒剂的研制及对松材线虫病的防治效果[J].农药学学报,2019,21(4):538-544. |
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| 基金项目:国家林业局948项目（2015-4-40） |
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| 中文摘要:为有效防治松材线虫病，研制了注干用10%甲氨基阿维菌素苯甲酸盐（以下简称甲维盐）可溶粒剂，并通过在马尾松树干基部钻孔施药，考察了其对松材线虫病的防治效果。以苯甲酸钠、单水乳糖、可溶性淀粉和羧甲基纤维素为水溶性载体，采用混料均匀试验设计及偏最小二乘回归分析法对水溶性载体的配方进行了优化。将水溶性载体与溶于正丁醇和乳化剂OP-10的甲维盐（油相）在不同时间下混合并造粒，通过对其性能指标的追踪检测得出粒剂最佳配比和混合时间。结果表明：10%甲维盐可溶粒剂的最佳配比（质量分数）为：甲维盐10.0%（折纯），乳化剂OP-10 6.7%，正丁醇12.0%，苯甲酸钠39.0%，单水乳糖20.5%，水溶性淀粉3.0%和羧甲基纤维素4.5%；机械混合时间为10 min，粒剂外观为乳白色圆柱体，各项性能指标合格。注干施药结果表明：在浙江临安东湖村松材线虫病疫区，注干110棵马尾松，1 a后马尾松死亡率为0，对照区为6.1%；在福建泉州仙公山疫区，注干230棵马尾松，1 a后马尾松死亡率为1.7%，对照区10.8%。结果表明，所研制的10%甲维盐可溶粒剂可在松脂分泌旺盛的松树上注干施药，制剂造粒工艺简单，无包装物污染，对松材线虫病防治效果显著。 |
| 中文关键词:注干施药 甲氨基阿维菌素苯甲酸盐 可溶粒剂 松材线虫病 传导性 防治效果 |
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| Preparation of 10% emamectin benzoate soluble granule for trunk injection and its control efficacy on pine wilt disease |
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| Abstract:In order to prevent and control pine wilt disease, 10% emamectin benzoate soluble granule was prepared for trunk injection. Its control efficacy against pine wood nematode disease was evaluated after trunk injection. Sodium benzoate, lactose monohydrate, soluble starch and CMC were tested as the water-soluble carrier. The formulation of the water-soluble carrier was optimized using the uniform design of experiments with mixtures and partial least squares regression. The emamectin benzoate (oil phase) was dissolved in n-butanol and emulsifier OP-10, and mixed with water-soluble carrier with different mixing time. And then the optimal formulation and mixing time was obtained by tracking and detecting of the indicators. The optimum formulation of emamectin benzoate 10% soluble granule was composed of emamectin benzoate 14.3% (pure 10.0%), OP-10 5.7%, n-butanol 12%, sodium benzoate 39.0%, lactose monohydrate 20.5%, water-solubility starch 3.0% and CMC 4.5%. After 10 min mechanical kneading, the appearance of the granule was the cylinder in milk white. And all the indicators were up to the standard. The field experiments showed that the granule could completely dissolve in water and effectively conduct in P. massoniana after the trunk injection. In the pine wood nematode disease area in Donghu Village, 110 pines were injected. The mortality of P. massoniana was 0 after 1 year. And the mortality of P. massoniana in the control group was 6.1%. In the Xian' gong Mountain, 230 pines were injected. The mortality of P. massoniana was 1.7%, and the mortality of P. massoniana in the control group was 10.8%. The soluble granule can be used during the whole pine resin secretion period. And it features simple and safe production procedur, no packaging pollution and significant control effect. |
| Key words:trunk injection emamectin benzoate soluble granule pine wilt disease conduction control effect |
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