| 蒲小明，王爱臣，林壁润，莫俊锐，邓海滨，张景欣，沈会芳，杨祁云.5%甲维盐水分散粒剂防治鳞翅目害虫田间效果[J].广东农业科学,2021,48(4):106-110 |
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5%甲维盐水分散粒剂防治鳞翅目害虫田间效果 |
| Control Effect of 5% Emamectin Benzoate Water Dispersible Granule Against Lepidoptera Pests in Field |
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| DOI：10.16768/j.issn.1004-874X.2021.04.015 |
| 中文关键词: 甲氨基阿维菌素苯甲酸盐 水分散粒剂 甜菜夜蛾 稻纵卷叶螟 田间防效 |
| 英文关键词: emamectin benzoate water dispersible granule (WG) Spodoptera exigua Cnaphalocrocis medinalis field control effect |
| 基金项目:广东省现代农业产业技术体系创新团队项目（2020KJ112）；广东省烟草科技项目（粤烟科项 201701，201802，201908） |
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| 中文摘要: |
| 【目的】评价 5% 甲氨基阿维菌素苯甲酸盐（甲维盐）水分散粒剂（WG）对鳞翅目害虫的田间防效。
【方法】采用田间小区药效试验和五点取样法调查并计算供试药剂在甘蓝上对甜菜夜蛾和在水稻上对稻纵卷
叶螟的田间防效。【结果】供试药剂 5% 甲维盐 WG 有效成分 7.5、12.0、15.0 g/hm2 喷施后 7 d 对甜菜夜蛾的
防治效果分别为 82.87%、89.37% 和 91.02%，喷施后 14 d 对稻纵卷叶螟的防治效果分别为 90.32%、94.20% 和
98.03%。差异显著性分析结果表明：供试药剂 12.0 g/hm2 处理后 7 d 和 14 d 对甜菜夜蛾的防效显著高于对照药剂
5.7% 甲维盐乳油处理的防效；供试药剂 12.0 g/hm2
处理后 14 d 对稻纵卷叶螟的防效显著高于 5.7% 甲维盐乳油
处理的防效。【结论】5% 甲维盐 WG 对甜菜夜蛾和稻纵卷叶螟具有较好的防治效果，持效期较长，对农作物无
药害，对有益生物无不良影响。 |
| 英文摘要: |
| 【Objective】The study was carried out to evaluate the control effect of 5% emamectin benzoate water
dispersible granule (WG) against Lepidoptera pests in field.【Method】Field plot test and five point sampling method
were adopted to investigate and calculate the field control of 5% emamectin benzoate WG against Spodoptera exigua and
Cnaphalocrocis medinalis.【Result】After spraying for 7 d, the control effects of 5% emamectin benzoate WG (active
ingredient, ai) of 7.5 g/hm2
, 12.0 g/hm2
and 15.0 g/hm2
against S. exigua were 82.87%, 89.37% and 91.02%, respectively.
After spraying for 14 d, the control effects of 5% emamectin benzoate WG (ai) of 7.5 g/hm2
, 12.0 g/hm2
and 15.0 g/hm2
against
C. medinalis were 90.32%, 94.20% and 98.03%, respectively. Significant difference analysis results indicated that the 7 d
and 14 d control effects of the 5% emamectin benzoate WG of 12.0 g/hm2
treatment against S. exigua were higher than those of 5.7% emamectin benzoate emulsifiable concentrate (EC) treatment. The 14 d control effect of the 5% emamectin benzoate WG
of 12.0 g/hm2
treatment against C. medinalis was higher than that of 5.7% emamectin benzoate emulsifiable concentrate (EC) .
【Conclusion】The 5% emamectin benzoate WG showed good field control against S. exigua and C. medinalis. Moreover, it
had a long duration, no harm to crops and no adverse effects on beneficial organisms. |
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