| 郭晓君, 封云涛, 李 娅, 李光玉, 庾 琴, 张润祥*.3种喷雾助剂对呋虫胺防治苹果黄蚜的增效作用[J].植物保护,2022,48(4):341-345. |
| 3种喷雾助剂对呋虫胺防治苹果黄蚜的增效作用 |
| Synergistic effect of three surfactants on dinotefuran against Aphis citricola |
| 投稿时间：2021-06-21 修订日期：2021-07-15 |
| DOI：10.16688/j.zwbh.2021354 |
| 中文关键词: 喷雾助剂 呋虫胺 毒力测定 润湿性能 苹果黄蚜 |
| 英文关键词:surfactant dinotefuran toxicity test wettability Aphis citricola |
| 基金项目:山西省青年科技研究基金（201901D211569）；国家重点研发计划（2016YFD0200505-01）；山西农业大学学术恢复科研项目（2020xshf10） |
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| 中文摘要: |
| 采用室内毒力测定、助剂润湿铺展性能和田间效果评价研究了3种功能助剂NF-100、GY-T1602和迈道对呋虫胺防治苹果黄蚜的减施增效作用。结果表明, NF-100、GY-T1602和迈道3种助剂均未能提高呋虫胺对苹果黄蚜的毒力; 20%呋虫胺SG 1 110~5 000倍液中分别添加0.1%NF-100、0.5%GY-T1602和0.3%迈道, 表面张力降低6.97~37.44 mN/m、静态接触角降低10.58°~48.67°、黏附张力增加2.32~21.71 mN/m; 20%呋虫胺SG（有效成分用量32 mg/kg）减量处理添加3种助剂药后3~15 d对苹果黄蚜田间防效达90.83%~99.33%, 其中添加NF-100和GY-T1602药后15 d防效均显著高于添加迈道处理及20%呋虫胺SG（40 mg/kg）未减量处理。因此, 喷雾助剂NF-100和GY-T1602可显著改善呋虫胺药液的润湿铺展性能, 减少呋虫胺有效成分用量20%, 对苹果黄蚜仍有较高防效、且持效期延长。 |
| 英文摘要: |
| The synergism between dinotefuran and three surfactants (GY-T1602, NF-100 and Maidao) in controlling Aphis citricola was evaluated. The results showed that the three surfactants failed to increase the toxicity of dinotefuran to A.citricola, but decreased the surface tension and static contact angle by 6.97-37.44 mN/m and 10.58°－48.67°, respectively, and increased the adhesion tension by 2.32-21.71 mN/m, when adding 0.1% NF-100, 0.5% GY-T1602 and 0.3% Maidao to dinotefuran SG 1 110-5 000 times solution. Field tests showed that, when adding the three surfactants, the control effect of dinotefuran 20% SG (dose: 32 mg/kg) was 90.83%-99.33% after 3-15 days, and the effect of NF-100 and GY-T1602 addition was significantly higher than that of addition with Maidao and dinotefuran 20% SG (dose: 40 mg/kg) at 15 d after treatment. Among the three surfactants, NF-100 and GY-T1602 could improve the wettability of dinotefuran solution, and showed an excellent available effect and lasting period against A. citricola, while reducing the dosage of dinotefuran by 20%. |
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