| 赖 多1
，曹 旭 2，邵雪花 1
，肖维强 1
，刘传和 1
，贺 涵 1
，刘 秀 2，匡石滋 1.印楝素对柑橘木虱的毒力测定及田间防效试验[J].广东农业科学,2019,46(12):89-94 |
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印楝素对柑橘木虱的毒力测定及田间防效试验 |
| Determination of Indoor Toxicity of Azadirachtin to Diaphorina citri and its Control Effect in Field |
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| DOI：10.16768/j.issn.1004-874X.2019.12.012 |
| 中文关键词: 印楝素 植物源农药 柑橘木虱 抑制生长发育 毒力 防治效果 |
| 英文关键词: Diaphorina citri botanical pesticide azadirachtin growth inhibition toxicity control effect |
| 基金项目:国家自然科学基金（31601699）；国家重点研发计划项目（2017YFD0202000）；广东省重点研发计划项目（2019B020217003）；广东省科技创新战略专项资金（高水平农科院建设）（R2017PY-QF001） |
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| 摘要点击次数: 1928 |
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| 中文摘要: |
| 【目的】评价印楝素对柑橘木虱（Diaphorina citri）的室内毒力与田间防效，为柑橘木虱的生物防
治提供科学依据。【方法】采用浸叶法和喷雾法测定印楝素对柑橘木虱三龄若虫和成虫的室内毒力及田间防治
效果。【结果】在室内印楝素处理柑橘木虱三龄若虫 1、3、7 d 后 LC50 值分别为 2.77、1.14、0.61 mg/L；而 16.0
mg/L 印楝素处理木虱成虫 4 d 后死亡率仅为 13.33%，与清水对照无显著差异。0.3% 印楝素乳油 800 倍液喷雾处
理后 1、3、7 d 对柑橘木虱田间防效分别为 14.35%、49.56% 和 86.4%。【结论】印楝素对柑橘木虱若虫具有良
好的毒杀活性，药后 7 d 防治效果较好，但对成虫没有毒杀活性；印楝素在柑橘木虱若虫防治上具有良好的应用
前景。 |
| 英文摘要: |
| 【Objective】The research was to evaluate the indoor toxicity and field control effect of azadirachtin to
Diaphorina citri and provide a scientific basis for the biocontrol of D. citri. 【Method】The indoor toxicity and field control
effects of azadirachtin on the 3rd instar nymphs and adults of D. citri were determined by leaf soaking method and spraying
method. 【Result】Under indoor condition, the LC50 values of 3rd instar nymphs were 2.77, 1.14 and 0.61 mg/L, respectively
after being treated with azadirachtin for 1 d, 3 d and 7 d. However, the mortality rate of adult D. citri was only 13.33% after
being treated with 16.0 mg/L azadiracthin for 4d, which had no significant difference with the water control. The field control
effects on D. citri nymphs were 14.35%, 49.56% and 86.4%, respectively after sprayed with 800 times diluent of 0.3%
azadirachtin EC for 1 d, 3 d and 7 d.【Conclusion】Azadirachtin had good toxicity activity against D. citri nymphs and
showed the best field control effect on D. citri nymphs after being treated for seven days, while it had no toxicity activity toadults. Azadirachtin has a favorable application prospect in the control of D. citri nymphs. |
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