| 蜡蚧轮枝菌可分散油悬浮剂对枸杞棉蚜取食行为的影响 |
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| 引用本文： | 郭佳茹,蒲占悦,柴军发,王小龙,洪 波,王 芳,贾彦霞.蜡蚧轮枝菌可分散油悬浮剂对枸杞棉蚜取食行为的影响[J].植物保护,2023,49(6):139-146. |
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| 作者姓名： | 郭佳茹 蒲占悦 柴军发 王小龙 洪 波 王 芳 贾彦霞 |
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| 作者单位： | 1. 宁夏大学农学院, 银川 750021; 2. 宁夏农林科学院植物保护研究所, 银川 750002 |
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| 基金项目： | 宁夏回族自治区农业科技自主创新资金“十四五”农业高质量发展和生态保护科技创新示范项目（NGSB-2021-10-04） |
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| 摘 要： | 为探究枸杞棉蚜经2种蜡蚧轮枝菌可分散油悬浮剂处理后的取食行为差异，本试验利用浸渍法对棉蚜进行室内毒力测定，并利用刺吸电位图谱技术对棉蚜在枸杞植株上的取食行为进行测定。结果表明，棉蚜的死亡率随着制剂浓度和处理时间的增加而增加，处理后棉蚜的死亡率逐渐增加，第2天2种制剂最高浓度的校正死亡率达到40%以上。5 d后2种制剂的致死作用达到最强，其最高浓度处理下的校正死亡率分别达到96.97%和95.97%。2种蜡蚧轮枝菌可分散油悬浮剂3个浓度处理的棉蚜在总记录时间为8 h内均产生7种波形，分别是非刺探波np波、路径波C波、电位下降波pd波、韧皮部分泌唾液波E1波、韧皮部被动取食波E2波、机械阻碍波F波、木质部主动取食波G波。1#制剂np波和C波随浓度的增加而增加，其余波随浓度的增加而降低，2#制剂np波和C波随浓度的增加先增加后降低，其余波随浓度的增加先降低后增加。棉蚜成虫拒食时间由长至短依次为2#制剂1×106 cfu/mL浓度、1#制剂4×106 cfu/mL、2#制剂4×106 cfu/mL、1#制剂1×106<...
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| 关 键 词： | 棉蚜 蜡蚧轮枝菌 可分散油悬浮剂 取食行为 刺吸电位图谱技术 |
| 收稿时间： | 2023/1/12 0:00:00 |
| 修稿时间： | 2023/2/6 0:00:00 |
Effect of dispersible oil suspension agent of Akanthomyces lecanii on feeding behavior of Aphis gossypii |
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| GUO Jiaru,PU Zhanyue,CHAI Junf,WANG Xiaolong,HONG Bo,WANG Fang,JIA Yanxia.Effect of dispersible oil suspension agent of Akanthomyces lecanii on feeding behavior of Aphis gossypii[J].Plant Protection,2023,49(6):139-146. |
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| Authors: | GUO Jiaru PU Zhanyue CHAI Junf WANG Xiaolong HONG Bo WANG Fang JIA Yanxia |
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| Institution: | 1. School of Agriculture, Ningxia University, Yinchuan 750021, China; 2. Institute of Plant Protection, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China |
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| Abstract: | To investigate the differences in feeding behavior of Aphis gossypii on Lycium barbarum after treatment by two dispersible oil suspension agents of Akanthomyces lecanii, indoor virulence of the agents was determined using the impregnation method and the feeding behavior of A.gossypii on L.barbarum plants was determined using the electrical penetration graph. The results showed that mortality of A.gossypii increased with the increase of concentration of the formulation and the time of treatment, and the mortality of A.gossypii after treatment increased gradually, with the corrected mortality rate reaching more than 40% at the highest concentration of the two formulations on the 2nd day. The lethal effect of the two formulations was the strongest 5 d after treatment, with corrected mortality of 96.97% and 95.97% at their highest concentration, respectively. A.gossypii treated with three concentrations of the two dispersible oil suspension agents of A.lecanii produced seven waveforms within a total recording time of 8 h, including non-puncturing waveform np, path waveform C, potential drop waveform pd, phloem secretory saliva waveform E1, phloem passive feeding waveform E2, mechanical hindrance waveform F, and xylem active feeding waveform G. The np and C waveforms of 1# formulation increased with the increase of concentration, and the rest of the waveforms decreased with the increase of concentration, while the np and C waveforms of 2# formulation increased and then decreased with the increase of concentration, and the rest of the waveforms decreased and then increased with the increase of concentration. The length of adult A.gossypii anti feeding time was in the order of 2# formulation at 1 × 106 cfu/mL, 1# formulation at 4 × 106 cfu/mL, 2# formulation at 4 × 106 cfu/mL, 1# formulation at 1 × 106 cfu/mL, 2# formulation at 2.5 × 105 cfu/mL and 1# formulation at 2.5 × 105 cfu/mL. 2# formulation at 1 × 106 cfu/mL had the strongest feeding rejection effect on A.gossypii. Two dispersible oil suspensions agents of A.lecanii had effects on the feeding behavior of A.gossypii on L.barbarum, among which 2# formulation had the greatest effect on A.gossypii and could be used as an effective fungicide for prevention and control of A.gossypii. |
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| Keywords: | Aphis gossypii Akanthomyces lecanii oil dispersion feeding behavior electrical penetration graph |
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