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Dispersal Mechanism Assessment for Panonychus citri (Acari: Tetranychidae) Secondary Outbreaks

文献类型： 外文期刊

作者： Qayyoum, Muhammad Asif 1 ; Song, Zi-Wei 1 ; Zhang, Bao-Xin 1 ; Li, Dun-Song 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Guangdong Prov Key Lab High Technol Plant Protect, Plant Protect Res Inst, 7 Jinying Rd, Guangzhou 510640, Peoples R China

2.Ghazi Univ, Fac Agr Sci, Dept Plant Protect, Dera Ghazi Khan, Punjab, Pakistan

关键词： distribution; citrus red mite; SYP-9625; abamectin; vegetable oil

期刊名称：ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA （ 影响因子：2.099； 五年影响因子：1.884 ）

ISSN： 0013-8746

年卷期： 2021 年 114 卷 4 期

页码：

收录情况： SCI

摘要： Secondary population outbreaks of Panonychus citri (McGregor) (Acari: Tetranychidae) are triggered by synthetic chemical applications (dose and method), which also elicited a change in mites' behavioral responses. This study aimed to understand the dispersal pattern of P. citri and how changes in dispersal behavior may influence secondary pest outbreaks in the field with or without chemicals. We found positive density and time-dependent dispersal within the inoculated leaflet. Dispersion from inoculated leaflets to the last leaflet depends on initial density and time. A significant difference was observed in the composite dispersal index data and preferred midrib region. The minimum dispersal was observed by P. citri in no direct contact with treated surfaces, whereas attraction was observed on treated surfaces (right). All chemicals gave different dispersal and feed disruption responses depending on the treatment application pattern. The maximum number of mites dispersed and avoid surfaces treated with abamectin and vegetable oil, respectively. Vegetable and EnSpray 99 had a positive impact on toxicity, repellency, and irritancy. The fecundity rate of P. citri boosted with a high dose and direct exposure. Panonychus citri colonization as a single individual or gregarious distribution resulted in a rapid fecundity rate, which may explain why citrus orchards were severely damaged and how suddenly a whole citrus plantation can be highly infested. This study concluded that change in treatment application patterns leads to a change in the behavioral responses in P. citri.

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