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Field evaluation of infestation levels of the sugarcane mealybug Saccharicoccus sacchari (Cockerell) on different sugarcane varieties in Guangxi Province, China: Preliminary results

文献类型： 外文期刊

作者： Qin, Zhen-Qiang 1 ; Luo, Ya-Wei 1 ; Li, De-Wei 1 ; Song, Xiu-Peng 1 ; Wei, Jin-Ju 1 ; Wei, Chun-Yan 1 ; Nikpay, Amin 2 ;

作者机构： 1.Guangxi Acad Agr Sci, Sugarcane Res Inst, Key Lab Sugarcane Biotechnol & Genet Improvement, Minist Agr & Rural Affairs,Guangxi Key Lab Sugarc, Nanning 530007, Peoples R China

2.Sugarcane & Prod Dev Co, Salman Farsi Agroind, Dept Plant Protect, Ahwaz, Iran

3.UPRAIDA, CIRAD, F-34398 Montpellier, France

4.Univ Montpellier, CIRAD, AIDA, Montpellier, France

关键词： Saccharicoccus sacchari; sugarcane; infestation level; Guangxi Province; China

期刊名称：INTERNATIONAL SUGAR JOURNAL （ 影响因子：0.077； 五年影响因子：0.125 ）

ISSN： 0020-8841

年卷期： 2020 年 122 卷 1461 期

页码：

收录情况： SCI

摘要： The pink sugarcane mealybug, Saccharicoccus sacchari is one of the important pests of sugarcane in China. Infestation levels of S. sacchari on 8 sugarcane varieties were investigated at sugarcane regional trial stations (Nanning City (Dingdang), Baise City, Chongzuo City (two sites, Fusui county and Longzhou county), Laibin City, Liuzhou City and Hechi City) in 2018-2019 in Guangxi Province, China. Damage levels were assessed by counting the number of mealybugs per stalk and calculating the percentage of stalk damage. Findings indicated that there were significant differences in: i) population density and damage by S. sacchari on newly planted sugarcane varieties at Laibin in 2018; ii) population density on ratoon crops at Laibin and Chongzuo (Longzhou) in 2019; and iii) plant damage on ratoon crops at Laibin and Nanning (Dingdang) in 2019. However, no significant differences were found on the varieties at other sugarcane regional experiment stations in 2018 2019. Findings suggest that the sugarcane varieties of GT 11-2119 and GT 11-2320 were susceptible to S. sacchari while GT 11-1042 and ROC 22 were less so. Host plant resistance is an important component to consider in any breeding programme. Not only will these data on the infestation levels help the sugar industry in planting resistant varieties but also selecting appropriate cultivars in areas prone to infestation of mealybugs.

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