Population structure of whitefly (Bemisia tabaci) and the link between vector dynamics and seasonal incidence of yellow mosaic disease in blackgram (Vigna mungo),Entomologia Experimentalis et Applicata

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Population structure of whitefly (Bemisia tabaci) and the link between vector dynamics and seasonal incidence of yellow mosaic disease in blackgram (Vigna mungo)
Entomologia Experimentalis et Applicata ( IF 1.4 ) Pub Date : 2021-02-03 , DOI: 10.1111/eea.13025
Kalyankumar Kamesh Krishnamoorthy ₁ , Varagur Ganesan Malathi ₁ , Perumal Renukadevi ₁ , Subbarayalu Mohan Kumar ₂ , Muthurajan Raveendran ₂ , Narayana Manivannan ₃ , Lingan Rajendran ₁ , Gandhi Karthikeyan ₁

Affiliation

The hemipteran pest silverleaf whitefly, Bemisia tabaci (Gennadius) (Aleyrodidae), is of high economic importance, as it infests a wide range of agricultural and horticultural crops. The pest is regarded as a cryptic species complex. In the present study, the cryptic species composition and viruliferous status of B. tabaci in association with yellow mosaic disease (YMD), caused by Mungbean yellow mosaic virus (MYMV), in blackgram [Vigna mungo (L.) Hepper (Fabaceae)], were assessed over three cropping seasons, viz., Rabi, summer, and Kharif, at three locations in Tamil Nadu, India. This study identified three cryptic B. tabaci species: (1) Asia I, (2) Asia II‐5, and (3) Asia II‐8. Asia II‐8 was the dominant species in all three seasons across locations. Despite the absence of YMD symptoms in many plants, up to 73% of whiteflies sampled from YMD‐resistant and susceptible blackgram cultivars were MYMV‐viruliferous. This suggests that the YMD incidence of blackgram does not directly associate with viruliferous whitefly populations in the field.

中文翻译：

黑粉病（Vigna mungo）的粉虱（Bemisia tabaci）种群结构以及媒介动力学与黄色花叶病的季节性发生之间的联系

阔叶虫银叶粉虱，烟粉虱（Bemisia tabaci（Gennadius）（Aleyrodidae），具有重要的经济意义，因为它侵染了多种农业和园艺作物。该害虫被认为是一种隐性物种复合体。在本研究中，隐种组成和带毒状态烟粉虱与黄色花叶病（YMD），由关联绿豆黄花叶病毒（MYMV），在黑豆[豇豆蒙哥（L.）Hepper（蝶形花科）]在印度泰米尔纳德邦的三个地点对三个作物季节（即拉比，夏季和哈里夫）进行了评估。这项研究确定了三种隐性烟粉虱种类：（1）亚洲I，（2）亚洲II-5，和（3）亚洲II-8。亚洲II-8是所有地区在所有三个季节中的主要物种。尽管在许多植物中没有YMD症状，但从抗YMD和易感黑gram品种采样的粉虱中，高达73％的粉虱是MYMV病毒。这表明黑麦的YMD发生率与田间有毒的粉虱种群没有直接关系。

更新日期：2021-03-22

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