Article
Biotechnology & Applied Microbiology
Cheng Song Zhou, Huan Huan Lv, Xiao Hu Guo, Qian Cao, Rui Xingyue Zhang, De Ying Ma
Summary: The study on resistance against neonicotinoids in whiteflies revealed differential gene expression profiles, mainly involving cuticle protein and P450 genes, in the selected resistant whitefly strains, providing reference for further research on resistance and cross-resistance against neonicotinoids in B. tabaci.
Article
Biochemistry & Molecular Biology
Qinghe Zhang, Fengbo Yang, Hong Tong, Yuan Hu, Xinyi Zhang, Tian Tian, Youjun Zhang, Qi Su
Summary: The ingestion of plant flavonoids enhances the tolerance of Bemisia tabaci to certain insecticides by increasing the activity of cytochrome P450 enzymes, which disrupts the mechanism of the insecticides.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2021)
Article
Entomology
Inana X. Schutze, Steve E. Naranjo, Pedro T. Yamamoto
Summary: A study conducted in soybean fields in Brazil found that temperature has an impact on the population growth of B. tabaci and crop yield. Higher temperatures promote faster growth and an additional generation of the pest, but have a negative effect on crop yield and quality.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Xuegao Wei, Jinyu Hu, Jing Yang, Cheng Yin, Tianhua Du, Mingjiao Huang, Buli Fu, Peipan Gong, Jinjin Liang, Shaonan Liu, Hu Xue, Chao He, Yao Ji, He Du, Rong Zhang, Chao Wang, Junkai Li, Xin Yang, Youjun Zhang
Summary: The study found that a differentially expressed gene CYP6DB3 is involved in the resistance of B. tabaci to neonicotinoid insecticides. The expression of CYP6DB3 was up-regulated in resistant strains compared to susceptible strains. Knocking down CYP6DB3 expression increased the sensitivity of B. tabaci to thiamethoxam and imidacloprid, while overexpression of CYP6DB3 gene reduced the toxicity of these insecticides. Additionally, CYP6DB3 was found to metabolize imidacloprid. This research provides important insights into the role of cytochrome P450s in insecticide resistance and the development of new pest resistance management strategies.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2023)
Article
Entomology
Bruno Rossitto De Marchi, Hugh Smith, William Turechek, David Riley
Summary: The whitefly, Bemisia tabaci MEAM1 Gennadius, causes serious losses to Florida vegetable and ornamental production. Different insecticides showed varying efficacy levels on different populations of the whitefly, with imidacloprid performing the poorest and dinotefuran and flupyradifurone being the most effective.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Tianhua Du, Buli Fu, Xuegao Wei, Cheng Yin, Jing Yang, Mingjiao Huang, Jinjin Liang, Peipan Gong, Shaonan Liu, Hu Xue, Jinyu Hu, Yongchao Diao, Lianyou Gui, Xin Yang, Youjun Zhang
Summary: The study identified and cloned two UGT genes, UGT352A4 and UGT352A5, which were found to be over-expressed in thiamethoxam-resistant B. tabaci. The results suggest that UGT352A5 may play a significant role in conferring thiamethoxam resistance in the insect.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Endocrinology & Metabolism
Hao Yu, Bin Yang, Liuhao Wang, Sijia Wang, Kui Wang, Qisheng Song, Hongwei Zhang
Summary: This study investigated the role of neuropeptide hormone bursicon in the ovary development and reproduction of the hemipteran insect, whitefly. The results revealed that bursicon regulates vitellogenesis and reproduction by coordinating with the juvenile hormone signaling pathway.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Entomology
Baiming Liu, Evan L. Preisser, Xiaoguo Jiao, Weihong Xu, Youjun Zhang
Summary: The study assessed the impact of flupyradifurone on the feeding behavior of the Mediterranean population of whiteflies on tomatoes, as well as its effect on plant virus load and insecticide efficacy. Results showed that flupyradifurone significantly altered whitefly feeding behavior, reduced plant virus load, and effectively decreased virus transmission.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Horticulture
Yating Liu, Jinxi Xie, Wenlu Wang, Yanyuan Lei, Xuguo Zhou, Youjun Zhang, Wen Xie
Summary: The fruitless gene plays a key role in controlling sexual behavior in insects. In this study, two fru transcripts were identified and characterized in Bemisia tabaci. The results showed significant differences in the expression of fru-a and fru-b between females and males, which were also regulated by transcription factors.
Article
Agronomy
Yiyun Wei, Fang Guan, Ran Wang, Cheng Qu, Chen Luo
Summary: Amplicon sequencing and Sanger sequencing showed similar frequencies of L925I and T929V mutations in Bemisia tabaci, with minor variations among different populations in China. The total frequency of these mutations exceeded 0.9688 in all populations, indicating widespread resistance to pyrethroid insecticides. Additionally, a combining mutation of L925I and T929V was identified in all populations, albeit with a low frequency.
PEST MANAGEMENT SCIENCE
(2021)
Article
Entomology
Pedro P. S. Barros, Inana X. Schutze, Fernando H. Iost Filho, Pedro T. Yamamoto, Peterson R. Fiorio, Jose A. M. Dematte
Summary: This study investigated the differentiation of soybean leaves infested with Bemisia tabaci using hyperspectral sensing. The results showed that hyperspectral sensing could effectively discriminate different levels of infestation and help improve monitoring of whitefly populations in soybean fields.
Article
Agriculture, Multidisciplinary
Hu Xue, Buli Fu, Mingjiao Huang, Chao He, Jinjin Liang, Jing Yang, Xuegao Wei, Shaonan Liu, Tianhua Du, Yao Ji, Cheng Yin, Peipan Gong, JinYu Hu, He Du, Rong Zhang, Chao Wang, Jahangir Khajehali, Qi Su, Xin Yang, Youjun Zhang
Summary: In this study, it was found that the increased resistance of whitefly to imidacloprid is associated with the overexpression of CYP6DW3 and CYP6DW5v1 genes, and knockdown of these genes weakened the resistance. Moreover, it was shown that the CYP6DW3 protein can metabolize 14.11% of imidacloprid in vitro. These findings enhance our understanding of insect resistance mechanisms and contribute to the development of integrated pest management frameworks.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Entomology
Sabrina Bertin, Giuseppe Parrella, Mauro Nannini, Giorgia Guercio, Elisa Troiano, Laura Tomassoli
Summary: Bemisia tabaci is a key pest of horticultural, fibre and ornamental crops worldwide, primarily as a vector of plant viruses. In Italy, the whitefly has been established since the 1980s-1990s in southern regions as well as in Sicily and Sardinia, with recent reports indicating its presence even at more northern latitudes in central Italy, where the Mediterranean species prevails. The prevalence of the MED species is concerning due to its ability to develop insecticide resistances, posing a threat to agricultural productivity in the country.
Article
Entomology
Alessia Farina, Giuseppe Eros Massimino Cocuzza, Pompeo Suma, Carmelo Rapisarda
Summary: To control the invasive whitefly pest and reduce its damage to vegetable crops and ornamental plants, the release of natural enemies has become an important method of biological control. This study evaluated the impact of the mirid predator on the morphology and physiology of eggplants in the presence of whitefly infestations. The results showed that the presence of the predator mitigates the damage caused by whitefly infestations and helps to understand the multitrophic relationships between plants, pests, and natural enemies.
Article
Entomology
Marc Sporleder, Heidy Gamarra, Pablo Carhuapoma, Luis Goicochea, Juergen Kroschel, Jan Kreuze
Summary: The sweetpotato whitefly, Bemisia tabaci MEAM1, is a significant insect pest that affects a wide range of plants and transmits various viruses. Understanding its population growth potential with respect to temperature is crucial for predicting its range and designing effective pest management strategies.
ENVIRONMENTAL ENTOMOLOGY
(2023)