Article
Entomology
Yuanyuan Zhang, Gang Xu, Yu Jiang, Chao Ma, Guoqing Yang
Summary: This study investigated the potential effects of sublethal concentrations of imidacloprid on the small brown planthopper (SBPH) and found that it could increase the fecundity of SBPH. Additionally, the impact of insecticides on the transmission of plant viruses by insects should be considered.
Article
Virology
Gang Lu, Xiao-Di Zhang, Zhong-Tian Xu, Zhuang-Xin Ye, Yan Zhang, Jian-Ping Chen, Chuan-Xi Zhang, Jun-Min Li
Summary: A novel reovirus-like virus named Laodelphax striatellus reovirus (LSRV) was identified in the small brown planthopper, L. striatellus. LSRV was widely distributed in various tissues of the planthopper, with the highest expression in adult heads. However, LSRV was unable to replicate in rice plants. Host antiviral RNA interference pathway was found to be involved in LSRV infection. LSRV may be considered as a new species of the genus Fijivirus in the order Reovirales.
Article
Agronomy
Jiao Shang, Yong-Sheng Yao, Xiang-Zhen Zhu, Li Wang, Dong-Yang Li, Kai-Xin Zhang, Xue-Ke Gao, Chang-Cai Wu, Lin Niu, Ji-Chao Ji, Jun-Yu Luo, Jin-Jie Cui
Summary: This study investigated the sublethal and transgenerational effects of sulfoxaflor on adult Aphis gossypii, showing that sulfoxaflor significantly affected the life table parameters of the aphid population and altered the abundance and composition of symbiotic bacteria across three generations. The findings shed light on the interactions among pesticide resistance, aphids, and symbionts, aiding in better management of A. gossypii resurgence.
PEST MANAGEMENT SCIENCE
(2021)
Article
Agronomy
Xueting Wang, Xiang Liu, Chang Liu, Shengfang Wen, Yannan Xue, Yan Jin, Guofu Zhang, Xiaoming Xia
Summary: This study found that exposure to sublethal concentrations of cyantraniliprole led to reduced survival rate and hatchability of the small brown planthopper (SBPH). It also prolonged the nymphal duration and shortened the adult preoviposition period. The increase in detoxification enzyme activity may contribute to the development of insecticide resistance. This research provides valuable insights for managing resistant SBPH populations.
Article
Entomology
Yubiao Cai, Tao Dou, Futao Gao, Guanghua Wang, Yachang Dong, Nan Song, Shiheng An, Xinming Yin, Xiangyang Liu, Yingdang Ren
Summary: This study evaluated the sublethal effects of thiamethoxam on the small brown planthopper and found that sublethal concentrations of thiamethoxam can inhibit population growth and enhance detoxification enzyme activities.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Environmental Sciences
Jiahuan Li, Liuwei Zhao, Suzhen Qi, Wenting Zhao, Xiaofeng Xue, Liming Wu, Shaokang Huang
Summary: Sulfoxaflor, a novel sulfoximine insecticide, has been found to have moderate toxicity to adult bees and can cause significant death and growth failure in larvae. Additionally, at residue levels, it induces significant changes in antioxidative, lipid peroxidation, detoxification, and signal transduction-related enzymes or products in both larvae and adult honey bees. Further studies are needed to investigate the risks and in-depth mechanisms of sulfoxaflor to bees in field settings.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agriculture, Multidisciplinary
Wenxuan Huang, Yan Huo, Shaochen Yang, Mingjia Liu, Han Li, Man Zhang
Summary: In this paper, an improved YOLOv5s algorithm was proposed to implement the recognition and counting system of Laodelphax striatellus (SBPH). The model was enhanced by adding channel attention and spatial attention, as well as incorporating the Convolutional Block Attention Module (CBAM) and Adaptively Spatial Feature Fusion (ASFF). Experimental results showed that the improved model had a similar volume to YOLOv5s, but achieved approximately 4% higher mAP than YOLOv5s and 2% higher mAP than YOLOv5x. Additionally, an APP was developed using Android Studio to enable mobile image recognition and counting.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Agronomy
Shuirong Zhang, Fuchuan Gu, Ying Du, Xuyang Li, Changwei Gong, Jian Pu, Xuemei Liu, Xuegui Wang
Summary: Continuous selection of Laodelphax striatellus on triflumezopyrim resulted in the development of resistance, which did not lead to cross-resistance to other insecticides. The up-regulation of multiple P450 genes may play a role in mediating triflumezopyrim resistance in L. striatellus.
PEST MANAGEMENT SCIENCE
(2022)
Article
Entomology
Jie Chen, Meng-Ke Wang, Qi-Xian Xie, Xiao-Li Bing, Tong-Pu Li, Xiao-Yue Hong
Summary: The endosymbiont Wolbachia manipulates host reproduction through various strategies, including cytoplasmic incompatibility (CI). This study explored the potential rescue mechanism of CI in the small brown planthopper Laodelphax striatellus infected with Wolbachia. Comparative transcriptome analysis revealed differentially expressed genes, and RNA interference of specific Wolbachia-upregulated genes reduced egg reproduction. The upregulated gene NDUFA8 was associated with the rescue phenotype, suggesting it as a potential pest control target.
Article
Entomology
Amir Zaman Shah, Chao Ma, Yuanyuan Zhang, Qiuxin Zhang, Gang Xu, Guoqing Yang
Summary: This study demonstrates that the use of decoyinine as a seed treatment significantly reduces the fecundity of the small brown planthopper (SBPH) and improves rice resistance. Decoyinine enhances rice defense against SBPH by stimulating plant defensive responses, making it a potential environmentally friendly alternative to chemical pest control.
Article
Environmental Sciences
Xueke Gao, Kaixin Zhang, Likang Zhao, Xiangzhen Zhu, Li Wang, Dongyang Li, Jichao Ji, Lin Niu, Junyu Luo, Jinjie Cui
Summary: Integrated pest management aims to combine biological and chemical methods to control pests. Neonicotinoids have been found to have a negative impact on biological control, while the impact of sulfoxaflor on natural predators is not well understood. This study investigates the effects of sublethal doses of sulfoxaflor on a parasitoid natural enemy, Binodoxys communis. The results show that sublethal doses of sulfoxaflor significantly reduce survival rate, adult lifespan, development duration, and parasitism rate of B. communis. Transcriptome analysis reveals that the expression of genes related to detoxification systems and energy metabolism is altered by sublethal sulfoxaflor exposure. Therefore, optimizing pesticide applications in integrated pest management is crucial for the safety and survival of natural pest parasitoids.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Agronomy
Shengfang Wen, Yannan Xue, Ruoshi Du, Chang Liu, Xueting Wang, Youwei Wang, Chao Liu, Sheng Wang, Jinhua Wang, Xiaoming Xia
Summary: The study found that sublethal doses of TFM significantly affected the life table parameters, oviposition, and fecundity of SBPH, as well as the emergence rate of adults. In addition, insects treated with sublethal doses of TFM had longer developmental durations and adult life spans.
Article
Agronomy
Shao-Wu Yang, Ming-Jiang Li, Hao-Pei Shang, Yu-Han Liu, Xing-Xing Li, Zheng-Xiong Jiang, Guo-Hua Chen, Xiao-Ming Zhang
Summary: The study found that exposure to sublethal concentrations of spirotetramat had a significant impact on the ability of the parasitoid Encarsia formosa to locate and handle hosts, with a more pronounced effect at LC50 concentration and better performance at LC10 concentration.
PEST MANAGEMENT SCIENCE
(2022)
Article
Entomology
Yannan Xue, Chang Liu, Dongmei Liu, Wenjuan Ding, Zhaoge Li, Junli Cao, Xiaoming Xia
Summary: This study investigated the sensitivity of Laodelphax striatellus populations in different areas of Shandong, China to insecticides. The results showed that while some populations developed resistance to certain insecticides, all populations were sensitive to clothianidin, nitenpyram, and triflumezopyrim. The study also explored the biochemical characteristics and gene expression of the populations. These findings provide valuable information for the management strategies of L. striatellus in the field.
Article
Biochemistry & Molecular Biology
Yao Li, Yunye Zhang, Yin Xiang, Danyu Chen, Jia Hu, Fang Liu
Summary: Tissue-specific changes in gene expression profiles were greater than sex-specific changes in response to RSV infection in small brown planthoppers. Olfactory related genes in viruliferous antennae and legs showed significant differences compared to nonviruliferous ones, while differences in heads were minimal. The findings provide insights into controlling plant virus transmission and pest management.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)