Article
Agronomy
Matthew Bickerton, Julia Gonzalez, Andrea Egizi, Alvaro Toledo
Summary: The study evaluated the susceptibility of the Asian longhorned tick to various acaricides used in tick control. The results showed that the tick species is currently not resistant to the tested acaricides. Responsible integrated management and early detection of resistance are important for long-term efficacy of tick control products.
PEST MANAGEMENT SCIENCE
(2023)
Article
Parasitology
Ruihua Xin, Guibo Wang, Zhengying Qiu, Qian Ma, Saad Ahmad, Feng Yang, Hui Wang, Jiongjie He, Xiaohan Jing, Yan Sun
Summary: The study found that cinnamon, clove, and chamomile essential oils were highly toxic to Haemaphysalis longicornis ticks, with cinnamon essential oil exhibiting the most competitive acaricidal activity. Cinnamon essential oil showed high LC50 rates against unfed adults, nymphs, and larvae of H. longicornis. Furthermore, cinnamon essential oil inhibited the reproduction of H. longicornis, with significantly reduced oviposition and hatching rates compared to the control group. The major compounds in cinnamon essential oil, transcinnamaldehyde and cinnamic acid, exhibited similar levels of acaricidal activity and oviposition inhibition as cinnamon essential oil.
VETERINARY PARASITOLOGY
(2022)
Article
Parasitology
Chuks F. Nwanade, Min Wang, Tianhong Wang, Xiaoyu Zhang, Can Wang, Zhijun Yu, Jingze Liu
Summary: This study demonstrates that the essential oil of Cinnamomum cassia and (E)-cinnamaldehyde have the potential to be developed into botanical-based larvicidal and nymphicidal agents for tick control, without causing mortality in non-target insects.
PARASITES & VECTORS
(2021)
Article
Environmental Sciences
Ye Qiao, Zhijun Yu, Lingqian Bai, Hao Li, Songbo Zhang, Jingze Liu, Zhihua Gao, Xiaolong Yang
Summary: Chemical acaricides are commonly used in traditional tick control, but their use has led to the development of tick resistance and environmental pollution. This study evaluated the potential application of essential oils from Thymus mongolicus, Cinnamomum verum, and Origanum vulgare for controlling the vector tick Haemaphysalis longicornis. The results showed that the essential oils of these plants exhibited significant acaricidal activity against both larval and adult H. longicornis, suggesting that plant essential oils could be a more environmentally friendly alternative to synthetic acaricides in the future.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agricultural Engineering
Zhihua Gao, Zhijun Yu, Ye Qiao, Lingqian Bai, Xuecheng Song, Yanqing Shi, Xinxin Li, Bo Pang, Maihemuti Ayiguli, Xiaolong Yang
Summary: This study analyzed the chemical composition of essential oils from Syzygium aromaticum, Ilex chinensis, and Citrus limon, and assessed their potential for controlling the tick Haemaphysalis longicornis. The results showed that these essential oils exhibited significant acaricidal activity against the ticks, inhibited their oviposition, and affected the activity of certain enzymes. Therefore, they have great potential as alternatives to synthetic acaricides for tick control.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Entomology
Ningmei Wang, Aimeng Ji, Abolfazl Masoudi, Shuang Li, Yuhong Hu, Yefei Zhang, Zhijun Yu, Han Wang, Hui Wang, Jingze Liu
Summary: In this study, the protein regulation mechanism of low-temperature tolerance in Haemaphysalis longicornis was investigated. The results showed that maintaining cell homeostasis, cell viability, and enhancing cell tolerance were crucial for the ticks to survive under low temperatures. Furthermore, arylamine N-acetyltransferase, inositol polyphosphate multikinase, and dual-specificity phosphatase were identified as potential key proteins in low-temperature tolerance.
Article
Entomology
Min-Seung Kang, Jun-Hwan Park, Hoi-Seon Lee
Summary: In this study, the acaricidal and AChE inhibitory activities of volatile constituents and their derivatives from Alpinia galanga oil against Haemaphysalis longicornis nymphs were evaluated. The results showed that ethyl cinnamate, ethyl methoxycinnamate, and methyl cinnamate were the major active compounds in A. galanga oil. Among the cinnamate derivatives tested, allyl cinnamate exhibited the strongest acaricidal activity and also affected AChE activity in H. longicornis nymphs.
EXPERIMENTAL AND APPLIED ACAROLOGY
(2022)
Article
Parasitology
Duo Wang, Xiaocan Xu, Lihong Lv, Pinxing Wu, Hongmeng Dong, Shuwen Xiao, Jingze Liu, Yonghong Hu
Summary: Haemaphysalis longicornis is a globally distributed tick species that transmits various pathogens. Chemical acaricides have disadvantages such as resistance and environmental damage, while a livestock vaccination targeting tick protective antigens could be an effective and environmentally-friendly approach. Lipocalins play key roles in ticks and the recombinant HlLIP protein shows promise as a vaccine against H. longicornis infestation.
VETERINARY PARASITOLOGY
(2021)
Article
Veterinary Sciences
Nneka Iduu, Subarna Barua, Shollie Falkenberg, Chance Armstrong, Jenna Workman Stockler, Annie Moye, Paul H. Walz, Chengming Wang
Summary: Theileria orientalis Ikeda genotype, a parasite causing economic challenges in cattle in Asia, New Zealand, and Australia, has been identified in Alabama, USA. The study found that infected cattle showed a high pathogen burden and the infection was persistent even in seemingly healthy cattle. Further investigation and surveillance of Theileria orientalis Ikeda and Haemaphysalis longicornis ticks in Alabama and other states, as well as evaluating the pathogenicity in cattle, are necessary.
VETERINARY SCIENCES
(2023)
Article
Food Science & Technology
Jun-Hwan Park, Hoi-Seon Lee, Namhyun Chung
Summary: The essential oil extracted from Litsea cubeba fruits showed acaricidal and repellent activities against unfed nymphs and adults of Haemaphysalis longicornis, with 3,7-dimethyl-2,6-octadienal being the most effective compound. It suggests that 3,7-dimethyl-2,6-octadienal could be a promising natural candidate for developing new sustainable acaricidal and repellent agents.
APPLIED BIOLOGICAL CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Zhijun Yu, Biao He, Zhen Gong, Yan Liu, Qianghui Wang, Xiaomin Yan, Tiantian Zhang, Abolfazl Masoudi, Xu Zhang, Tianhong Wang, Xiaolong Yang, Hui Wang, Quan Liu, Jingze Liu, Changchun Tu
Summary: We report the sequencing, assembly, and annotation of the 3.16 gigabase genome of the tick Haemaphysalis longicornis. The genome of this species is larger than the previously assembled one and contains a high proportion of simple sequence repeats. Through genomic analysis, key genes involved in iron metabolism, detoxification, and freeze tolerance of H. longicornis were identified. Additionally, numerous endogenous viral elements were found within the genome. These findings provide insights into the genetic mechanisms of specific biological processes in ticks and lay the foundation for integrated control of ticks and tick-borne diseases.
Review
Biochemistry & Molecular Biology
Changwon Yang, Whasun Lim, Gwonhwa Song
Summary: Biologically active compounds used in agriculture can easily spill into aquatic environments, leading to the accumulation of insecticides and other chemicals in aquatic organisms. These insecticides may induce immunotoxic responses, altering the immune system of fish and even causing death in severe cases.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2021)
Article
Agricultural Engineering
Chuks Fidelis Nwanade, Min Wang, Hongxia Li, Abolfazl Masoudi, Zhijun Yu, Jingze Liu
Summary: Plant essential oils can be used as alternatives to synthetic acaricides. The acaricidal activity of cinnamon essential oil is related to the presence of benzyl benzoate, which shows high toxicity against mites. Other compounds present in the oil can interact with benzyl benzoate to enhance its activity. Enzyme assays show that benzyl benzoate inhibits AChE activity. The ecotoxicological assessments indicate minimal effects on non-target terrestrial invertebrate, but toxicity to non-target aquatic species.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Ecology
Jacob Schultz, Phillip Scheuerman, Megan Quinn, Bill Brooks, Matthew Beer, Andrew Joyner
Summary: This study used species distribution modeling (Maxent) to predict suitable habitat areas for the invasive Asian longhorned tick in northeast Tennessee, and identified increasing human risk in the future. It suggests utilizing species distribution models as an effective tool for surveillance and control strategies against the spread of the Asian longhorned tick.
ECOLOGICAL INFORMATICS
(2023)
Article
Agronomy
Duo Wang, Ru Li, Ya-Xue Wu, Xiang-Yuan Fan, Xiao-Ya Liu, Feng Yang, Tian-Tian Zhang, Jing-Yi Ma, Yong-Hong Hu
Summary: This study reports the molecular characterization of the HK gene and its potential application in vaccines against Haemaphysalis longicornis. The results showed that protein and DNA-based vaccines could increase antibody levels in immunized animals. Vaccination trials on rabbits demonstrated that protein and DNA vaccines reduced tick infestation, egg mass weight, and egg hatching rate. Protein vaccination provided 65.6% protection against adult female ticks, while DNA vaccination provided 51.8% protection. In conclusion, the HK protein and DNA vaccines have potential as effective tick control tools and inhibiting glucose metabolism may be a new strategy for tick control.
PEST MANAGEMENT SCIENCE
(2023)