Article
Biotechnology & Applied Microbiology
Shan-Ko Tsai, Yu-Lin Hsu, Der-Jiang Chiao, Pei-Yun Shu, Hui-Tsu Lin, Shu-Fen Chang, Hui-Chung Lin, Shih-Hsin Huang, Chun-Hsiung Wang, Chia-Chu Hsiung, Chang-Chi Lin, Tzong-Yuan Wu, Szu-Cheng Kuo
Summary: This study describes the production of novel CHIKV virus-like particles (VLPs) from mosquitoes using a Baculovirus/Mosquito system. The VLPs showed potential as an antigen for serological detection and vaccine development against CHIKV infection, as they were able to induce neutralizing antibody responses and specific antibody production in mice.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Entomology
Trevor Williams, Guadalupe del Carmen Melo-Molina, Jaime A. A. Jimenez-Fernandez, Holger Weissenberger, Juan S. S. Gomez-Diaz, Laura Navarro-de-la-Fuente, Andrew R. R. Richards
Summary: The nucleopolyhedroviruses of caterpillars can persist in soil and provide a valuable source of genetic diversity for insecticides. However, their prevalence in soil is influenced by geographical location and soil type.
Article
Agronomy
Saif ul Malook, Xiao-Feng Liu, Caiyan Ma, Jinfeng Qi, Wende Liu, Shaoqun Zhou
Summary: The Chinese maize cultivar Xi502 shows greater resistance to fall armyworm due to its higher levels of benzoxazinoid compounds, which significantly inhibit the growth of fall armyworm larvae. This provides important genetic material and preliminary evidence for further study of the FAW-resistance mechanism in maize.
Article
Entomology
Akira Otuka
Summary: This study developed a prediction method for the precise timing and area of overseas migration of Fall Armyworm, using numerical weather predictions and insect models. The method achieved a satisfactory hitting ratio in the prediction evaluation, indicating its operational use for pest management.
Article
Entomology
Shan Jiang, Xiao-Ting Sun, Shi-Shuai Ge, Xian-Ming Yang, Kong-Ming Wu
Summary: In this study, it was found that by irradiating male Spodoptera frugiperda insects with a 250 Gy dose of X-ray radiation and releasing them in a ratio of 12:1 with non-irradiated males, the sterility of their offspring reached 74% and there was no significant difference in mating competitiveness among the different ages of irradiated males. Field-cage experiments confirmed that release ratios ranging from 12:1 to 20:1 significantly reduced larval populations, with a leaf protection effect of 48-69% and an insect population reduction of 58-83%. This study provides fundamental information for controlling S. frugiperda using sterile insect techniques.
Article
Entomology
Sandy Sousa Fonseca, Ana Leticia Zero Santos, Ciro Pedro Guidotti Pinto, Luiz Marques, Antonio Cesar Santos, James Bing, Timothy Nowatzki, Amit Sethi, Guilherme Duarte Rossi
Summary: Lepidopteran pests, including the highly destructive Spodoptera frugiperda, have been effectively controlled through the use of genetically modified plants expressing insecticidal proteins. However, cases of resistance to these proteins have emerged. This study investigated the potential of a soybean trypsin inhibitor (SBTI) to disrupt the development of Bt-susceptible and Bt-resistant populations of S. frugiperda. The results showed that when the resistant population consumed Bt maize plants amended with SBTI, high mortality and reduced larval weight were observed, indicating an increased susceptibility to Bt maize.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2023)
Article
Entomology
Caio Cesar Truzi, Natalia Fernanda Vieira, Joice Mendonca de Souza, Sergio Antonio De Bortoli
Summary: This study aimed to evaluate insect developmental parameters by comparing food consumption of Spodoptera frugiperda larvae reared with diets of different protein levels under laboratory conditions. The research found that the protein level in the diet influenced the duration of larval and pupal periods, as well as pupal weight, but did not affect larval survival, fecundity, and adult longevity.
JOURNAL OF INSECT SCIENCE
(2021)
Article
Entomology
Rubens H. Kanno, Aline S. Guidolin, Fernando E. O. Padovez, Juliana G. Rodrigues, Celso Omoto
Summary: Insecticide resistance is often associated with fitness costs, which are influenced by environmental and ecological factors. This study investigated how host plants can affect the fitness costs of insecticide resistance in Spodoptera frugiperda. The results showed that the fitness costs of spinetoram resistance in S. frugiperda depend on the host plants that S. frugiperda larvae fed on.
JOURNAL OF PEST SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jiedong Feng, Yaqin Sun, Kefei Zhang, Yindi Zhao, Yi Ren, Yu Chen, Huifu Zhuang, Shuo Chen
Summary: This study develops an automatic method for detecting maize pests using digital technology and deep learning techniques in precision agriculture, and verifies the accuracy and robustness of the method.
APPLIED SCIENCES-BASEL
(2022)
Article
Ecology
Monica Watson, Georgiana May, Kathryn E. Bushley
Summary: This study found that the fall armyworm obtains its fungal symbionts from various sources, including conspecific insects and unknown environmental sources, and transmission among insects may play a crucial role in the acquisition of fungal symbionts.
Article
Agronomy
Fernando Elias Oliveira Padovez, Rubens Hideo Kanno, Celso Omoto, Aline Sartori Guidolin
Summary: The study revealed that there was no fitness cost associated with chlorantraniliprole resistance in the Spodoptera frugiperda strain with the near-isogenic background. On the other hand, a significant fitness cost was detected in the strain with a different genetic background. This suggests that the genetic background of resistant strains plays a crucial role in determining fitness costs.
PEST MANAGEMENT SCIENCE
(2022)
Article
Pharmacology & Pharmacy
Renata Gois de Mello, Thaissa Consoni Bernardino, Luis Giovani Oliveira Guardalini, Renato Mancini Astray, Marta Maria Antoniazzi, Simone Goncalves Silva Jared, Eutimio Gustavo Fernandez Nunez, Soraia Attie Calil Jorge
Summary: A method for producing virus-like particles containing the structural proteins of the Zika virus in insect cells was successfully established in this study. The recombinant bacmids containing the gene sequences of Zika virus structural proteins were obtained through transformation and infection assays. The virus-like particles were confirmed to exist and showed potential for the development of a Zika virus vaccine candidate.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Entomology
Lei Zhang, Cynthia L. Goodman, Joseph A. Ringbauer Jr, Xingfu Jiang, Weixiang Lv, Dianjie Xie, Tamra Reall, David Stanley
Summary: Insect innate immunity involves cellular and humoral reactions, with cellular immunity relying on hemocytes and humoral reactions leading to the production of antimicrobial peptides and melanization. This study hypothesized that infected larvae of fall armyworms trade off costly hemocyte-based immunity for behavioral fevers. Results showed that fevers increased larval survival, and the presence of prostaglandins mediated the fever reactions. These findings support the hypothesis that infected larvae prioritize behavioral fevers over costly immunity.
Article
Entomology
Nimra Altaf, Atif Idrees, Muhammad Irfan Ullah, Muhammad Arshad, Ayesha Afzal, Muhammad Afzal, Muhammad Rizwan, Jun Li
Summary: The fall armyworm is a polyphagous insect pest, preferring maize but also able to complete its life cycle on sorghum and wheat. Rice is a non-preferred host plant for fall armyworm. Larval diets significantly impact development time, fecundity, and survival rates of the insect. Maize is found to be the most suitable diet for fall armyworm based on the study's findings.
Article
Agriculture, Multidisciplinary
Chen Zu-wen, Yang Yan-chao, Zhang Jian-feng, Jin Ming-hui, Xiao Yu-tao, Xia Zhi-chao, Liu Yuan-yuan, Yu Sai-zhen, Yang Yong-bo, Wang Yuan, Li Yi, Liu Kai-yu
Summary: The fall armyworm, a destructive pest of economic crops, has invaded China. Research shows that the Junonia coenia densovirus (JcDV) can effectively kill second instar fall armyworm larvae, but its efficacy varies when infecting other insect species such as Spodoptera litura and Helicoverpa armigera. JcDV has potential as a biological control agent against pests like fall armyworm.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)