Results 11 to 20 of about 1,655 (166)

Efficacy of microencapsulated nucleopolyhedroviruses from Colombia as biological insecticides against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Acta Agronómica, 2017
Wettable powder formulations by microencapsulation of viral occlusion bodies (OBs) of both Spodoptera frugiperda multiple nucleopolyhedrovirus from Colombia (SfCOL) and a genotypic variant (SfCOL-A) were evaluated for controlling the fall armyworm S ...
Gloria Patricia Barrera Cubillos, Juliana Andrea Gómez-Valderrama, Laura Fernanda Villamizar Rivero   +2 more
doaj   +4 more sources

Interactions Between Nucleopolyhedroviruses and Polydnaviruses in Larval Lepidoptera [PDF]

, 2012
The field dynamics of some insect populations are strongly influenced by two types of insect viruses: the nucleopolyhedroviruses (NPVs) and the polydnaviruses (PDVs). Although greatly different in origin and mode of infection, both viruses produce considerable mortality directly and indirectly in the field, and have evolved reproductive strategies that
James Slavicek, Vincent D’Amico
core   +4 more sources

Insect‐specific viruses used in biocontrol of mosquito‐borne diseases

Interdisciplinary Medicine, Volume 1, Issue 1, January 2023., 2023
Insect‐specific RNA viruses (ISRVs) are involved in a wide range of families including Flaviviridae, Bunyaviridae, Negeviruses, Togaviridae, Reoviridae, Mesoniviridae, and Rhabdoviridae, which cannot infect vertebrates, including humans. However, ISRVs can infect and replicate in mosquitoes, interfering with the replication of mosquito‐borne viruses ...
Jiating Chen, Shengqun Deng, Hongjuan Peng   +2 more
wiley   +1 more source

The distribution of covert microbial natural enemies of a globally invasive crop pest, fall armyworm, in Africa: Enemy release and spillover events

Journal of Animal Ecology, Volume 91, Issue 9, Page 1826-1841, September 2022., 2022
The infection of the invasive fall armyworm, with a natural enemy from its native range and novel pathogens from its new range, has important consequences for understanding the population ecology of invasive species and virus–insect interactions. The authors show that temporal and geographic factors are also important in understanding the distribution ...
Amy J. Withers, Annabel Rice, Jolanda de Boer, Philip Donkersley, Aislinn J. Pearson, Gilson Chipabika, Patrick Karangwa, Bellancile Uzayisenga, Benjamin A. Mensah, Samuel Adjei Mensah, Phillip Obed Yobe Nkunika, Donald Kachigamba, Judith A. Smith, Christopher M. Jones, Kenneth Wilson   +14 more
wiley   +1 more source

Resource limitation has a limited impact on the outcome of virus–fungus co‐infection in an insect host

Ecology and Evolution, Volume 12, Issue 3, March 2022., 2022
Little is known about how variation in host resource quantity affects pathogen co‐infections. Here, we show that changes in dietary quantity do not alter mortality in mixed pathogen infections in an insect host. However, a virus and a fungus did respond differently to changes in host nutritional status through subtle changes in duration of infection ...
Pauline S. Deschodt, Jenny S. Cory
wiley   +1 more source

An Integrated Eco‐Epidemiological Plant Pest Natural Enemy Differential Equation Model with Various Impulsive Strategies

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
We established a mathematical model based on the sense of biological survey in the field of agriculture and introduced various control methods on how to prevent the crops from destructive pests. Basically, there are two main stages in the life cycle of natural enemies like insects: mature and immature.
Sayooj Aby Jose, R. Raja, Quanxin Zhu, J. Alzabut, M. Niezabitowski, Valentina E. Balas, Tongqian Zhang   +6 more
wiley   +1 more source

The History of Baculovirology in Africa

Viruses, 2023
Baculovirology has been studied on the African continent for the development of insect virus-based biopesticides and, to a much lesser extent, vaccine production and delivery, since the 1960s.
Sean Moore, Michael Jukes
doaj   +1 more source

Biosafety of Recombinant and Wild Type Nucleopolyhedroviruses as Bioinsecticides [PDF]

International Journal of Environmental Research and Public Health, 2007
The entomopathogenic Autographa californica (Speyer) nucleopolyhedrovirus (AcMNPV) has been genetically modified to increase its speed of kill. The potential adverse effects of a recombinant AcMNPV (AcAaIT) as well as wild type AcMNPV and wild type Spodoptera littoralis NPV (SlNPV) were studied.
Mohamed-Bassem, Ashour, Didair A, Ragheb, El-Sayed A, El-Sheikh, El-Adarosy A, Gomaa, Shizuo G, Kamita, Bruce D, Hammock   +5 more
openaire   +2 more sources

Interactions between baculoviruses and entomophagous insects

Egyptian Journal of Biological Pest Control, 2020
Some laboratory studies revealed that predators can readily attack and consume virus-infected prey with no detrimental effects on their biological parameters. Most tested predacious species did not discriminate between healthy and virus-infected prey. In
Mohamed Samir Tawfik Abbas
doaj   +1 more source

Integrated Analysis of MicroRNA and mRNA Expression Profiles in the Fat Bodies of MbMNPV-Infected Helicoverpa armigera

Viruses, 2022
MicroRNAs (miRNAs), are a novel class of gene expression regulators, that have been found to participate in regulating host–virus interactions. However, the function of insect-derived miRNAs in response to virus infection is poorly understood.
Zhenpu Liang, Yanqing Yang, Xiaoyan Sun, Junyang Du, Qiuyun Wang, Guozhi Zhang, Jiran Zhang, Xinming Yin, Deepali Singh, Ping Su, Xiaoxia Zhang   +10 more
doaj   +1 more source