Mosquito & Vector News

Comparative vector competence of post-2015 St. Louis encephalitis virus in Culex tarsalis and Culex quinquefasciatus mosquitoes.

Submitted by the MVCAC VVBD Committee Rodriguez et al. 2025. bioRxiv preprint. DOI: 10.64898/2025.12.16.694562 ABSTRACT The human pathogenic orthoflavivirus St. Louis encephalitis virus (SLEV) reemerged in the western United States…

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Highlights in Medical Entomology 2023: vectors and the environment

Submitted by the MVCAC VVBD Committee Hung, KY. 2025. Journal of Medical Entomology, 62(6): 1381–1385, https://doi.org/10.1093/jme/tjaf136 Abstract: Multiple factors play a role in determining the appropriate methods for protecting communities…

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Description of all stages of a new tick species from California, Haemaphysalis vespertina (Acari: Ixodidae), with redescription of H. leporispalustris Packard, 1869 adults and phylogenetic relationships among related U.S. taxa

Submitted by the MVCAC VVBD Committee Egizi, A. et al. 2025. Zootaxa 5719: 049-072. https://doi.org/10.11646/zootaxa.5719.1.2 Abstract. All active stages of Haemaphysalis vespertina sp. nov. (Acari: Ixodidae), a tick previously identified…

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Association Updates

2026 Sentinel Chicken Order Forms Available Now!

ORDER NOW! Chickens are being supplied by Vega Farms Please return order form by February 28, 2026 Via email or fax to 916-444-7462 Northern and Southern* Region: (Vega Farms) Pick-up: April, specific…

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News Brief January 14, 2026

Beyond the Sessions: All the Fun Awaits at the 94th Annual MVCAC Conference!; February 4, 2026 Board Meeting Agenda Packet Now Available; Reminder to Districts – NPDES Reports Due March…

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Reminder to Districts – NPDES reports due March 1

A reminder that our individual annual reports are due March 1. Reports should be sent to the State Water Resources Control Board (DWQ-PesticidesNPDES@waterboards.ca.gov and copied to mvcac@mvcac.org. The MVCAC NPDES coalition…

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