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News Briefs | June 21, 2023

Save the Date!

MVCAC Fall Meeting October 2-4 at the Hilton Palm Springs.

Booking information and schedule to come


MVCAC Summer Meeting July 25th via zoom from 9 AM to noon. 

Zoom info to come. 

Award Nominations

It's nomination time! Nominations are now open for MVCAC's Meritorious Service, Honorary Member, and the Service with Distinction Awards.  All nominations must be received in the MVCAC office by September 11th so they may be included on the ballot to all the member districts, or adequate ad hoc committees may be appointed (for Service with Distinction). 



For all award nominations, a list of the individuals qualifying accomplishments and achievements must also be received with the nomination letter. 

 

Please submit nominations via email to mvcac@mvcac.org or fax at 916-444-7462 attn: Award Nominations. Ballots for Honorary and Meritorious Service will be sent out after September 13th, with a due date before the Fall meeting in October. 

 

Please do not hesitate to contact the MVCAC office if you have any questions!

CDPH Insecticide Resistance Survey

The California Department of Public Health (CDPH), Vector-Borne Disease Section is currently conducting a survey to better understand the barriers encountered by vector control districts in California for conducting routine insecticide resistance testing. We kindly request your input by answering the following questions to the best of your knowledge and experience. All responses will be kept confidential. Your participation in this survey is greatly appreciated. The survey will be closed on July 11th, 2023. If there are any questions, please contact Hannah.Romo@cdph.ca.gov


Best Management Practices for

Mosquito Control

An updated version of Best Management Practices for Mosquito Control in California (PDF) is available from the California Department of Public Health (CDPH). This resource is a manual for landowners and land managers, and provides specific, primarily non-chemical actions that can be implemented to reduce or eliminate mosquito production from different habitats. Additional information about mosquitoes and larval habitats in California is also provided. This manual and additional resources are available from CDPH at:

 

National Mosquito Control Awareness Week

is this week

For National Mosquito Control Awareness Week (June 18-24) we wanted to share the media and outreach materials which include a press release (with a quote from Rep. Josh Harder, CA-9) and a social media calendar with posts, graphics, and videos. These materials can be found on member section of the MVCAC website under PR Resources > Mosquito Awareness Week. The public facing Mosquito Awareness Week webpage is here. Any questions, please contact Meagan Luevano (meaganl@placermosquito.org) or Lisa Yarbrough (lyarbrough@ka-pow.com).


Sample Social Media for Ticks and Mosquitoes

The California Department of Public Health has a selection of social media messages and graphics for agencies and districts to share about tick-bite prevention, Lyme disease awareness, and dead bird reporting.


  • Nymphal Ixodes pacificus Active in Spring/Early Summer

Share social media messages about nymphal tick awareness and tick-bite prevention this season: Nymphal Tick Social Media (MVCAC PR Google Drive)

 

  • WNV & Dead Bird Reporting

Share social media messages about dead bird reporting for WNV surveillance this spring and summer: WestNile.ca.gov Sample Social Media

 

Other helpful CDPH resources and links:

Using drones with granular larvicide? 

The MVCAC ad hoc Drone Committee is here to help you plan granular larvicide applications with your drone. Download the guide here to learn best practices for selecting a launch site, organizing the flight team, mission safety, regulations, and certifications.  

New Process for Submitting Updated NOIs and PAPs to the State Water Board 

For vector control districts that wish to use pyriproxyfen in WOTUS, an updated Notice of Intent form and Pesticide Application Plan needs to be submitted to the State Water Board. Examples of completed documents can be found on the Water Board NPDES Vector Control Permit website. Due to web accessibility requirements, the State Water Board is no longer allowed to post 3rd party documents unless they are ADA-compliant. Therefore, the Water Board requests applicants post documents on their webpage and provide a link which will then be used to post on the State Water Board website for 30-day public comment as required per the permit.


Email Gurgagn Chand, Gurgagn.Chand@waterboards.ca.gov, your website link for the document. After the application link is posted for 30-day public comment, Water Board staff will notify you of any items that need to be addressed within the amended application package as well as any public comments received. If everything checks out, generally an amended Notice of Applicability approving the revisions will be issued by the Deputy Director of Water Quality within 1-2 weeks. 


Email MVCAC Regulatory Affairs Committee Chair (Erika Castillo, erika@mosquitoes.org) if you have any additional questions.

Buying a drone? Read this first.

The California legislature is discussing a bill, AB 740 [Gabriel] Drone cybersecurity, that would limit the use of drones by all government agencies in California that fail to meet certain cybersecurity standards or originate from countries identified by the Federal Government as a cybersecurity concern . DJI, who makes most of the drones that are used in the US, would be limited under this bill. As a result, no government in California agency would be allowed to fly DJI drones under this bill unless they qualify for a limited discretionary exemption.  

 

The current bill would bring this change into effect on January 1, 2026. MVCAC is seeking to motivate an extension to this deadline to 2028, but is not currently opposing the bill. Very recently, the bill was put on a two-year cycle, so there may be a further extension of the deadline, but this is not guaranteed. MVCAC will continue to engage on this issue as the bill progresses.

 

Please keep this in mind as you consider purchasing drones. Contact the Chair of the MVCAC ad hoc Drone Committee if you wish to discuss further (Eric Haas-Stapleton, Eric@mosquitoes.org).

News Headlines

No Effect of Realistic Microplastic Exposure on Growth and Development of Wild-caught Culex (Diptera: Culicidae) Mosquitoes.

Thormeyer, M., and M. Tseng. 2023


J Med Entomol 60: 604–607. https://doi.org/10.1093/jme/tjad014


Abstract [condensed]: Microplastic (MP) pollution is a threat to environments around the world and mosquitoes are particularly affected because of their high chance of encountering MP as larvae.  Wild-type first instar Culex pipiens and Culex tarsalis larvae were exposed to two 4.8–5.8 μm polystyrene microplastic concentrations (0 particles/ml, 200 particles/ml, 20,000 particles/ml) to evaluate the effect of MP exposure on body size, development, and growth rate. No effects of microplastics were found on any of the traits studied in either species.


Note: This piece informs us that the environmental impacts of microplastics on mosquito biology should be minimal, but that studies of additional factors would be needed to gain a better understanding.


[submitted by the Vector and VectorBorne Disease committee].  

Wind-assisted high-altitude dispersal of mosquitoes and other insects in East Africa.

Atieli, H. E., G. Zhou, D. Zhong, X. Wang, M. Lee, A. S. Yaro, M. Diallo, J. Githure, J. Kazura, T. Lehmann, and G. Yan. 2023


J Med Entomol https://doi.org/10.1093/jme/tjad033

 

Abstract [condensed]: Previous studies in a malaria endemic area of the Sahel region in West Africa revealed high-altitude, long-distance dispersal of insects and various mosquito species. The objective of the current study was to assess whether similar behavior is exhibited by mosquitoes and other insects around the Lake Victoria basin region of Kenya in East Africa. Insects were sampled monthly from dusk to dawn over 1 year using sticky nets suspended on a tethered helium-filled balloon at 90, 120, and 160 m above ground level. There were no significant differences in mosquito survival and oviposition rate according to capture height. These data suggest that windborne dispersal activity of mosquito vectors of malaria and other diseases occurs on a broad scale in sub-Saharan Africa.


Note: This study provides information on mosquito dispersal capacity with high-altitude wind. What may be perceived as accidental movement may be more common than previously believed.   Previous mark-release-recapture studies with Cx. tarsalis (Bailey et al. 1965. Hilgardia 37: 73) also indicated enhanced downwind dispersal.  


[submitted by the Vector and VectorBorne Disease committee].

MVCAC News Briefs - Other Outbreaks


Please note: The items contained below are not the views or opinions of MVCAC but they are what is being reported in the media. The goal of MVCAC providing this information is to keep MVCAC members informed of all news articles that are being presented regarding other outbreaks.


May 26, 2023: Mosquito samples in Tulare County test positive for West Nile Virus - ABC 30 News


May 3, 2023: How drones in South Bay are combatting an expected heightened mosquito season - AMC 7 News

Do you have important news to share about your district or mosquito and vector issues? 

If you would like your news to be included in the MVCAC News Briefs, please send press releases and/or links to relevant news articles to mvcac@mvcac.org
MVCAC Jobs Board
Interested in a career in mosquito and vector control? Check out the MVCAC Jobs Board at www.mvcac.org
 
Have a Job or RFP to post to MVCAC.org? 
Requests to post job listings (no more than 500 words in length) may be submitted by MVCAC members via this web form (Note: you will need to login to access this form). Non-Members are asked to submit listings to the webmaster at mvcac@mvcac.org.
MVCAC Sustaining Member Corner
Note: MVCAC does not endorse the products below, but we do support our Sustaining Members

Central Life Sciences has announced the release of Aqua Zenivex™ E20, a reduced-risk adulticide for mosquito control professionals. 

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