Jennifer A Henke's research while affiliated with Coachella Valley Mosquito And Vector Control District and other places

Publications (16)

Article
Full-text available
Mosquito-borne disease remains a significant burden on global health. In the United States, the major threat posed by mosquitoes is transmission of arboviruses, including West Nile virus by mosquitoes of the Culex genus. Virus metagenomic analysis of mosquito small RNA using deep sequencing and advanced bioinformatic tools enables the rapid detecti...
Preprint
West Nile virus is the most significant arbovirus in the United States in terms of both morbidity and mortality. West Nile exists in a complex transmission cycle between avian hosts and the arthropod vector, Culex spp. mosquitoes. Human spillover events occur when humans are in close proximity to vector populations with high rates of infection. Pre...
Article
Mosquito suppression strategies based on "rear and release" of male mosquitoes are attracting renewed interest from governments, municipalities, and private businesses. These include irradiation-based sterile insect technique, Wolbachia-based technologies, and genetic modification. Each of these approaches requires the mass rearing and release of a...
Article
The red imported fire ant, Solenopsis invicta (Buren), is an invasive pest of agricultural, urban, and natural areas. It is also considered a public health pest due to its painful stings. While it can be efficiently controlled by commercially available fire ant baits formulated with a corn-grit carrier, rain or irrigation is thought to degrade the...
Article
Full-text available
Since the reemergence of St. Louis Encephalitis (SLE) Virus (SLEV) in the Southwest United States, identified during the 2015 outbreak in Arizona, SLEV has been seasonally detected within Culex spp. populations throughout the Southwest United States. Previous work revealed the 2015 outbreak was caused by an importation of SLEV genotype III, which h...
Article
Full-text available
Various products and insecticides are available that purport to reduce wild populations of adult mosquitoes. Recently, several manufacturers and general public comments on the internet have promoted devices that claim that ingestion of salt will significantly reduce populations of wild mosquitoes to near zero; there are no known scientific efficacy...
Article
Full-text available
The genetic diversity and structure of invasive species are affected by the time since invasion, but it is not well understood how. We compare likely the oldest populations of Aedes aegypti in continental North America with some of the newest to illuminate the range of genetic diversity and structure that can be found within the invasive range of t...
Preprint
Full-text available
St. Louis Encephalitis Virus (SLEV) has been seasonally detected within the Culex spp. populations within Maricopa County, Arizona and Coachella Valley, California since an outbreak in Maricopa County in 2015. Previous work revealed that the outbreak was caused by an importation of SLEV genotype III, which had only been detected within Argentina in...
Article
Full-text available
Standard residual pesticides applied to US military materials such as camouflage netting can reduce mosquito biting pressure in the field but may contribute to the evolution of resistance. However, residual applications of a spatial repellent such as transfluthrin could allow mosquitoes the opportunity to escape, only inducing mortality if insects...
Article
Full-text available
Importance West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease. Objective To develop real-time WNV forecasts of infected mosquitoes and human cases. Design, Setting, and Participants Real-time forecasts of WNV in 4 geographically dispersed locations in the United States were generated using a WNV model-inference...
Article
The red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), is a stinging, invasive ant from South America that has plagued the southern US since the 1930s. It is currently established in parts of California, including the Coachella Valley. We introduced and established the fire ant decapitating phorid flies, Pseudacteon curvatus...
Article
The detection of West Nile (WNV) and St. Louis encephalitis (SLEV) viruses in mosquito populations indicates a public health risk but does not guarantee infection and illness among human residents. Proactive steps taken by vector control involving all tools available lowers the risk of spillover transmission to humans. Herein, we outline mosquito c...
Conference Paper
The Coachella Valley Mosquito and Vector Control District has been examining trapping methods to improve its surveillance efforts. In particular, we looked for a trapping technique sensitive enough to detect low levels of Ae. aegypti activity. We opted to construct our own Autocidal Gravid Ovitraps (AGO) traps using the design outlined in Barrera e...
Article
Full-text available
The invasive Aedes aegypti is an important disease vector increasing in frequency in hot-arid regions of the USA such as the Southwest. Within hot-arid surroundings this mosquito may be confined to peridomestic locations that tend to be cooler and humid, such as in lush, irrigated ornamental vegetation surrounding homes. However, to reach these hab...
Article
Commercially available formulations of two entomopathogenic fungi, Beauveria bassiana (Bals.-Criv.) Vuill. (Hypocreales: Clavicipitaceae) and Metarhizium anisopliae (Metchnikoff) Sorokin (Hypocreales: Clavicipitaceae), were assessed for control of Culex quinquefasciatus Say (Diptera: Culicidae) in underground storm drain systems (USDS) in the Coach...

Citations

... The results of the model showed that the mean temperature of warmest quarter (bio10), mean temperature of coldest quarter (bio11), precipitation of driest month (bio14), and human influence index (Hii) were the environmental variables with the highest contribution to the potential distribution of S. invicta in China. This finding shows that temperature and precipitation are the main factors affecting the distribution pattern of S. invicta, while the human influence index is also important [45,46]. ...
... These detections coincided with an outbreak of 19 human cases of SLEV disease in Arizona [21]. Genetic analyses showed that the closest archived sequences to the re-emerged strain of SLEV were from Argentina and although the virus was undetected until the 2015 outbreak, it likely was introduced in 2013 and was found in an archived mosquito pool collected in Maricopa County, Arizona, in 2014 [22]. Subsequently, from 2016 through 2020, 16 more counties in southern and central California also detected SLEV activity via mosquitoes, sentinel chickens, and/or reported human cases. ...
... Anopheles crucians and An. quadrimaculatus have a high tolerance to brackish water and other environmental conditions that are otherwise detrimental to other mosquito species [34,35]. Our spatial analysis reveals the existence of highly conducive environments, characterized by an overabundance of resources supporting the proliferation of An. crucians and An. ...
... Mosquito species are composed of an array of locally adapted populations across their respective ranges. Substantial genetic variation exists in mosquito species (Fouet et al., 2017;Holt et al., 2002;Kang et al., 2021;Maffey et al., 2020;Pless et al., 2020;Yurchenko et al., 2020) and at fine-spatial scales (Ayala et al., 2020;Carvajal et al., 2020;Gutiérrez et al., 2010;Jasper et al., 2019;Matowo et al., 2019), with significant consequences for transmission potential (Azar et al., 2017;Palmer et al., 2018;Vega-Rúa et al., 2020). This genetic variation can interact with local environmental conditions to impact the capacity of mosquito vectors to transmit human pathogens (e.g., dengue; Gloria-Soria et al. (2017) and chikungunya; Zouache et al. (2014)). ...
... Even aerial application of herbicides such as Agent Orange, which became widespread during the Vietnam War is known (Ginevan et al., 2009). All of these activities can contribute to organic pollutant contamination (Britch et al., 2020). Another environmental impact may be related to the construction of ammunition storage facilities where explosives were previously manufactured and processed. ...
... /2022 Viral transmission is particularly relevant in the light of some of these species being invasive pest species that may spread their diseases to the native ant fauna, similar to the welldescribed viral spillover from managed honeybees to the native bees and bumblebees (Fürst et al., 2014;McMahon et al., 2015). On the other hand, the potential exists for viruses to be used as effective biocontrol measures for invasive species (Oi et al., 2015;Oi et al., 2019), if their host specificity is narrow. Even if our study more than doubled the number of known ant viruses, we expect that our knowledge today represents only a minute fraction of the true viral diversity associated with the more than 15,000 ant species. ...
... Predictive models of human WNV cases tend to analyze patterns of incidence at regional to country scales, often in the absence of mosquito data as an important predictor. At these scales, multiple research objectives have driven research into predicting WNV risk to humans, including determining climate factors that increase seasonal risk (10, 11), exploring range expansions under climate change scenarios (12), forecasting incidence at a county-level in real-time (13,14), and developing methodologies that treat WNV clinical incidence as a probabilistic rather than deterministic process (15, 16). Predictive studies of mosquito WNV activity tend to be local, meaning they focus on examining the factors that in uence mosquito infection rates at speci c sites in an area typically no larger than a city or county (17)(18)(19)(20). ...
... larvae for a period of 7-35 days. [18,19] Spinosad acts like a contact poison and affects the nervous system causing paralysis and death. Natular™, a larvicide product, being marketed in the USA and Mexico uses spinosad at concentrations up to 1.6 ppm for community control of mosquito-borne illnesses. ...
... Entomopathogenic fungi are also alternative tools to chemical insecticides (Noskov et al. 2019), mainly the genera Beauveria and Metarhizium (Mannino et al. 2019). Commercial fungal formulations of Cx. quinquefasciatus control are available in California, but their persistence decreases considerably one week after application (Popko et al. 2018). In Aedes control, the promising results are mostly observed in adult insects, with reduced performance against eggs, larvae, and pupa (Cabral et al. 2020;Choi et al. 2020;Prado et al. 2020;Shoukat et al. 2020). ...