This month we feature another invasive species, the three-host tick, Haemaphysalis longicornis. A multigenerational infestation of this species was detected in Hunterdon Co. last summer by Tadhgh Rainey (a Rutgers Entomology graduate student!) and IDed using a DNA based approach by Andrea Egizi, also a Rutgers graduate. Some common – and possibly misleading – names are “bush tick” and “long-horned tick”. In New Zealand and parts of Australia, where it was introduced over 100 years ago presumably from Japan, it is called the “New Zealand cattle tick” as it is the only tick feeding on cattle. Originally from northeast Asia (China, Korea, SE Russia, Japan), this tick is commonly found on cattle, sheep, deer and medium-sized mammals. And because it feeds very successfully on large, domestic animals, it is potentially a very big problem for the livestock industry. The other problem is that some populations of this tick are parthenogenetic, which means males are not necessary. Parthenogenesis allows infestations to quickly reach very large numbers – so much so that in certain settings, host animals are weakened by the blood loss. The extent of infestation in NJ/US is still not known. Multiple agencies are currently addressing this issue and we should no more by spring. In this image, there are two females (left and middle) and a nymph on the right (scale in mm). For more information see:https://fonseca-lab.com/research/global-health-the-tick-that-binds-us-all/
In this video brought to you by the New Jersey Climate Adaption Alliance, the increasing variability in climate brings along with it factors that affect human health, including potential changes in arboviral diseases:
For more information, see the NJ CLimate Adaptation Alliance website. They have lots of informative video!
Dina Fonseca has launched her lab’s new webpage at https://fonseca-lab.com/ . Here you can get the latest information on what the lab is involved in, including global climate change impacts on disease epidemiology. Publications, research project, outreach and the people involved can all be found there. Keep coming back as the website, like the projects, evolve!
Thanks to Daniela Correia for getting the site up and running! She is the CVB’s multitasking secretary.
Course Description: This course meets pesticide applicators in need of credits before their pesticide applicator license expires in October. The training has been tailored for government employees with immediate concerns and responsibilities for stewardship of public health, mosquito research, surveillance and control. All who need re-certification credits in the above categories are welcome to sign up.
Topics for this one day course include:
9:45 AM – Registration & Coffee
10:00 Bionomics of Rare Mosquitoes Found in New Jersey
Scott Crans, Office of Mosquito Control Coordination
10:30 Pesticide Update for 2017
Dr. George Hamilton, Rutgers Department of Entomology
11:00 From Aerial Spraying to Beekeeping Practices, What are The Effects of Mosquito Abatement on Honeybees?
Dr. Diana Carle, Rutgers Department of Entomology, Center for Vector Biology
11:30 Lunch Break- Light Lunch Provided
12:30 Advances in Vector Control Science: Rear-and-Release Strategies Show Promise… but Don’t Forget the Basics
Dr. Brian Johnson, Rutgers Department of Entomology, Center for Vector Biology
1:00 Amplification and Transmission Cycles: Turn Up the Volume!
Dr. Lisa Reed, Rutgers Department of Entomology, Center for Vector Biology
1:30 Demonstration and Research: Mosquito Insecticide Resistance Management
Dr. Dina Fonseca, Rutgers Department of Entomology, Center for Vector Biology
Come join the fun! For more information and to sign up, click here.
The Northeastern Integrated Pest Management at Cornell will be hosting three webinars in September 2017 that could be of interest to people following arboviruses, disease, vectors, pests and/or control. Their webinar series, called “The IPM Toolbox” will include:
- 11 September 11:00 am – 12:00 pm Laura Harrington will talk about the erstablishment of the Northeast Regional Center for Excellence in Vector Borne Diseases.
- 13 September 11:00 am – 12:00 pm Scott Isard will talk about iPIPE or the integrated Pest Information Platform for Extension and Education.
- 25 September 11:00 – 12:00 A Team of people, including Rick Cooper and George Hamilton, will discuss the Brown Maromorated Stink Bug and control.
For more information, see http://www.northeastipm.org/ipm-in-action/the-ipm-toolbox/
From the abstract: The lone star tick, Amblyomma americanum, is a vector of Ehrlichia chaffeensis and E. ewingii, causal agents of human ehrlichiosis, and has demonstrated marked geographic expansion in recent years. A. americanum ticks often outnumber the vector of Lyme disease, Ixodes scapularis, where both ticks are sympatric, yet cases of Lyme disease far exceed ehrlichiosis cases. We quantified the risk for ehrlichiosis relative to Lyme disease by using relative tick encounter frequencies and infection rates for these 2 species in Monmouth County, New Jersey, USA. Our calculations predict >1 ehrlichiosis case for every 2 Lyme disease cases, >2 orders of magnitude higher than current case rates (e.g., 2 ehrlichiosis versus 439 Lyme disease cases in 2014). This result implies ehrlichiosis is grossly underreported (or misreported) or that many infections are asymptomatic. We recommend expansion of tickborne disease education in the Northeast United States to include human health risks posed by A. americanum ticks.
Read more here at EID ! NOTE: There is a Continuing Medical Education (CME) credit available (1.00 AMA PRA Category 1 ) upon participation in activity with this article. See the first page of the article for more information.
From the Abstract: We describe a 2-yr trial to evaluate the ability of SELECT Tick Control System (TCS) host-targeted bait boxes to reduce numbers of host-seeking Ixodes scapularis nymphs in a residential neighborhood. After four successive 9-wk deployments, nymphal and larval I. scapularis infestation prevalence and intensity were significantly reduced on target small mammals. In addition, these deployments resulted in 87.9% and 97.3% control of hostseeking nymphs in treatment sites at 1 yr and 2 yr postintervention, respectively. Installation of a protective metal cover around the SELECT TCS bait boxes eliminated nontarget wildlife damage to bait boxes that resulted in failure of previous bait box types. The results are discussed in the context of the residential environment and future research needs.
Schulze T, R A Jordan, M Williams and M C Dolan 2017 Evaluation of the SELECT tick control system (TCS), a host-targeted bit box, to reduce exposure to Ixodes sxapularis (Acari: Ixodidae) in a Lyme disease endemic area of New Jersey. Journal of Medical Entomology, https://doi.org/10.1093/jme/tjx044