Project Overview
Commodities
- Animals: bees
- Animal Products: honey
Practices
- Animal Production: animal protection and health, genetics, other, parasite control
- Education and Training: decision support system, demonstration, extension, farmer to farmer, networking, on-farm/ranch research, participatory research, technical assistance, workshop, youth education
- Farm Business Management: community-supported agriculture
- Natural Resources/Environment: other
- Pest Management: biological control, disease vectors, economic threshold, genetic resistance
- Production Systems: agroecosystems, organic agriculture
- Sustainable Communities: community development, new business opportunities, partnerships, public participation, public policy, quality of life, sustainability measures
Abstract:
The Varroa mite is an ecto-parasite of honeybees which feeds on developing and adult bees, however, the devastating impact is the link between mites and the spread of a deadly RNA virus (Deformed Wing Virus). The combination of mites and Deformed Wing Virus has resulted in large-scale colony losses across the world. Exploratory research in Hawaii indicates that honeybees are developing Varroa-resistance. The traits that increase colony survivorship and reduce the success of this parasite represent a breakthrough in identifying “survivor” stock. Surviving colonies have specialized behaviors, including detection and removal of mite infested worker brood, this causes a reduction in mite reproductive output, leading to reduced mite populations (Grindrod and Martin, 2021). The behavior can be quantified via brood inspection, thus a numerical score of the behavior is obtained for each colony. This project contributed to the creation of a database on varroa-resistance of Oahu’s colonies that will help us understand how this process develops and will give the producers the ability to collaborate with researchers on topics that are interesting to both groups. Additionally, it examines the relationship between mite population levels inside of colonies practicing recapping behavior to assess whether they may be used by stakeholders as a proxy tool to identify resistant colonies. Learning how to best utilize natural elements of bee behavior, confirm that these colonies can survive without treatment for long periods of time, and examining how to manage field interventions to obtain the best possible result, are all exciting prospects that derive from the proposed survey of Oahu’s bees.
Project objectives:
1- Determine the prevalence of Natural Varroa Resistance (NVR) behavior among the managed bees on Oahu, Hawaii
2- Test the heritability and viability of NVR through field experiments
3- Develop educational materials about resistant stock and examine how to manage local bee stock with the help of Oahu beekeepers