Beekeepers will soon have new options for protecting their hives from devastating diseases. It is the first vaccine for insects.
Earlier this month, the U.S. Department of Agriculture granted conditional approval to a new product from Georgia biotech firm Dalan Animal Health.
This is not a vaccine in the traditional sense. Immunity is conferred by treating the queen bee. That means bees don’t have to queue for injections.
We asked Tarpy to explain the science behind this new option and what it means for beekeepers.
What is the significance of USDA approval?
Few insects have been “domesticated” under the USDA Veterinary Medicine umbrella, so we believe this is the first registered product for this species of insect. was then demonstrated in other insects until finally demonstrated in honeybees, suggesting transgenerational immune priming or TGIP.
This is where the pathogen-exposed mother somehow transfers immunity through the egg, making the offspring less susceptible to the same strain of the same disease. The exact mechanism of the maternal effect is unknown. Research funded and published by this company suggests a modest (30-50%) reduction in infection in larvae inoculated in a controlled laboratory setting. doing. At this time, it is unclear to what extent this will translate into a real environment, but we understand that field trials are currently underway.
How do you vaccinate bees?
Beekeepers mix the product, dead cells of disease-causing bacteria, into the cake fondant that beekeepers can feed their colonies, since most of their food is sugar. It feeds the queen bee and prepares the eggs that the queen will lay to provide intergenerational immune priming.
Dead larvae decompose and give off a very strong odor. It’s like dirty gym socks in a ziplock bag, stored in a truck on a hot summer’s day.
What is the cause of American blood rot? What happens to infected hives? Where did the name of the disease come from?
It is caused by larvae of the spore-forming bacterium Paenibacillus. Because it is highly contagious and devastating, it is widely recognized as the most harmful breeding pathogen of bee colonies. Like dirty gym socks, it emits a very strong odor, hence its name due to its main symptoms.
Can this approach be used for other threats to bees?
that is hope. The company with this current product has another bee bacterial pathogen (European rot) and a fungal pathogen (Chalkbrood) in its pipeline. We particularly expect this approach to be used for many of the viral pathogens faced by honeybees, although they are very different from bacterial pathogens and insect immune systems respond differently to them. More research needs to be done before doing this. It may be a useful app.
How can commercial beekeepers benefit from vaccines?
Beekeepers will benefit in several ways. First, there is less reliance on antibiotics to alleviate disease, further reducing antibiotic-resistant strains and honey contamination. The only true way to eradicate the disease is to kill the bees and burn this hive equipment, as it doesn’t kill the spores, it only prevents infection. beekeeper.
What important role do bees play in plant pollination? How many food and fiber crops require bees or other pollinators?
Bees are the primary insect pollinators of about 100 crops grown in the United States, accounting for increased yields and billions of dollars in increased economic productivity. Without bees and other pollinators, we wouldn’t be able to eat about a third of what we eat every day, especially all the fruits, vegetables and nuts that make up a healthy diet.
How big a problem is America’s blood rot in North Carolina?
The State Department of Agriculture and Consumer Services Apiary Inspection Service are doing such an excellent job of keeping North Carolina’s bee population healthy that the number of colonies with detectable American rot is 1. less than %. However, this is not uncommon, as outbreaks can be devastating to beekeepers and can easily be transmitted within and between businesses.
How do you monitor threats to bees, including disease?
There are six full-time apiary inspectors across North Carolina, which is the envy of most other state agriculture departments. They regularly visit the apiaries to inspect them for signs of disease and other stressors and offer sage advice on management options.
What other threats face bees and other pollinators in our state?
Bees have three main problems:
- parasites and pathogensespecially the parasitic tick called the Varroa destructor and the many viral pathogens it spreads.
- nutritional stressmainly caused by habitat loss and lack of forage for nectar and pollen.
- pesticidean insecticide designed to kill pests that have off-target effects, especially on beneficial insects like honeybees.
When it comes to managed bees, the overall goal is to make beekeeping sustainable and reduce colony mortality seen each year by an average of about 40%. But for other pollinators, most of which are solitary, wild-dwelling native bees that are not actively managed by beekeepers, the goal is habitat and landscape protection.
Original: Bee vaccination does not sting
Than: North Carolina State University
