Honey Bee Colony Collapse Disorder. Colony Collapse Disorder. Population crashes have been common place since the 1980’s but have become disastrous since 2006, with 1/3 of honeybee colonies being lost each winter since. These collapses happen during overwintering
Immature drone bees are more likely to be infected than worker bees, while queen cells are almost never infected
In the case of DWV, the mite transmits the virus to the pupae while feeding
If the mite populations within a colony are not kept in check by a beekeeper, the colony will collapse within a few years.
The sub lethal effects of the pesticides on bees can help the Varroa mite
In control bees the third daughter would only have a 13% chance of reaching maturity before the host emerges from it’s cell
The test colonies did show slight improvement in grooming behaviours, but only between close relatives
The impact was miniscule, and not feasible as a control strategy
The impact of brood cell size on the effect of mites within the colony was also tested:
In the wake of alternative strategies failing testing and chemical pesticide use having damaging effects not only on the bees but the rest of the environment around them, people are beginning to look at substances derived from plants as natural pesticides. A safe and eco-friendly way do deal with pests.
Plant derived substances, many from South America, have been shown to have toxicity, repellence, anti-feedant and growth regulatory affects against insect pests.
Apis Mellifera hives are conventionally treated with synthetic acaricides
Ethanolic extracts from Baccharis flabellata and minthostachys verticillata have been shown to have high levels of toxicity to Varroa mites, but be completely harmless to Apis Mellifera hosts.
Baccharis flabellata has been shown to have further repellatory affects on Varroa.
The mixture of Baccharis flabellatas extracts to both prove toxic to and repel the mites simply by the smell of it makes it a promising control agent.
A single botanical extract may be composed of over 150 chemical constituents
These mites are a major pest posed to initiate an economic disaster if they are not controlled.