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Madagascar: Discovery of a biological insecticide to fight against a parasite harmful to bees




Madagascar: Discovery of a biological insecticide to fight against a parasite harmful to bees
A parasitic mite, Varroa, of Asian origin, wreaked havoc in bee colonies in Madagascar and threatens the apiculture sector of the Big Island and its 102,833 hives.

A biological insecticide created on the Big Island to eradicate the disease is being tested and the first results are encouraging according to experts.
 
The Minister of for Agriculture, Ihanta Randriamandrato, the key is to protect and hold the parasite at a low level of contamination on bees.
 
"Treatment should be continued. The aim is to control Varroa, but we cannot claim to extermination", said the Minister of Agriculture lexpressmada.com site.
 
25,000 hives have been contaminated in 2012 by the parasite and honey production has declined last year by nearly 90%.
 
A disaster for a major pan of the economy of Madagascar. Because more than one million people depend directly on domestic beekeeping to live and feed. Honey production is estimated at 3,000 tons each year. An industry that generates 6 million annually in sales.
 
The varroa mite (insect of 1.5 mm to 1 mm) feeds on the blood of bee larvae or adult. The parasite pierces the skin of its victims, and transmits viruses that can distort genetically the wings of bees.
 
But in most cases, no visible morphological characteristic of varroa infection prevents to detect contamination of swarms.



Antso Rajaona


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