A beekeeper friend asked me the other day, “Why haven’t those danged researchers found us the cure for varroa yet?” I replied, “They have—Marla Spivak’s been on her soapbox for years, telling us what it is: Stop perpetuating bees that can only survive with chemical help.”
This is the first experimental data from Eu-
rope with continuous monitoring where it is
demonstrated that honey bee colonies infested
by V. destructor may survive for over 6 years
even if mite control is not practiced. The pre-
sented data suggest that some form of adapta-
tion has occurred in the system, ensuring the
survival of both the host and the parasite. The
fact that (i) the proportion of colonies that died
over winter decreased significantly (Fig. 1),
(ii) the swarming incidence increased (Fig. 2),
and (iii) the mite infestation rate of adult
bees in the fall decreased significantly (Fig. 3)
strongly supports the hypothesis that the sys-
tem will develop a host-parasite relationship
where both parties will survive even if mite
control is not practiced.
However, there is one thing all these beekeepers have in common-- one experience they all share: like it or not, they all watched their bees go through at least two Collapse and Recovery cycles before their apiaries would stabilize enough to produce surplus hive products without treatments.
A surprising result was the greater amount of honey stored in the control group. One would expect the bees to be able to store more honey in the preformed cells, since no wax would need to be produced to form the cell walls. I have no explanation for the contrary results observed.
“BEES THAT WILL NOT CORRECTLY DRAW OUT FOUNDATION OVER THE COURSE OF THE YEAR WILL SUCCUMB TO DISEASE, DIE AND/OR NOT OVERWINTER PROPERLY. DO NOT TRY TO SAVE THEM OR YOU WILL PERPETUATE YOUR MITE AND DISEASE PROBLEM. TREAT THIS AS SURVIVAL OF FITTEST ONLY, AND EXTINCTION FOR THAT WHICH WILL NOT RETROGRESS TO SOLVE THE PROBLEM BIOLOGICALLY BACK TO TRADITIONAL BEEKEEPING.”
The skeptic will say, “Well, then you are simply selecting for bees that are genetically resistant to mites, and “retrogression” has more to do with selecting for mite resistance, rather than for cell size preference. Indeed, this is the very process that happened in South Africa, and anywhere else that mite-tolerant honey bees have evolved.”
asd scrie: pentru a nu pati ca anul trecut am facut deja un tratament cu oxalic.
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