Thursday, March 31, 2011

This could be trouble...

I was just reading Dennis Murrell's blog "Bee Natural," linked above and in our blog list. First, a note for Dennis: I am devastated to hear about your hive losses and hope you can recover and do it well! Thank you for posting your insights on the issue of virus overload - hopefully folks will learn from them!

The particular blog article I'm referring to is Dennis' reflections on what happened to his hives. He has been raising bees for decades, but has focused on natural beekeeping for about the last ten years. He had placed his hives in a commercial beekeeper's bee yard for safekeeping for a couple of seasons as he headed off to Florida. When he got back, despite the bees being left alone and in near direct contact with treatment resistant diseases and pests, his hives seemed in great health. But the next season they started exhibiting some health issues. Despite antibiotic and other treatments (and I do agree with him that there are times when dosing your bees with antibiotics is a good idea - even though John might not), the bees completely died out over this last winter, exhibiting the signs of Colony Colapse Disorder (CCD).

Not likely CCD since there are lots of bees present -
but it gives you the idea of what happens when a
colony dies out. Also, not our bees nor Dennis'.

Yet it's not the death of his own bees that worries him as much as something possibly more dire. Just by mingling in the area his bees readily caught everything that the commercial bees had (except, interestingly, the mites) and those diseases tore his hives to pieces. Research has pointed to those diseases being easily trransmitted from commercial/domestic bees to wild bees and even other pollinators. And this is what has him worried.  I'll let him explain:
I don’t know whether all my past wishing would have prevented this season’s outcome. Maybe the wild bees, which have also been decimated, were the disease vector my for bees. But I suspect it was probably the other way around. And recent research shows it possible,
It’s one thing for me to loose my bees. But it’s quite another thing for the wild bee population to perish because of my bees.
The implication here is that the CCD problems we face could easily spread to feral pollinators. As I was getting at in my previous couple of blogs, they are inexorably linked, we really need to find a solution and a better way to do things when it comes to our practices both in the realm of beekeeping and agriculture.
Posted by Bob Nelson

Wednesday, March 30, 2011

Intuitive beekeeping



Solid Bottom Board with entrance reducer -
as it's name implies, the bottom boards are the base for the rest of the hive

With the first inspection of the season, we found that the underside of the cover of the Sicilian Beehive was damp and peeling. We assume that this was caused by a build up of excessive condensation during the winter. However, the lid of the Italian hive showed no such damage. We have come to the conclusion that this is in all likelihood due to the fact that the Italian hive has a screened bottom board which helped in some way to reduce the condensation, whereas the Sicilian hive has a solid bottom board.  Were the beehives to spend a second winter at the side of my house I think we would have dispensed with the solid bottom boards altogether and would have switched to screen bottoms only. However the bees have been moved to a friend's farm, and the beehives are exposed to more sun and wind now. Perhaps with the change in their environment the bottom board may now be an asset, though we won’t know for sure until they have overwintered for a second season.


Screened Bottom Board - hardware screen allows for easy ventilation
 
 I begin to suspect that a good beekeeper is one that pays attention to the condition of the beehive in respect to the environment it is located in, and that just  like bees, hive design needs to adapt to local conditions, as what may work in Florida may not work so well in Maine.

It will be interesting to see what the lids will look like next spring.

Posted by John Rodgers

Tuesday, March 29, 2011

Maybe I was a bit unfair

A couple of posts ago, I basically excoriated the beekeeping industry for practices that hurt bees and that these practices contribute solely to CCD. That is a bit unfair as there are other factors to consider.

Migratory beekeeping has been happening almost as long as humans have kept bees. Egyptians put hives on barges and coasted them up and down the Nile. Other peoples have strapped them to donkeys to follow the flow. When intercontinental rails opened up, beekeepers were there with their hives. Some bees migrate all season long: Borneo beekeepers sometimes migrate with the bees in a small reversal. CCD didn't affect the Egyptians - but those bees had access to multiple flower types along the Nile's fecund shores.

In America, migratory beekeeping is so popular because the current agricultural model is to lay waste to the land, er, rather...plant one crop and only one crop over all surrounding acreage. This monoculture model directly contributes to the undernourishment of the bees. Even if migratory beekeeping wasn't practiced, this lack of biodiversity would likely have some ill effect on the bees, just not to the same degree.

Due to monoculture crops, the land itself is weakened and must be supplemented with all sorts of synthetic fertilizers to nourish the crops. And, due to the lack of full nutrition to the crops, the weakened crops must be supplemented with all sorts of pesticides. Pesticides kill insects indiscriminately; bees are insects. Get the idea? Most of these pesticides do not kill instantly, but rather allow time for the bees to bring them back to the hive, thereby exacerbating the problems inside the hives with existing miticides. And remember, those pesticides are still present when you eat your fruits and veggies. Some of the pesticides are now systemic to the plants: they become part of the plant so that growers need not worry about rain or watering washing off the posion. Pests thus have no way to avoid the pesticide as it becomes part and parcel with the plant. So, that means you can't wash it off, either.

The problems affecting bees will soon be problems affecting us. To a degree, they already do in that the nutrition we get from monoculture crops is a ghost of what it should be and the pesticide residues. A recent study in Spain found that men between 18 and 23 all have significant traces of multiple pesticides in their blood. Many even had traces of DDT, something that I believe was banned before most of these men were born. The study wanted to see if their was a correlation between pesticides and fertilization or lack thereof. If these residual traces do have an effect on humans, what kind of effect do they have on beneficial insects?

So, and this will seem like crazy talk to those who now my conservative viewpoints, my point of this blog is this: a cycle of bad agricultural practices feeds into bad beekeeping practices and will land all of us in a bad spot if we don't change how we view how and what we eat. Will it be easy? By no means. Change rarely is nor is making the right choices. But that doesn't make it any less necessary.

Posted by Bob Nelson