This is a little experiment. Penny Robertson, Secretary of my local Leiston and District Beekeeping Association in Suffolk, told me in 2014 that she was not aware of any of the LDBKA’s >100 members using, or ever having used, a poly hive. So I installed this one last summer and this is what I saw last weekend – with the thermometer showing a chilly 4C !
With the bees flying at these low temperatures (note that 10C is generally viewed as the lowest safe temperature for bees to fly) it is possible to offer both positive and negative interpretations about Castle hive’s unusual excursions. Here’s how:
An Optimist might rejoice that the bees are so well insulated in their poly-hive that they are able to fly in unusually low temperatures. A Pessimist might respond that this could equally be a function of their breeding line, rather than their lodgings, a classic case of nature, rather than nurture. Furthermore, he might add, there is no obvious advantage to be flying in dangerously low temperatures, so perhaps something about their the poly hive is forcing them to fly. Perhaps they need water to dilute their honey stores, or the fondant and pollen feed which I can see them eating on top of the frames. Ah-ha, replies the Optimist – that suggests that they are benefitting from an early build-up of brood, which will position them well for the Spring – unlike the draughty Snape and Iken cedar hives. Then again, perhaps the bees in the traditional wooden hives are regulating their hives so that some natural condensation is retained inside for diluting their stores to make them edible for brood-raising, so they do not have to fly, counters the Pessimist. Hmmm.
So will I be enthusiastically recommending the use of polystyrene hives to the good beekeepers of the Suffolk coast in 2015 ? Too early to tell.
But while the jury’s out, here are some other considerations about using the poly hive. The Pessimist would note that, as configured, it has bottom bee-space, so the semi-rigid transparent plastic sheet supplied as the roof to seal the hive, makes it fussy to close up the hive, jiggling the sheet around to avoid squashing bees between the plastic roof and the frames. Also, the walls of the hive are too wide to attach a frame holder, which are very useful to keep a couple of frames pressed up close to the outer wall of the hive at inspection time, rather than putting them on the ground, leaning against the hive. The Optimist would strike a more positive note, pointing out that the hive floor has a nice sloped landing board, that the polystyrene body makes the hive lightweight to handle, and that all the poly infrastructure can be intermixed with wooden brood and super boxes, if required. And finally, it is easy to strap down to a paving slab to keep it from blowing away in the wild coastal winds.
So it will be a while before I can assess the outcome the first year of my Suffolk poly hive. And when I’ve made my mind up, I’ll take the Optimist and the Pessimist down to the Jolly Sailor to buy them both a pint of Adnams bitter.