However, in most places, there are dozens or hundreds of other bee species. We don't know or hear much about them. They are solitary bees, various types of bumblebees, etc. They are the ones disappearing, and fast. Unfortunately, they are the first victims of growing urban areas, mono-culturing and pesticides.
Which is exactly why we can produce so much food / acre. Land use would need to go up significantly, and thus the price of food, in order to be able to use "natural" methods of pest control. This would affect developing countries the most.
For all of our medicines, we or our doctors have to make a judgment about whether the side effects are worth it for the therapeutic value that we get. If we said that we would never deliberately use any poisonous substances, we might have to throw away most of our pharmacopoeia.
You can try to make an argument against pesticides on the basis that their side effects aren't worth it (and I prefer organics myself), but I think the fact that pesticides are "poison" doesn't get you there by itself.
"In another study, Krupke found that the seed treatments weren't of much benefit to corn yields... the results from all the sites, the average yield from the treated seed was about 2 percent higher, but Krupke says that difference is not statistically or economically significant "
- pesticide use (neonics, mostly)
- 'varroa destructor' parasites
- loss of bee habitat ('green deserts')
The first one will be solved (I think) by public awareness. There is a clear direction in the public opinion against chemical pesticides (I know, 'everything is a chemical', I'm talking about public perception, for better or for worse). It won't be long before (the most damaging) pesticides will be squeezed out by on the one side regulation and on the other market pressures - consumers asking for food with certain origin characteristics (like, no use of certain pesticides, or none at all), thus farmers asking for treatment-free seeds, thus the manufacturers providing it. They might be resisting it now, but the invisible hand is hard to stop. It's just a matter of time - that's not a call for complacency, obviously, the pressure needs to be kept on.
The second one is a bee husbandry problem. There too the tide is turning - after 3 decades of researchers looking in the direction of chemical treatment, the direction is shifting towards less treatment, and moving towards resistant bees through selective breeding, going back to stronger, locally adapted breeds, 'Darwinian management' and less invasive apicultural practices. How this will fit with intensive agriculture remains to be seen (will such apiculture be compatible with moving 10's of thousands of hives from orchard to orchard across great distances, following the blossom of various plants across large areas?); but then again, there is already a small move towards/experimentation with alternatives for bee pollination anyway (like bumble bees). Maybe a combination of measures will yield a workable solution at scale.
The last one is the most overlooked but (IMO) the real killer. The efficiency of machines today (compared to even just 2 decades ago) makes agricultural land so maximally occupied for growing food that there is no room for natural habitats for any sort of animal - mammals, birds, and insects including bees. Modern agricultural land might look 'natural' and 'green' when looked at from aerial pictures, or even when driving by, but because every last square inch is cultivated, no animals can live there (hence 'green desert'). Bees today do better in urban and suburban settings than in rural areas, because of all the plants in people's gardens providing forage all season long.
If we want results in the next few years, the only solution will be government intervention - be it through subsidies for leaving land fallow, or by plain requiring certain naturalzing management interventions (or rather, 'non-interventions'. The public pressure that is shaping up around neonics just doesn't exist (yet) when it comes to (ecologically) sustainable land use management. It's also much harder to quantify - either a farmer uses neonics or he doesn't; but what is 'sustainably managed land'? Everybody can define that the way suits them best, hence a lemon market for consumers who wish to influence producers.
(note on references to the above: this is roughly the state of the literature in apiculture and agronomics, interspersed with some personal observations and extrapolations; although there will be plenty of different opinions on different aspects of it. In fact, I'm pretty sure that everybody in one of the fields that are relevant will find something to take issue with. There is no single one paper that says 'look everybody we conclusively proved that these three issues account each for x% to the total problem'. On the other hand, I don't think anyone who reads the major journals and follows the major conferences (and who doesn't have an ulterior motive to push some fringe agenda) will disagree that some combination of the above is what is causing the difficulties that bees are facing the last decade, or two).
Are there any numbers comparing colony collapse between normal and organic beehives?
I imagine that bees used for producing organic honey will have access to greater variety of plants, since their immediate surroundings doesn't contain pesticides, which obviously also lowers their exposure to pesticides.
I'm aware that bees used for organic honey travels outside their designated organic habitat, but all things equal, they should be better of with regard to the 1st and 3rd factor of colony collapse, than non-organic bees.
(But yes. Just call it "poison dust", not neonicotinoid-derivatives..)
Legislation alone is enough to incentivize him creating this new planter design.
There are some monitoted experiments (google 'bond experiment' for example) but they cannot be used for 1:1 comparisons to say what is 'better'. Plus, what is 'organic'? Technically (legally), it's following Demeter standards, but who can fulfill those? Does that mean that all those others are 'non-organic'? No, there's a very wide range left.
And even more... What are the goals of the beekeeper? No commercial apiary can survive with 5 kg/year yield per hive. Should commercial honey production go away? Leaving aside the animal welfare aspect, I think there's room for a range of approaches, but it needs to be balanced. Of course, balanced by whom, that's the question...