Bee colony collapse explained?

marknmtMay 14, 2014

A newly released report from Harvard claims it's neonics- link attached.

Here is a link that might be useful: Harvard neonic article

Thank you for reporting this comment. Undo
Scott F Smith(6B/7A MD)

I think this is about the 5th "finally explained" article I have seen on this topic. If you read down into the article neonics have been banned in France for five years and they still have CCD so I doubt this is the main problem.

Scott

    Bookmark   May 14, 2014 at 10:13AM
Thank you for reporting this comment. Undo
JoppaRich(7b)

"In contrast, the new study found that long-term exposure to small amounts of neonicotinoids wasn't compromising the bees' immune resistance to pathogens. The hives had just as many infections when they weren't exposed to pesticides. This suggests that "neonicotinoids are causing some other kind of biological mechanism in bees that in turn leads to CCD," scientists said. "

. They're presupposing a narrative and trying to fit the data to it. That's exactly the wrong way to do this. The story goes where the data says it does.

Like the above poster said, they've banned neonictonoides in several countries, and there hasn't been any improvement. That suggests that it's not neonictonoides that are causing it.

They're clearly bad for bees, but I don't think they've got anything to do with CCD.

As to CCD, a couple things are clear - it's hitting commercial beekeeping corporations much worse than its hitting home ones, and its hitting home ones worse than it's hitting feral colonies. My hypothesis is that it's related to genetic bottlenecking via commercial bekeepers frequently requeening from the 2 or 3 major queen producers.

    Bookmark   May 14, 2014 at 10:20AM
Thank you for reporting this comment. Undo
franktank232(z5 WI)

So the food source for bees is now high fructose corn syrup? No wonder they are dying.

1 Like    Bookmark   May 14, 2014 at 12:14PM
Thank you for reporting this comment. Undo
JoppaRich(7b)

There's nothing wrong with high fructose corn syrup in this context.

    Bookmark   May 14, 2014 at 12:20PM
Thank you for reporting this comment. Undo
fruitmaven_wiz5(5)

Fructose in high amounts (like high fructose corn syrup) is bad for humans because our fructose-processing pathway is "meant" to be a minor pathway. It's easily overloaded, so insulin and blood sugar get out of whack.

Fructose from fruits isn't bad, because it is in comparatively low amounts.

High fructose corn syrup now and then isn't bad, because it doesn't constantly overload your system.

People just run into trouble when they drink many cans of fructose-laden soda every day.

But anyway, bees don't have this problem, their processing pathways are different. Honestly, I am not certain what the major sugar in nectar is, but I doubt the HFCS is harming the bees.

    Bookmark   May 14, 2014 at 8:31PM
Thank you for reporting this comment. Undo
lazy_gardens

In Australia, which has one of the healthiest bee herds in the world and has never reported a case of CCD, neonicotinoids have been in widespread use for over a decade.

So if neonics were a problem, it would be showing up in Australia.

One thing Australia does NOT have is the huge migratory hive business ... and the varroa mite.

1 Like    Bookmark   May 14, 2014 at 8:42PM
Thank you for reporting this comment. Undo
plumhillfarm

I pulled up the atricle and read it. There were no differences between the neonicotinoids and the controls before winter. They feed a 137 ppb solution, or 0.74ng of the neo per bee per day (20% of the LD50) for 91 days in the fall, or a total "dose" of 67ng per bee (20X the LD50). The problem with the study is they assumed the bees were metabolizing the pesticide, when it really just got made into honey which the bees stored to eat in the winter. The dose in the honey likely was 200ppb and there was 20X more than needed to kill half of them.. Pesticide levels in honey and pollen are checked regularly by both the States and the feds, and the 90th percentile (ie highest 10%) was 7.3ppb, so the dose used was 18X the 90th percentile (3X the max detected over 10 yrs). The fact they the fed it for 13 weeks, vs real life of maybe a couple weeks of bloom, the timing (fall when no crops are blooming) and the doses used bring into question the validity of this study for CCD research.

    Bookmark   May 15, 2014 at 9:05AM
Thank you for reporting this comment. Undo
mittenstate(5b)

Please see the research by Dr. Potter, University of Kentucky.

    Bookmark   March 10, 2015 at 12:19PM
Thank you for reporting this comment. Undo
drew51 SE MI Z5b/6a

Mushrooms can save the bees.

    Bookmark   March 11, 2015 at 4:25AM
Sign Up to comment
More Discussions
Questions on American Plum, Chickasaw Plum, & Beach Plum
Hi, I have limited space and will definitely be planting...
njbiology
Table Grapes for the Southeast
It seems that most of my table grapes have not survived...
trianglejohn
Prime-Ark Freedom Chill Hours
For anyone wondering, Prime-Ark Freedom appears to...
Jay Part Shade (Zone 10B, S21, Los Angeles)
Apricots, Hunza and Manchurian blossom and flowering.
Hi, I live in Oslo, Norway, which is around a 5b or...
roots_feeding
conflicting pawpaw spacing info
Last week I planted several dozen paw paw. I had read...
Edwin Turlington
Sponsored Products
Braided Accent Rug: Brook Farm Winter Green 2' x 4'
Home Depot
Under-bed Storage Box
Overstock.com
Colonial Classic Kitchen Island
Overstock.com
Fabbian | Ray Pendant Light
YLighting
Colonial Mills Madison Braided Rug - Jet Black - MD44R024X036
$22.98 | Hayneedle
22" Four-Wheel Trolley
$200.00 | Horchow
Squire Solid Brass Fireplace Tool Set
Signature Hardware
Floor Lamps: Eclipse 85 in. Floor Lamp 6431-01
Home Depot
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™