The Walrus and the Honey Bee (Steve Donohoe)
Explorez tous les épisodes de The Walrus and the Honey Bee
| Date | Titre | Durée | |
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| 04 Jan 2025 | Stress Testing Varroa Treatment Regimes | 00:46:35 | |
Based on post of 19 November 2024 on thewalrusandthehoneybee.com 01:30 The damage caused by varroa mites - leading cause of colony losses worldwide 03:30 Learning to keep bees alive 04:00 Current trend among hobby beekeepers for going treatment-free 06:00 USA honey bee colony losses, deformed wing virus 07:45 Using an alcohol wash to monitor mite infestation 09:00 Randy Oliver spreadsheet model 10:20 Available mite treatments, using them properly, resistance to treatment 14:00 Extended release oxalic acid - not yet approved in UK 15:40 Mechanical methods, drone comb removal, caging queens - brood break 20:00 Samples of bees don't always give accurate results, what to do if mite numbers are high in June 24:00 Trying different scenarios in the spreadsheet model, one treatment per year - not sustainable 26:30 deciding on the starting number of mites to use in the model 26:50 The four measures I look for when evaluating a treatment regime: starting mites, ending mites, peak number of mites, number of mites in September (winter bees) 30:15 Two treatments per season - autumn and winter. Timing of oxalic acid treatment in winter, when are they broodless. 31:45 The two treatment regime does ok. The only problem is that there is not a huge amount of leeway, so if the winter oxalic was not fully effective the starting number of mites would be potentially high enough to cause problems before the autumn treatment. 33:00 Three treatments per season, spring amitraz, autumn formic, winter oxalic - this regime is bulletproof and pretty well guarantees control of varroa mites throughout the season. The difference between three treatments versus two is massive. 36:15 Balancing damage by mites against putting chemicals in hives 37:00 Importance of keeping the good genetics in our honey bees, such as gentle, low swarming, high honey production. By not treating I lose most of my bees and most of those favourable genetics, is it really worth it to have varroa resistant bees that have lost the traits that I want 39:30 Most bee farmers will treat for varroa and not raise varroa resistant bees. The only way to successfully breed varroa resistant bees will be to find a place far away from any bee farmers - very hard to do in the UK 40:30 Downside of three treatment regime - no point doing alcohol wash, cannot spot the queens that have varroa resistant bees in their colonies 42:00 Stress testing as above but with a brood-break due to caging the queen. Three treatments per season still wins. My conclusion is that the brood break strategy is not worth the effort, but it may work for others, especially countries with more stable weather. 44:45 Thymol effect on laying rate of queens, oxalic acid trickle versus sublimation
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| 13 Apr 2025 | Varroa: Why Treat? by Kirsty Stainton | 00:22:59 | |
A balanced and detailed look at the science surrounding the issue of non-treatment of honey bees, including a comparison between the two main approaches: selective breeding and using survivor stock. Bluesky Threads Instagram YouTube Facebook
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| 01 Mar 2025 | Beekeeping Essentials: Introducing Queens | 00:17:45 | |
Imogen reads from Steve's blog post, in which sets out his latest learnings and understanding of this sometimes tricky subject. How to introduce a new queen into a colony that has lost it's own.Bluesky Threads Instagram YouTube Facebook
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| 01 Jan 2025 | How To Increase Honey Production: Three Factors That Matter Most | 00:14:55 | |
Imogen reads from Steve's blog post of 1st September 2024 00:53 Queens The importance of the queen in a honey bee colony cannot be overstated 02:37 Gruff Rees reviewed "Healthy Bees, Heavy Hives" by Paul Horton and Steve Donohoe, calling it "the best beekeeping book ever". We'll take that. 02:40 Comparison between colonies headed by my normal queens and four which contained queens made by Ivan Nielsen in Denmark. It turned out that the Nielsen queens made lots more honey. Nielsen says that the aim is for honey to be uniformly spread over all colonies, rather than have some monsters and some small ones. 04:40 What makes a good queen? Prolific queens will lead to bigger honey crops, but only if forage is available and the weather is good. 05:50 Starvation and having to feed syrup in early June. 06:00 Buying queens. Quality will vary, as with all natural things. 06:40 Making your own queens 07:15 Heavy queens tend to be better 07:30 Ideal conditions for making queens. 07:50 Controlling Disease and Parasites - the second important factor in producing a good honey crop. Chalkbrood, European foulbrood, varroa mites and associated viruses, chronic bee paralysis. The treatment protocol followed by Steve and Alex at Walrus Apiaries. Formic Pro. Thymovar. VarroMed. 10:38 Forage and Nutrition - the third important factor. Fixed apiaries versus migratory beekeeping. 11:20 When to feed? Sugar and pollen substitute. Importance of pollen stores in Autumn. 13:00 Sugar contamination risks. Manley's thoughts on syrup feeding in May. Timing of feeding for winter stores. 14:20 Summary
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| 10 Mar 2025 | Interview With Jolanta | 00:21:16 | |
Taken from a chapter in Steve Donohoe's book, Interviews With Beekeepers, this covers a conversation between Steve, Jolanta, and Murray McGregor in 2017. Jolanta is the head of the queen rearing unit at Denrosa Apiaries, and she explains how she makes her queens. Denrosa is the largest commercial beekeeping operation in the UK.Bluesky Threads Instagram YouTube Facebook
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| 27 Jan 2025 | Room For All Types Of Beekeeper | 00:17:49 | |
Intro 00:25 New book by Dorian Pritchard on conservation of native bees 01:10 Argument for conservation of native bees, legally protected areas should be created 02:40 Is the black bee really the best bee for all people? I think not, but each to their own. 04:40 Sue Coby's New World Carniolan project could be a template to follow 05:00 Examples of human interference in nature to domesticate wild animals into farming livestock. Also BEAGLES! 07:20 Modern commercial bee farming, selective breeding of honey bee queens 08:15 Good things about bee farming, pollination increasing crop yields 09:15 Some negative things about bee farming: miticides, reduced diversity, competition with wild pollinators, spread of pathogens 11:20 EU policies to assist apiculture and pollinators 11:50 Selective breeding - objectives and methods, isolated mating, instrumental insemination 12:55 Natural selection - survivors pass on resilience 14:10 Advantages of natural selection 15:00 Downside to natural selection, low honey, unpredictable temperament, short term high losses 15:55 Conclusion - we can have both
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| 06 Jan 2025 | Rapeseed Oil and Offshoring | 00:09:35 | |
0:00 When oilseed rape (OSR) first arrived in the UK 00:50 The UK has moved from being a net exporter to net imported of rapeseed oil, costing the UK economy £1 billion 01:10 List of the main cooking oils ranked by healthiness 03:10 Rapeseed oil is the most consumed oil in the UK 04:00 OSR is useful to arable farmers as a rotation crop 04:40 OSR downsides, cabbage stem flea beetle, neonics 05:20 The neonic ban in the UK, lower crop yields 05:50 Sources of rapeseed oil imports 06:15 EU emergency derogations (the loophole) 07:20 Emergency derogations are also allowed for so-called organic crops 07:50 Offshoring of neonic usage 08:20 OSR Reboot - plans for the future by the main stakeholders in the industry
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| 25 Mar 2025 | Beekeeping Essentials: The Critical Spring Period | 00:15:27 | |
From Steve Donohoe's blog post of the same title, this covers all of the important beekeeping things that matter during the springtime. It covers feeding bees early on, then providing space, dealing with colonies of different sizes, equalisation, reversing boxes, difference between drawn comb and foundation, and even a little nod towards early queen rearing.Bluesky Threads Instagram YouTube Facebook
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| 21 Feb 2025 | Early Spring 25 Update | 00:09:19 | |
As we move from winter into spring here in England, Steve Donohoe discusses over-wintering success, feeding colonies, and plans for once the season kicks off.Bluesky Threads Instagram YouTube Facebook
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| 09 Jan 2025 | Latest Advice On Varroa | 00:13:34 | |
00:30 Importance of both good queens and low mite levels 01:40 How Steve's thinking on varroa treatment regimes evolved from 2 times per year to three. 02:20 Alcohol wash on all colonies as per Randy Oliver, treatment threshold 03:15 What to do with infested colonies in summer when supers are on, what causes outlier colonies with more mites than the others, benefits of winter oxalic acid treatment 04:50 Shook swarm - the drastic option 05:50 Treatment free approach, for optimists and people in isolated locations, or people who have a closed population of bees 06:50 The problems with a "live and let die" approach 07:30 Randy Oliver's method for breeding resistant bees that are good bees for commercial bee farming 08:50 Quotes from Randy regarding going treatment free 09:40 Progress towards resistance is still a win, fewer chemicals, lower costs 10:30 Latest advice on dealing with varroa in honey bee colonies, below 2% infestation and below 1,000 mites total 11:30 Importance of continual monitoring for treatment-free beekeepers, natural mite drop problems, alcohol wash 12:30 Survival versus thriving bees, compare traditional to treatment free Latest science on treatment-free: Mondet, F., Beaurepaire, A. McAfee, A., Locke, B., Alaux, C., Blanchard, S. and LeConte, Y. (2020) Honey bee survival mechanisms against the parasite Varroa destructor: a systematic review of phenotypic and genomic research efforts. International Journal for Parasitology, 50. DOI:doi.org/10.1016/j.ijpara.2020.03.005
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| 15 Jan 2025 | Swarm Prevention Strategies | 00:55:37 | |
Intro including reference to Ian Steppler YouTube video just posted on varroa treatments, using Randy Oliver spreadsheet model. https://youtu.be/Z2FLoAq6LDc 02:20 Recent apiary inspection of nucleus colonies 03:50 What causes swarming? 06:40 Impossible to eliminate, but we can influence 07:10 Genetics, personal experience, Paul Horton's bees, sub-species 11:25 Queen pheromones, age of queens 12:35 Brood nest congestion 15:10 Climate and weather 16:30 Poor weather in spring 2024 reduced swarming 18:20 Prevention rather than control of swarming 20:20 Selective breeding, selective pressure - leaving a single queen cell in a swarmed colony pushes it in the wrong direction, using cells/queens from breeding program is better, using over-wintered queens 24:55 Re-queening, younger queens are less likely to swarm 26:20 Gruff Rees YouTube interview "No Weekly Inspections" with David Wainwright - a less intensive style of beekeeping 28:40 Regular hive inspections 7 to 10 day rotation, checking for eggs, space for bees, space for queen to lay, swarm cells 30:50 Space for bees, brood, and stores. Staying ahead of the bees. Supering. 33:15 Frame swapping, making splits or cell builders, space in a Langstroth brood box 37:20 Reversing boxes, double brood, brood and a half 40:00 Adding a brood box of foundation overhead, then splitting, combined with oxalic mite treatment 43:55 Demaree, adding space while keeping the colony together - not a split. Lots of heavy lifting, might be problematic with foundation in the bottom box and the changeable UK weather 49:00 What works for one person may not work for the next person 49:40 Checkerboarding, small book on the subject published by Northern Bee Books 53:45 Summary
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| 02 Jan 2025 | Queen Rearing - Timings and Workflow | 00:36:28 | |
Intro and reasons for not using an AI reader. 01:30 Reasons for making queens 02:35 Importance of being organised, knowing timings, mindset - sometimes things go wrong 03:19 Breeder queens, Steve's three breeder queens in 2024 and why these were selected 06:45 Keeping breeder queens in nucleus hives 07:40 Drones, open mating, using drone comb 08:20 Using BeeBase 09:20 Re-queening poor colonies 10:08 Cell builders, double nuc method compared to Brother Adam method 12:50 Grafting day, checking for queen cells 14:50 Well fed larvae for grafting, two different grafting methods 17:50 Avoiding brace comb being build across queen cells 19:00 Removing queen cells and moving to the incubator 20:00 Effects of different incubation temperatures on queen development time and colour 21:30 Keeping the cell builder going through summer, bottlenecks in production 23:40 It's ok if you don't have an incubator 24:20 Mating nucs, Carricel portable incubator, cell protectors 25:20 Mini-plus hives and Kieler nucs, Steve much prefers Mini-plus and is phasing out the Kielers. Setting up a Kieler nuc for first use. 27:50 If queens don't get mated in 2-3 weeks they are replaced with a new cell 30:00 Advantages of Mini-plus, importance of letting queens mature for a month or more before introducing to a new colony 32:00 Over-wintering queens in nucs, re-queening production colonies after their second season, push-in cages 34:30 Failure to mate, drone laying queens 35:30 Making queens is very worthwhile, visit the blog post to view relevant images.
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