Nosema ceranae Archives - Scientific Beekeeping https://scientificbeekeeping.com/nosema-ceranae/ Beekeeping Through the Eyes of a Biologist Sun, 03 Mar 2024 14:28:59 +0000 en-US hourly 1 Calculation for nosema spore count using a hemacytometer https://scientificbeekeeping.com/calculation-for-nosema-spore-count-using-a-hemacytometer/ Mon, 07 Jun 2021 16:20:00 +0000 https://scientificbeekeeping.com/?p=7244 calculation of nosema spore counts using hemacytometer Randy Oliver, ScientificBeekeeping.com From Cantwell 1970, assuming that each sampled bee is diluted with 1 mL of water.         Average spore count per bee is then: Average count per single small square x 4,000,000. Total count per large square (16 small squares) x 250,000. Or […]

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]]> The Nosema Problem: Part 7C – The Prevention of Dysentery https://scientificbeekeeping.com/nosema-part-7c-the-prevention-of-dysentery/ Wed, 01 Apr 2020 07:52:46 +0000 https://scientificbeekeeping.com/?p=6419 Contents Review.. 1 Balancing moisture elimination and heat loss. 2 Broodrearing in the winter cluster. 3 So let’s do the arithmetic!. 5 Practical applications. 5 Optimal Cluster size. 5 Winter stores ― honey and beebread. 8 Hive placement. 8 Hive insulation. 9 Hive ventilation. 10 Literature cited. 11 The Nosema Problem Part 7c The Prevention […]

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]]> The Nosema Problem: Part 7b – The Causes of Dysentery in Honey Bees:  Part 2 https://scientificbeekeeping.com/the-causes-of-dysentery-in-honey-bees-part-2/ Tue, 21 Jan 2020 00:49:54 +0000 https://scientificbeekeeping.com/?p=6358 Contents The bees’ need for water. 1 Water and the winter cluster. 1 Water Balance. 2 Water homeostasis and buffering in the winter cluster. 3 Water in the gut. 3 Atmosphere and Humidity within the winter cluster. 3 Evaporation via respiration. 5 Defecation/Dysentery. 6 Literature cited. 8     The Nosema Problem: Part 7b The […]

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]]> The Nosema Problem: Part 5 – Monitoring and Disinfection https://scientificbeekeeping.com/the-nosema-problem-part-5-monitoring-and-disinfection/ Tue, 03 Dec 2019 19:09:06 +0000 https://scientificbeekeeping.com/?p=6151 Contents What the beekeeper can do. 1 seasonality. 2 detection and Sampling. 3 Queens And Nosema. 6 Deadout equipment. 7 citations and notes. 8   The Nosema Problem: Part 5 Monitoring and Disinfection First published in ABJ October 2019 Randy Oliver ScientificBeekeeping.com Some beekeepers are concerned about the current unavailability of fumagillin. Although the Canadians […]

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]]> The Nosema Problem: Part 7a – The Causes of Dysentery in Honey Bees — Part 1 https://scientificbeekeeping.com/the-causes-dysentery-in-honey-bees-part-1/ Mon, 02 Dec 2019 18:51:51 +0000 https://scientificbeekeeping.com/?p=6119 Contents Why would a colony exhibit signs of dysentery?. 3 honeydew.. 4 Microbial dysbiosis or parastism.. 5 The link between pollen and nosema. 7 How about those “winter bees”?. 8 Literature cited. 10     The Nosema Problem: Part 7a The Causes of Dysentery in Honey Bees Part 1 First published in ABJ December 2019 Randy […]

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]]> The Nosema Problem: Part 6 – Treatment https://scientificbeekeeping.com/the-nosema-problem-part-6-treatment/ Mon, 02 Dec 2019 18:39:30 +0000 https://scientificbeekeeping.com/?p=6110 Contents First a return to queens. 1 Treatments for nosema. 2 fumagillin. 3 Alternative treatments. 3 What else is on the market?. 6 Nozevit®. 6 Hive alive®. 9 Acids in syrup. 9 Possibilities on the radar. 9 What if you don’t want to treat?. 9 citations and notes. 10   The Nosema Problem: Part 6 […]

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]]> The Nosema Problem: Part 4 – Nosemosis https://scientificbeekeeping.com/nosema-part-4-nosemosis/ Wed, 09 Oct 2019 20:06:58 +0000 https://scientificbeekeeping.com/?p=5858 Contents Effects of nosema upon an individual bee. 1 Effects of nosema upon the colony. 2 Colonies can fight back. 2 Nosema and almond pollination. 4 Nosema and the queen. 7 How concerned should you be about nosema?. 8 The take-home message. 10 Coming. 11 citations and notes. 12   . The Nosema Problem: Part […]

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]]> The Nosema Problem: Part 3 – Seasonality and Effects of Nosema https://scientificbeekeeping.com/the-seasonality-and-effects-of-nosema/ Wed, 09 Oct 2019 01:44:00 +0000 https://scientificbeekeeping.com/?p=5853 Contents Requisites for nosema to gain a foothold. 2 The importance of pollen to Nosema transmission and reproduction. 4 The connection between nosema and dysentery. 6 putting it all together. 7 Coming. 8 citations and notes. 8   The Nosema Problem: Part 3 Seasonality and Effects of Nosema Randy Oliver ScientificBeekeeping.com First Published in ABJ […]

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]]> The Nosema Problem: Part 2 – The Enigma of Nosema https://scientificbeekeeping.com/the-enigma-of-nosema/ Fri, 19 Jul 2019 00:40:15 +0000 https://scientificbeekeeping.com/?p=5110 Contents The invasion of Nosema Ceranae. 2 How did ceranae get into the U.S.?. 5 Signs of nosema infection. 5 A key finding. 8 Next. 9 citations and notes. 9   The Nosema Problem: Part 2 The Enigma of Nosema Randy Oliver ScientificBeekeeping.com First published in ABJ July 2019 I’ve recently read Raquel Martin-Hernandez’s excellent […]

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]]> The Nosema Problem: Part 1 – It’s “Common Knowledge” that Nosema Causes Dysentery… But is it Actually True? https://scientificbeekeeping.com/its-common-knowledge-that-nosema-causes-dysentery-but-is-it-actually-true/ Thu, 18 Jul 2019 22:58:54 +0000 https://scientificbeekeeping.com/?p=5073 Contents What is dysentery?. 4 So why does everyone think that nosema causes dysentery?. 7 The sad part. 7 Nosema apparently does not cause dysentery. 7 next. 9 citations and notes. 9   The Nosema Problem: Part 1 It’s “Common Knowledge” that Nosema Causes Dysentery… But is it Actually True? First published in ABJ May […]

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