scholarly journals Selection of lines of the honeybee, Apis mellifera, resistant to American foulbrood through topical application of Bacillus larvae spores to young larvae

1964 ◽  
Author(s):  
Terrell Rudolph Hoage
Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 525
Author(s):  
Poonnawat Panjad ◽  
Rujipas Yongsawas ◽  
Chainarong Sinpoo ◽  
Chonthicha Pakwan ◽  
Phakamas Subta ◽  
...  

Honeybees, Apis mellifera, are important pollinators of many economically important crops. However, one of the reasons for their decline is pathogenic infection. Nosema disease and American foulbrood (AFB) disease are the most common bee pathogens that propagate in the gut of honeybees. This study investigated the impact of gut-propagating pathogens, including Nosema ceranae and Paenibacillus larvae, on bacterial communities in the gut of A. mellifera using 454-pyrosequencing. Pyrosequencing results showed that N. ceranae was implicated in the elimination of Serratia and the dramatic increase in Snodgrassella and Bartonella in adult bees’ guts, while bacterial communities of P. larvae-infected larvae were not affected by the infection. The results indicated that only N. ceranae had an impact on some core bacteria in the gut of A. mellifera through increasing core gut bacteria, therefore leading to the induction of dysbiosis in the bees’ gut.


2015 ◽  
Vol 30 (4) ◽  
pp. 209-216 ◽  
Author(s):  
Goran Andric ◽  
Marijana Prazic-Golic ◽  
Petar Kljajic

Laboratory bioassays were conducted to detect possible alteration in susceptibility of two field Tribolium castaneum (Herbst) populations (sampled in a warehouse in Nikinci and a silo in Jakovo) to dichlorvos, malathion, chlorpyrifos-methyl, pirimiphos-methyl, deltamethrin and bifenthrin after previous selection with the LD80 of pirimiphos-methyl and deltamethrin. Data from the topical application bioassays show that chlorpyrifos-methyl was the most toxic insecticide to T. castaneum adults of the Nikinci population selected with pirimiphosmethyl and deltamethrin, while malathion was the weakest, and both selection procedures changed/reduced significantly only the toxicity of deltamethrin and bifenthrin, increasing their resistance ratios (RR) at the LD50 from 1.1 to 1.8 (bifenthrin) and from 0.9 to 2.2 (deltamethrin). Deltamethrin was the most toxic insecticide for Jakovo adults selected with the LD80 of pirimiphosmethyl, while malathion was again the least toxic. Selection of that population had no effect on insecticide toxicity, except of malathion, which had a rise in RR at the LD50 from 26.0 to 29.8.


2002 ◽  
Vol 41 (3-4) ◽  
pp. 97-100 ◽  
Author(s):  
P Elzen ◽  
D Westervelt ◽  
D Causey ◽  
R Rivera ◽  
J Baxter ◽  
...  

2015 ◽  
Vol 48 (2) ◽  
pp. 99-108 ◽  
Author(s):  
H.F. Abou-Shaara

AbstractThere are various plants with potential feeding importance to honey bee, Apis mellifera, colonies as source of pollen, nectar or both. Selection of suitable regions for apiaries mainly depends on the availability of honey bee plants in the apiary region. Identifying honey bee plants in specific region is very essential for honey and pollen production from honey bee colonies. Lacking the information about the beneficial plants for honey bees including; plant name, flowering time and potential benefit to honey bee colonies could be considered as a limitation for beekeeping development. So far honey bee plants are not well studied in Egypt. This review paper presents potential honey bee plants in Egypt using the available publications. The studies on honey bee plants in Egypt were also reviewed. This work can be considered as a guide for beekeepers and researchers. Moreover, the presented plants here can be used in comparing honey bee plants of Egypt with other countries to get a better understanding of honey bee flora. More detailed investigations on honey bee plants are strongly required to be done at all Egyptian Governorates


2020 ◽  
Vol 122 ◽  
pp. 104040
Author(s):  
Sujin Lee ◽  
Sooho Lim ◽  
Yong-Soo Choi ◽  
Myeong-lyeol Lee ◽  
Hyung Wook Kwon

Apidologie ◽  
2007 ◽  
Vol 38 (3) ◽  
pp. 281-288 ◽  
Author(s):  
Dieter Behrens ◽  
Eva Forsgren ◽  
Ingemar Fries ◽  
Robin F.A. Moritz

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