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   Knott, M. P. 1950. Wildlife and its dependence on seed production. In: Iowa State Apiarist Report 1949, Pp. 139-140.  
   Knowles, R. P. 1943.  The role of insects, weather conditions and plant character in seed setting of alfalfa.  Scin. Agricul. 24: 29-50.
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   Knox, D. A., H. Shimanuki & D. M. Caron, 1976. Ethylene oxide plus oxytetracycline for the control of American foulbrood in honey bees. Journal of Economic Entomology 69(5): 606-608. 
   Knox, D. A., H. Shimanuki & D. M. Caron, 1977. Susceptibility of Bacillus larvae to ethylene oxide and tetracycline HCl. Journal of Apicultural Research 16(4): 201-203.
   Knox, D. A., H. Shimanuki & E. W. Herbert,  1971.  Diet and longevity of adult honey bees.  Journal of Economic Entomology 64(6): 1415-1416.
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   Knuth, P. 1908.  Handbook of flower pollination, based upon Hermann Muller’s work.  The fertilization of flowers by insects. Volume II, 703 pages. Oxford Clarendon Press, London. [Translation from German by J. A. Alinsworth Davis.]
   Knuth, P. 1909. Handbook of flower pollination, based upon Hermann Müller's work. The fertilization of flowers by insects. Volume III. Observations on flower pollination made in Europe and the arctic regions on species belonging to the natural orders, Goodenovieae to Cycadeae. Oxford University Press, London, UK.

Koc, U. A. & M. Karacaoglu, 2004. The effects of rearing season on the quality of queen honeybees (Apis mellifera L.) raised under the Aegean region. Journal of Beekeeping in Turkey 7(4): 34-37.

   Kochansky, J. 2000. Analysis of oxytetracycline in extender patties. Apidologie 31(4): 517-524.
   Kochansky, J. 2002. Effect of a sterol inhibitor incorporated into comb foundation on bees and wax moths. American Bee Journal 142(6): 446-447.
   Kochansky, J., D. A. Knox, M. Feldlaufer & J. S. Pettis, 2001. Screening alternative antibiotics against oxytetracycline-susceptible and -resistant Paenibacillus larvae. Apidologie 32(3):  215-222.
   Kochansky, J. & M. Nasr, 2004. Laboratory studies on the photostability of fumagillin, the active ingredient of Fumidil B1. Apidologie 35: 301-310.
   Kochansky, J. & H. Shimanuki, 1999. Development of a gel formulation of formic acid for control of parasitic mites of honey bees. Journal of Agricultural and Food Chemistry 47(9): 3850-3853.
   Kochansky, J., K. Wilzer & M. Feldlaufer, 2001.  Comparison of the transfer of coumaphos from beeswax into syrup and honey. Apidologie 32(2): 119-126.
   Kocourek, M.  1966.  Andrena, in Prodromus der Hymenopteren der Tschechoslowakei, pars 9, Apoidea 1: 1-122, 1 map. Národní Muzeum, Praha.
   Kocourek, M. 1998. Beiträge zur Kenntnis der Gattung Ceratina in der Westpaläarktis und dem turkestanischen Becken (Hymenoptera, Apidae). Entomofauna: Zeitschrift für Entomologie 19(34): 533-548. [In German].
   Koedam, D. 1999. Production of queens, workers and males in the stingless bee Melipona favosa (Apidae: Meliponinae): patterns in time and space. Netherlands Journal of Zoology 49(4): 289-302.
   Koedam, D., M. Brone & P. G. M. van Tienen, 1997. The regulation of worker-oviposition in the stingless bee Trigona (Tetragonisca ) angustula Illiger (Apidae, Meliponinae). Insectes Sociaux 44(3): 229-244.
   Koedam, D., H. Jungnickel, J. Tentschert, G. R. Jones & E. D. Morgan, 2002. Production of wax by virgin queens of the stingless bee Melipona bicolor (Apidae, Meliponinae). Insectes Sociaux 49(3): 229-233.
   Koedam, D., P. Velthausz, T. Krift, M. R. Dohmen, M. J. Sommeijer, 1996. Morphology of reproductive and trophic eggs and their controlled release by workers in Trigona (Tetragonisca ) angustula Illiger (Apidae, Meliponinae). Physiological Entomology 21(4): 289-296.
   Koenig, J. P.. G. M. Boush & E. H. Erickson Jr., 1986a. Effect of type of brood comb on chalk brood disease in honey bee colonies. Journal of Apicultural Research 25(1): 58-62. 
   Koenig, J. P., G. M. Boush & E. H. Erickson Jr., 1986b. Old comb may contribute to chalk-brood disease. American Bee Journal 126(3): 191-192.
   Koenig, J. P., G. M. Boush & E. H. Erickson Jr., 1987a. Effects of spore introduction and ratio of adult bees to brood on chalkbrood disease in honeybee colonies. Journal of Apicultural Research 26(3): 191-195. 
   Koenig, J. P., G. M. Boush & E. H. Erickson Jr., 1987b. Isolation of the chalkbrood pathogen, Ascosphaera apis, from honey bee (Apis mellifera) surfaces, pollen loads, and a water source. American Bee Journal 127(8): 581-583. 
   Koenig, J. P., G. M. Boush & E. H. Erickson Jr., 1987c. Effects of spore introduction and ratio of adult bees to brood on chalkbrood disease in honeybee colonies. Journal of Apicultural Research 26(3): 191-195.
   Koeniger, G. 1976. The influence of copulation on the beginning of oviposition in the queen honey bee.  Apis mellifera L.  Apidologie 7(4): 343-355.
   Koeniger, G. 1988. Mating behavior of honey bees.    Pp. 167-172. In: Needham, G.R. (ed.), Africanized honey bees and bee mites. E. Horwood, Chichester, West Sussex, England.
   Koeniger, G. 2005. The neglected gender - males in bees. Apidologie 36(2): 143-144.
   Koeniger, G., N. Koeniger, D. L. Anderson, C. Lekprayoon & S. Tingek, 2001.  Mites from debris and sealed brood cells of Apis dorsata colonies in Sabah (Borneo) Malaysia, including a new haplotype of Varroa jacobsoni.  Apidologie 32: 41-50.
   Koeniger,  G.,  N. Koeniger, D. L. Anderson, C. Lekprayoon & S. Tingek, 2002. Mites from debris and sealed brood cells of Apis dorsata colonies in Sabah (Borneo) Malaysia, including a new haplotype of Varroa jacobsoni. Apidologie 33(1): 15-24.
   Koeniger, G., N. Koeniger & M. Fabritius, 1978. Neue Beobachtungen uber die Paarung bei der Honigbiene. Allgemeine Deutsche Imkerzeitung 12(9): 257. 
   Koeniger, G., N. Koeniger & M. Fabritius, 1979. Some detailed observations of mating in the honeybee. Bee World 60(2): 53-57.
   Koeniger, G., N. Koeniger, S. Tingek & A. Kelitu, 2000.  Mating flights and sperm transfer in the dwarf honeybee Apis andreniformis (Smith, 1858).  Apidologie 31(2): 301-312.
   Koeniger, G., N. Koeniger, S. Tingek & M. Phiancharoen, 2005. Variance in spermatozoa number among Apis dorsata drones and among Apis mellifera drones. Apidologie 36(2): 279-284.
   Koeniger, G., M. Mardan & F. Ruttner, 1990. Male reproductive organs of Apis dorsata. Apidologie 21(2): 161-164.
   Koeniger, N. 1969. Uber die Eiablage bei der Honigbiene. Pp. 115-120. In: Proceedings of the 6th International Union for the Study of Social Insects. 
   Koeniger, N. 1973. Unjustified fear and control of hornets. Allgemeine Deutsche Imkerzeitung 7(4): 86-88.  
   Koeniger, N. 1976a. Die vier Arten der Honigbiene. Allgemeine Deutsche Imkerzeitung 10(3): 89, 91-92. 
   Koeniger, N. 1976b. Interspecific competition between Apis florea and Apis mellifera in the tropics. Bee World 57(3): 110-112. 
   Koeniger, N. 1976c. Neue aspekte der Phylogenie innerhalb der Gattung Apis. Apidologie 7(4): 357-366.  
   Koeniger, N. 1977. Signals from brood in social Hymenoptera. Pp. 280-282. In: Proceedings of the 8th International Congress of the International Union for the Study of Social Insects. 
   Koeniger, N. 1978. The warming of honeybee (Apis mellifera L.) brood.  Apidologie 9(4): 305-320. 
   Koeniger, N. 1979. Food competition among four sympatric species of apini in Sri Lanka (Apis dorsata, Apis cerana, Apis Florea and Trigona iridipennis). Apicultura em Clima Quente 1978: 130-131.  
   Koeniger, N. 1981. Importance of drone brood for the multiplication of the Varroa jacobsoni mite. Allgemeine Deutsche Imkerzeitung 15(10): 303-304.  
   Koeniger, N. 1982a. Drone brood as a Varroa jacobsoni trap. Allgemeine Deutsche Imkerzeitung 16(3): 77.   
   Koeniger, N. 1982b. Honeybee drone brood as a trap for Varroa. Die Biene 118(3): 103-104. 
   Koeniger, N. 1982c. Varroatose-Bekampfungsmassnahmen. Imkerfreund 37(3): 81. 
   Koeniger, N. 1982d. Interactions among the four species of the genus Apis. Pp. 59-64. In: M. D. Breed,  C. D. Michener & H. E. Evans, (eds.), The Biology of Social Insects. Proceedings of the 9th Congress of the International Union for the Study of Social Insects.  Boulder Colorado & Sons.  
   Koeniger, N. 1984a. Brood care and recognition of pupae in the honeybee (Apis mellifera) and the hornet (Vespa crabro). Pp. 267-282. In: 12th Symposium on Insect Communities, September 7-9, 1983, London. 
   Koeniger, N. 1984b. Die naturliche Entstehung der Verwandschaftsverhaltnisse im Bienenvolk. Imkerfreund 39(8): 322-324. 
   Koeniger, N. & M. Chmielewski, 1986. A new approach to chemotherapy of varroatosis. Pp. 231-236. In: R. Cavalloro (ed.), European research on varroatosis control : proceedings of a meeting of the EC Experts' Group, Bad Homburg, 15-17 October, 1986. 
   Koeniger, N. & S. Fuchs, 1972. Kommunikative Schallerzeugung von Apis cerana Fabr. im Bienenvolk. Naturwissenschaften 59(4): 169. 
   Koeniger, N. & S. Fuchs, 1975. Zur Kolonieverteidigung der asiatischen Honigbienen (Apis cerana, A. dorsata & A. florea). Z. Tierpsychol 37(1): 99-106.
   Koeniger, N., S. Fuchs, 1988a. Control of Varroa jacobsoni: current status and developments. Pp. 360-369. In: Needham, G. R. (ed.), Africanized honey bees and bee mites. E. Horwood, Chichester, West Sussex, England.
   Koeniger, N. & S. Fuchs, 1988b. Control of Varroa jacobsoni Oud. In honey bee colonies containing sealed brood cells. Apidologie 19(2): 117-130.
   Koeniger, N.  & S. Fuchs, 1989. Eleven years with Varroa - experiences, retrospects and prospects. Bee World 70(4): 148-159. 
   Koeniger, N., A. Klepsch & V. Maul, 1983a. Use of lactic acid for the control of Varroa jacobsoni in honeybees.  Allgemeine Deutsche Imkerzeitung 17(7): 209-211. 
   Koeniger, N., A. Kelpsch & V. Maul, 1983b. Lactic acid against Varroa jacobsoni. Imkerfreund 38(7): 266-267.
   Koeniger, N. & G. Koeniger, 1980.  Observations and experiments on migration and dance communication of Apis dorsata in Sri Lanka. Journal of Apicultural Research 19(1): 21–34.
   Koeniger, N. & G. Koeniger, 1983. Observations on mites of the Asian honeybee species (Apis cerana, Apis dorsata, Apis florea). Apidologie 14(3): 197-204. 
   Koeniger, N. & G. Koeniger, 1984. Change of host by parasitic mites in Asia after a new honeybee species is introduced. Pp. 160-162 In: Proceedings of the 3rd  International Conference on Apiculture in Tropical Climates, Nairobi, Kenya, 5-9 November, 1984. [Sponsored by Government of Kenya & International Bee Research Association. 
   Koeniger, N. & G. Koeniger, 2000. Reproductive isolation among species of the genus Apis. Apidologie 31(2): 313+
   Koeniger, N., G. Koeniger, M. Gries & S. Tingek, 2005.  Drone competition at drone congregation areas in four Apis species. Apidologie 36(2): 211-222.
   Koeniger, N., G. Koeniger, R. K. W. Punchihewa, M. Fabritius, 1982. Observations and experiments on dance communication in Apis florea in Sri Lanka. Journal of Apicultural Research 21(1): 45-52. 
   Koeniger, N., G. Koeniger & N. H. P. Wijayagunasekara, 1981. Observations on the adaption of Varroa jacobsoni to its natural host Apis cerana in Sri Lanka. Apidologie 12(1): 37-40.  
   Koeniger, N. & N. Muzaffar, 1988. Lifespan of the parasitic honeybee mite, Tropilaelaps clareae, on Apis cerana, A. dorsata and A. mellifera. Journal of Apicultural Research 27(4): 207-212. 
   Koeniger, N., J. Schmidt, J. Wilde, J. Kefuss, J. Ducos de Lahitte, 1995. Versuche zur Varroatosetoleranz von Bienen aus Uruqvay in Europa. [Testing bees from Uruguay for tolerance against varroatosis in Europe].  Pszczeln. Zeszyt. Nauk. 39(1): 121-131. [In German with English abstract].
   Koeniger, N. & A. Schulz, 1980. Versuche zur biologischen Therapie der Varroatose durch eine Kontrolle der frischgeschlupften Bienen. Apidologie 11(2): 105-112.  
   Koeniger, N. & H. J. Veith, 1983. Identification of a triglyceride (Glyceryl-1,2-dioleate-3-palmitate) as a brood pheromone of the honey bee (Apis mellifera L.). Apidologie 14(1): 59.
   Koeniger, N. & H. J. Veith, 1983. Glyceryl-1,2-dioleate-3-palmitate, a brood pheromone of the honey bee (Apis mellifera L.). Experimentia 39(9): 1051-1052.  
   Koeniger, N. & G. Vorwohl, 1979.Competition for food among four sympatric species of apini in Sri Lanka (Apis dorsata, Apis cerana, Apis florea and Trigona iridipennis). Journal of Apicultural Research 18(2): 95-109. 
   Koeniger, N., J. Weiss & U. Maschwitz, 1979. Alarm pheromones of the sting in the genus Apis. Journal of Insect Physiology 25(6): 467-467. 
   Koeniger, N. & H. N. P. Wijayagunasekera,  1976. Time of drone flight in the three Asiatic honeybee species. (Apis cerana, Apis florea, Apis dorsata). Journal of Apicultural Research 15(2): 67-71.
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Koller, N. & S. Breittenmoser, 2003. Ecology and environment. Effects of moving on local fauna. Bulletin Technique Apicole (France) 30(4): 173-175.

   Kolmes, S. A. 1984. A quantitative comparison of observational methodologies for studies of worker honeybees. Journal of Apicultural Research 23(4); 189-198.
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   Kolmes, S. A. 1990a. Measuring  stinging  tendencies  of  honey  bees.  American Bee Journal 130(3): 183-184.
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   Kolmes, S. A., M. L. Winston & L. A. Fergusson, 1989. The division of labor among worker honey bees (Hymenoptera: Apidae): the effects of multiple patrilines. Journal of the Kansas Entomological Society 62(1): 80-95.
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Komeili, A. B. & J. T. Ambrose, 1990. Biology, ecology and damage of tracheal mites on honey bees (Apis mellifera). American Bee Journal 130(3): 193-199.

Komeili, A. B. & J. T. Ambrose, 1991. Electron microscope studies of the tracheae and flight muscles of noninfested, Acarapis woodi infested, and crawling honey bees (Apis mellifera). American Bee Journal 131(4): 253-257.

Komeili, A. B. & J. T. Ambrose, 1993. Migration of the honey bee tracheal mite, Acarapis woodi (Acari: Tarsonemidae) during fall in North Carolina. American Bee Journal 133(1): 61-63.

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