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HEBREW UNIVERSITY OF JERUSALEM
FACULTY OF AGRICULTURAL, FOOD AND ENVIRONMENTAL QUALITY SCIENCES
(FAFEQS)
76100 REHOVOT, ISRAEL
Professor Yaacov Lensky - Bee Research Laboratory
Report for 1976-1997 -
TABLE OF CONTENTS
- Introduction
- Staff
- Teaching
- Graduate research students
- Undergraduate research trainees
- Visiting research students and postdoctorals
- Visiting scientists
- Research support
- Research facilities
- Collaborators at the Hebrew University of Jerusalem and other Scientific Institutions
- Domestic and international activities
- Publications
- Research reports
- Differentiation of female honeybee larvae to queens
- Swarming; construction of queen swarming cups and cells
- Reproduction; mating; pheromones of queens and drones
- Thermoregulation at high ambient temperatures
- Defensive behavior of bee colonies; Alarm pheromones of workers and queens
- Exocrine glands: structure and secretory products
- Proteins of body surface and compartments, haemolymph and vitellogenins
- Attraction of honeybees to flowers; pollination
- Control of Varroa jacobsoni
7. Visiting Scientists
(in alphabetical order)
Rü veyde Akbay |
Visiting Professor Head, Dept. Small Farm Animals Faculty of Agriculture Ankara University Ankara, Turkey |
August 1979 |
Raymond Borneck |
Visiting Scholar President of Apimondia Rome, Italy |
November 1988 |
Trevor Bryant |
Director, Alphabees Te Puke, New Zealand |
July 1988 |
Pierre Cassier |
Visiting Professor Directeur du Laboratoire d'Evolution des Etres Organisé s Université P. et M. Curie (Paris VI) Paris, France |
November-December 1978 March-April 1980 January 1985 March-April 1986 November 1988 November 1991 May 1996 |
Rémy Chauvin |
Visiting Professor Directeur du Laboratoire de Sociologie Animale, Université de Strassbourg, and Université René Descartes (Paris V) Paris, France |
December 1971 |
Robin M. Crewe |
Visiting Professor Chairman, Zoology Dept. University of Witwatersrand Johannesburg South Africa |
August 1984 |
Roger Darchen |
Visiting Scholar Station des Recherches Apicoles Centre National de la Recherche Scientifique (CNRS) and Institut National de la Recherche Agronomique (INRA) Bures-sur-Yvette, France |
March-September 1962 |
Wilhelm Drescher |
Visiting Professor Director, Institut fü r Landwirschaftliche Zoologie und Bienenkunde der Universitä t Bonn, Germany |
June 1987 June 1989 |
Michel Gonnet |
Visiting Scholar Station Expé rimentale d'Apiculture Institut National de la Recherche Agronomique (INRA) Montfavet, France |
July 1977 May 1996 |
Osman Kaftanog lu |
Visiting Professor Bee Research Laboratory Dept. Animal Sciences Faculty of Agriculture Ç ukurova University Adana, Turkey |
May 1996 |
Pierre Lavie |
Visiting Scholar Station Expé rimentale d'Apiculture Institut National de la Recherche Agronomique (INRA) Montfavet, France |
August 1966 July 1977 |
Marshall D. Levin |
Lady Davis Visiting Professor, Director Carl Hayden Bee Research Center US Dept. Agriculture, ARS Tucson, Arizona, USA |
July 1984 1987-1988 |
Mitsuo Matsuka |
Visiting Professor Institute of Honeybee Science Tamagawa University, Machida-Shi Tokyo, Japan |
August 1987 |
Miriam Peterson |
FAO Consultant on Beekeeping Rome, Italy |
May 1985 |
William Ramirez |
Visiting Professor Dept. Entomology and Apiculture Facultad de Agronomia Universitad de Costa Rica Costa Rica |
November 1988 |
Hachiro Shimanuki |
Visiting Scholar Research Leader, Bioenvironmental Bee Laboratory, US Dept. Agriculture, ARS, Beltsville, Maryland USA |
April 1988 |
Mark Winston |
Fulbright Fellow Simon Frazer University, Burnaby British Columbia, Canada |
September 1986-June 1987 |
8.
Research Support
Research at the Center was supported by grants from the Israel Academy of Sciences and Humanities, Israel Ministry of Agriculture, Hazera and Zeraim Gedera Seed Companies, B. Triwaks Fund, Central Research Fund and E.D. Bergman Fund of the Hebrew University of Jerusalem, US-Israel Binational Science Foundation, Binational US-Israel Agricultural Research and Development Fund (BARD), and German-Israel Agricultural Agreement for Developming Countries (GIARA).
Research Fellowships and Awards were offered by the Ministè re des Affaires Etrangè res, France, and Université P. et M. Curie, Paris, France, as well as by the following Foundations: Benjamin and Gavriel Triwaks, Lady Davis, Fulbright, David Ben-Gurion, Reuven Lerer, Zorik and Ehud Lev, Leon Americus, Israeli Beekeepers' Association and postdoctoral fellowships by the Dean of the FAFEQS.
9. Research
Facilities
The Triwaks Bee Research Center is located on the Campus of the Faculty of Agricultural, Food and Environmental Quality Sciences (FAFEQS) Rehovot, and its premises are comprised of a research laboratory, a workshop, and an experimental apiary of 30 bee colonies.
The laboratory is geared and equipped for separation of macromolecules (LKB electrophoreses and fraction collectors, Perkin-Elmer Spectrophotometer, HPLC, column chromatography, etc.), extraction and separation of pheromonal secretions (GLC), and their chemical characterization by GLC-MS is carried out by Dr Bilkis of the Interdepartmental Equipment Services on the campus. The ultrastructure of secretory glands is carried out by Prof. P. Cassier, Université Pierre et Marie Curie, Paris. The laboratory is also equipped for histology (Leitz micromanipulator, oscilloscope, microtomes, stereoscopic and optical microscopes, including photographic cameras), and general behavior studies (observation hives and cages, recorders, incubators, and meteorological apparatus).
10.
Collaborators at the Hebrew University of Jerusalem and Other Scientific Institutions
Itzhak Bilkis |
Institute of Biochemistry, Food Science and
Nutrition FAFEQS The Hebrew University of Jerusalem Rehovot |
Pierre Cassier |
Directeur du Laboratoire d'Evolution des Etres
Organisé s Université Pierre et Marie Curie (Paris VI) Paris, France |
Ré my Chauvin |
Directeur du Laboratoire de Sociologie Animale Université René Descartes (Paris V) Paris, France |
Roger Darchen |
Centre National de la Recherche Scientifique
(CNRS) and Institut National de la Recherche Agronomique (INRA) Station de Recherches Apicoles Bures-sur-Yvette, and Station Biologique, Les Eyzies de Tayac France |
Wilhelm Drescher |
Director, Institut fü
r Landwirschaftliche Zoologie und Bienenkunde der Universitä t Bonn, Germany |
Avraham Fahn |
Dept. Botany, Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem |
Marshall Levin |
Director, Carl Hayden Bee Research Center US Dept. Agriculture, ARS Tucson, Arizona, U.S.A. |
Yitzhak Mahrer |
Dept. Soil and Water Sciences FAFEQS The Hebrew University of Jerusalem Rehovot |
Haim D. Rabinowitch |
Dept. Field Crops, Vegetables and Genetics FAFEQS The Hebrew University of Jerusalem Rehovot |
Hachiro Shimanuki |
Research Leader, Bioenvironmental Bee Laboratory, US Dept. Agriculture, ARS Beltsville, Maryland USA |
David Sklan |
Dept. Animal Sciences FAQEQS The Hebrew University of Jerusalem Rehovot |
Arie Teeshbee |
Dept. Organic Chemistry Weizman Institute of Science Rehovot |
Shmuel Wolf |
Dept. Field Crops, Vegetables and Genetics FAFEQS The Hebrew University of Jerusalem Rehovot |
11. Domestic and International Activities
The Agreement for Scientific Cooperation between Université Pierre et Marie Curie, Paris, and The Hebrew University of Jerusalem
The Report for 1979-1994 was submitted to both Universities by Prof. Pierre Cassier and Prof. Yaacov Lensky. It summarizes the academic exchanges, research topics, theses submitted at either of the two Universities and common publications in scientific journals. Academic exchanges included faculty and graduate students who received their training both in Paris and Rehovot.
Teaching activities
Prof. Pierre Cassier, Visiting Professor at the Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot.
November-December 1978. Course: "Biology of the Honeybee" - The female genital organs of Insects. Oogenesis and its endocrine control . Research seminar: The Corpora Allata of Insects.
March-April 1980. Course: "Beekeeping and hive products" - The organization and physiology of Insect reproductive organs. Research seminar: The integument of Acrididae, structure and morphogenesis, glandular units.
March-April 1986. Course: "Beekeeping and hive products" - The fine structure of the mandibular glands of queen and worker honeybees in relation to their pheromonal secretions.
November 1988. Course: "Biology of the Honeybee" - Alarm pheromones and their glandular origin in queen and worker honeybees.
November 1991. Course: "Biology of the Honeybee" - The pheromones secreted by Nassanof glands in workers and by Renner glands in queens.
May 1996. Course: "Beekeeeping and hive products" - The pheromonal control of queen swarming cell construction.
Prof. Y. Lensky, Visiting Professor at the Université Pierre et Marie Curie, Paris.
1977-1978. Professeur Associé , contingent national. Teaching students of: 4e Cycle de Biologie des Insectes - Biologie de l'Abeille et Apiculture.
1981-1982. Professeur Associé , contingent national. Teaching students of: a) 4e Cycle de Biologie des Insectes - Biologie de l'Abeille et Apiculture; b) Diplô me des é tudes approfondies (DEA) d'entomologie - Les phé romones, mé thodes d'é tudes. Nature et rô le chez les Insectes Sociaux.
February 1985. Professeur invité , DEA d'é cologie - Les abeilles et l'é cologie chimique.
October-November 1987. Professeur invité , DEA d'é cologie - Acariens parasites d'Apis mellifera: Contrô le des populations à l'aide de fluvalinate.
September-October 1989. Professeur invité , DEA d'é cologie - La communication chimique et la ré gulation d'essaimage des colonies d'Abeilles.
January 1994-February 1995. Visiting professor. Research of honeybee pheromones.
Research topics
Summary
The research collaboration between the two Universities during the years 1979-1994 yielded six theses, 30 publications in scientific journals, and 10 research papers presented at congresses and colloquia.
Giara Conference: Varroa mites in Thailand
Rehovot, June 18-23, 1989.
Participants: Thailand - Mr. Narong Minandana, Mr. Prayong Jeungusook, Mr. Udom Jirasavetaku
Germany
- Prof. Wilhelm Drescher, Mr. Werner Rath, Mr. Ralf Buechler, Mr. Otto BoeckingIsrael - Prof. Yaacov Lensky, Prof. Uri Gerson, Mr. Yeshayahu Stern
12.
Publications
12a. Bee Research Laboratory Publications: 1958-1975
Lensky, Y. (1958) Some factors affecting the temperature inside hives in hot climates. Bee World, 39: 205-208.
Harpaz, I. and Lensky, Y. (1959) Experiments on bee repellents. Bee World, 40: 146-153.
Lensky, Y. (1961) Les é changes de nourriture liquide entre Abeilles aux tempé ratures é levé es. Insectes Sociaux, 8: 361-368.
Fresnaye, J. et Lensky, Y. (1961) Mé thodes d'appré ciation des surfaces de couvain dans les colonies d'Abeilles. Annales de l'Abeille, 4: 369-376.
Lensky, Y. et Darchen, R. (1962) Quelques observations sur la construction des cellules royales en pré sence de plusieures reines d'Abeille (Apis mellifica L.). Comptes Rendues des Sé ances de l'Acadé mie des Sciences (Paris), 225: 1778-1780.
Darchen, R. et Lensky, Y. (1962) Les socié té s polygynes de reines vierges d'Abeille (Apis mellifica L.). Comptes Rendues des Sé ances de l'Acadé mie des Sciences (Paris), 255: 2300-2302.
Lensky, Y. et Darchen, R. (1963) Etude pré liminaire des facteurs favorisant la cré ation de societes polygynes d'Apis mellifica. Annales de l'Abeille, 6: 69-73.
Darchen, R. et Lensky, Y. (1963) Quelques facteurs soulevé s par la cré ation de socié té s polygynes d'Abeille. Insectes Sociaux, 10: 337-358.
Lensky, Y. (1964) Comportement d'une colonie d'Abeilles à des tempé ratures extrê mes. Journal of Insect Physiology, 10: 1-12.
Lensky, Y. (1964) Variations glycé miques du sang des Abeilles soumises à une chaleur extrê me. Journal of Insect Physiology, 10: 279-282.
Lensky, Y. (1964) Les ré gulations thermiques dans la ruche en é té . Annales de l'Abeille, 7: 23-45.
Lensky, Y. (1964) Ré sistance des Abeilles à des tempé ratures é levé es. Insectes Sociaux, 11: 293-300.
Lensky, Y. (1964) L'é conomie des liquides chez les Abeilles aux tempé ratures é levé es. Insectes Sociaux, 11: 207-222.
Lensky, Y. and Golan, Y. (1966) Honeybee populations and honey production during drought years in a subtropical climate. Scripta Hierosolymitana, 18: 27-42.
Lensky, Y. and Schindler, H. (1967) Motility and reversible inactivation of honeybee spermatozoa in vivo and in vitro. Annales de l'Abeille, 20: 5-16.
Lensky, Y. (1968) L'hé molymphe de l'Abeille. In: "Traité de Biologie de l'Abeille", (Editeur: R. Chauvin), Tome I, pp. 475-497. Masson, Paris.
Lensky, Y. (1968) L'appareil circulatoire et les annexes. In: "Traité de Biologie de l'Abeille", (Editeur: R. Chauvin), Tome I, pp. 498-514. Masson, Paris.
Lensky, Y. (1968) La cytologie de l'hé molymphe de l'Abeille. In: ."Traité de Biologie de l'Abeille", (Editeur: R. Chauvin), Tome I, pp. 516-519. Masson, Paris.
Lensky, Y. and Golan, Y. (1968) Evolution of food and brood areas in a newly hived honeybee colony. Journal of Apicultural Research, 7: 129-133.
Alumot, E., Lensky, Y. and Holstein, P. (1969) Sugars and trehalase in the reproductive organs and haemolymph of the queen and drone honeybees (Apis mellifera L.). Comparative Biochemistry and Physiology, 30: 569-575.
Lensky, Y. and Alumot, E. (1969) Proteins in the spermatheca and haemolymph of the queen bee (Apis mellifera L.). Comparative Biochemistry and Physiology, 30: 569-575.
Katz, M. and Lensky, Y. (1970) Gas chromatographic analysis of ecdysone. Experientia, 26: 1043.
Lensky, Y., Cohen, C. and Schneiderman, H.A. (1970) The origin, distribution and fate of the moulting fluid proteins of the cecropia silkworm. Biological Bulletin (Woods Hole), 139: 277-295.
Lensky, Y., Darchen, R. et Levy, R. (1970) L'aggressivité des reines entre-elles et des ouvriè res vis-à -vis des reines lors de la cré ation des socié té s polygynes d'Apis mellifica L. Revue du Comportement Animal (Paris), 4: 50-62.
Lensky, Y. (1971) Rearing of queen larvae in queenright colonies. Journal of Apicultural Research, 10: 99-101.
Alumot, E., Lensky, Y. and Schindler, H. (1971) I. Separation of proteins in the epididymal fluid of the ram. Journal of Reproduction and Fertility, 25: 349-353.
Lensky, Y. (1971a) Haemolymph proteins of the honeybee. I. Separation and characterization of of haemolymph proteins of worker larvae. Comparative Biochemistry and Physiology, 39B: 335-341.
Lensky, Y. (1971b) Haemolymph proteins of the honeybee. II. Differentiation during the development of bee workers. Comparative Biochemistry and Physiology, 39B: 335-341.
Lensky, Y. and Kalinsky, B. (1971) Haemolymph proteins of the honeybee. III. Presence of drones' haemolymph proteins in the reproductive organs. Israel Journal of Entomology, 6: 81-96.
Lensky, Y. and Rakover, Y. (1971) Resorption of moulting fluid proteins during the ecdysis of the honeybee. Comparative Biochemistry and Physiology, 41B: 521-531.
Lensky, Y. and Blum, M. (1974) Chirality in insect chemoreceptors. Life Sciences, 14: 2045-2049.
Sanford, M.T., Dietz, A. and Lensky, Y. (1975) Experimental introduction and acceptance of aged virgin honeybee queens. Journal of Georgia Entomological Society, 10: 291-296.
Dietz, A., Sanford, M.T. and Lensky, Y. (1975) Mating success of virgin queen honeybees of different ages. Journal of Georgia Entomological Society, 10: 296-300.
PUBLICATIONS IN HEBREW
Lensky, Y. (1959) Overheating of bee hives during summer. Yalkoot Hamikhveret, 4: 2-4.
Harpaz, I. and Lensky, Y (1960) Bee repellents. Yalkoot Hamikhveret, 5: 135-140
Lensky, Y. (1963) Detection of honey adulterations. Yalkoot Hamikhveret, 8: 3-11.
Lensky, Y. (1964) Thermoregulative behavior of honeybees during summer. Yalkoot Hamikhveret, 9: 165-171.
Lensky, Y., Stern, Y. and Kalinsky, B. (1973) The efficacy of the honeybee (Apis mellifera L.) in alfalfa pollination. Hassadeh, 52: 1395 1400.
Lensky, Y. and Hochberg, R. (1974) The effect of bee colony management on the incidence of swarming and honey yields. Hassadeh, 54: 285-289.
Lensky, Y. and Seifert, H. (1975) Factors affecting the construction of swarming queen cells in honeybee (Apis mellifera L.) colonies. Hassadeh, 55: 632-636.
Levinsohn, M., Skolnik, H. and Lensky, Y. (1975) Survival of virgin and mated honeybee (Apis mellifera L.) queens in bank colonies. Hassadeh, 55: 1168-1169.
Skolnik, H., Lensky, Y. and Goren, G. (1975) The effect of juvenile hormone on the egg-laying rate of mated honeybee queens. Hassadeh, 55: 1535-1537.
12b. Triwaks Bee Research Center Publications: 1976-1997
Asencot, M. and Lensky, Y. (1976) The effect of sugars and juvenile hormone on the differentiation of female honeybee larvae (Apis mellifera L.) to queens. Life Sciences, 18: 693-700.
Boch, R. and Lensky, Y. (1976) Pheromonal control of queen rearing in honeybee colonies. Journal of Apicultural Research, 15: 59-62.
Lensky, Y., Baehr, J.-C. et Porcheron, P. (1978) Dosages radioimmunologiques des ecdysones et des hormones juvé niles au cours du dé veloppement post-embryonnaire chez les ouvriè res et les reines d'Abeille (Apis mellifica L.). Comptes Rendus de l'Acadé mie des Sciences (Paris), Sé rie D, 285: 821-824.
Lensky, Y. et Cassier, P. (1978) Contribution à l'é tude physico chimique et immunologique des proté ines cuticulaires du Criquet migrateur Locusta migratoria migratorioides (R. et F.). Comptes Rendues d'Acadé mie des Sciences (Paris), Sé rie D, 287: 515-518.
Lensky, Y., Ben-David, E. and Schindler, H. (1979) The ultrastructure of the mature drone honeybee spermatozoon. Journal of Apicultural Research, 18: 264-271.
Lensky, Y. and Skolnik, H. (1980) Immunochemical and electrophoretic identification of the vitellogenin proteins of the queen bee (Apis mellifera). Comparative Biochemistry and Physiology, 66B: 185-193.
Lensky, Y. and Seifert, H. (1980) The effect of volume, ventilation and overheating of bee colonies on the construction of swarming queen cups and cells. Comparative Biochemistry and Physiology, 67A: 97-101.
Cassier, P., Porcheron, P., Papillon, M. et Lensky, Y. (1980) Contribution à l'é tude des proteines cuticulaires du criquet migrateur, Locusta migratoria migratorioides (R. et F.), donné es quantitatives. Annales de Sciences Naturelles, Zoologie, Paris, 14e Sé rie, 2: 51-65.
Lensky, Y. and Slabezki, Y. (1981) The inhibiting effect of the queen bee (Apis mellifera) foot-print pheromone on the construction of swarming queen cups. Journal of Insect Physiology, 27: 313-323.
Levinsohn, M. and Lensky, Y. (1981) Long-term storage of queen honeybees in reservoir colonies. Journal of Apicultural Research, 20: 226-233.
Lensky, Y. and Rakover, Y. (1983) Separate protein body compartments of the worker honeybee (Apis mellifera L.). Comparative Biochemistry and Physiology, 75B: 607-615.
Margalith (Rapp), R., Lensky, Y. and Rabinowitch, H. (1984) The evaluation of BeelineR as a honeybee attractant to cucumbers and its effects on seed production. Journal of Apicultural Research, 23: 50-54.
Asencot, M. and Lensky, Y. (1984) Juvenile hormone induction of "Queenliness" on female honeybee (Apis mellifera L.) larvae reared on worker and stored royal jelly. Comparative Biochemistry and Physiology, 78B: 109-117.
Lensky, Y., Cassier, P., Finkel, A., Teeshbee, A., Schlesinger, R., Delorme-Joulie, C. et Levinsohn, M. (1984) Les glandes tarsales de l'abeille mellifique (Apis mellifera L.) reines, ouvriè res et faux bourdons (Hymenoptera, Apidae). II. Rô le biologique. Annales des Sciences Naturelles, Zoologie, Paris, 6: 167-175.
Lensky, Y., Cassier, P. Notkin, M., Delorme-Joulie, C. and Levinsohn, M. (1985) Pheromonal activity and fine structure of the mandibular glands of honeybee drones (Apis mellifera L.) (Insecta, Hymenoptera, Apidae). Journal of Insect Physiology, 31: 265-276.
Lensky, Y., Cassier, P., Finkel, A., Delorme-Joulie, C. and Levinsohn, M. (1985) The fine structure of the tarsal glands of the honeybee Apis mellifera L. (Hymenoptera). Cell and Tissue Research, 240: 153-158.
Asencot, M. and Lensky Y. (1985) The phagostimulatory effect of sugars on the induction of "Queenliness" in female honeybee (Apis mellifera L) larvae. Comparative Biochemistry and Physiology, 81A: 203-208.
Lensky, Y. and Demeter, M. (1985) Mating flights of the queen honeybee (Apis mellifera) in a subtropical climate. Comparative Biochemistry and Physiology, 81A: 229-241.
Lensky, Y., Finkel, A., Cassier, P., Teeshbee, A. and Schlesinger, R. (1987) The tarsal glands of the honeybee (Apis mellifera L.) queens, workers and drones. Chemical characterization of foot-print secretions. Honeybee Science, 8: 97-102 (in Japanese).
Asencot, M. and Lensky, Y. (1988) The effect of soluble sugars in stored royal jelly on the differentiation of female honeybee (Apis mellifera L.) larvae to queens. Insect Biochemistry, 18: 127-133.
Lubinevsky, Y., Stern, Y., Slabezki, Y., Lensky, Y., Ben-Yossef, H. and Gerson, U. (1988) Control of Varroa jacobsoni and Tropilaelaps clareae mites using MavrikTM in Apis mellifera colonies under subtropical and tropical climates. American Bee Journal, 128: 48-52.
Dafni, H., Lensky, Y. and Fahn, A. (1988) Flower and nectar characteristics of nine species of Labiatae and their influence on the honeybee visits. Journal of Apicultural Research, 27: 103-114.
Gerson, U., Lensky, Y., Lubinewski, Y., Slabezki, Y. and Stern, Y. (1989) Varroa jacobsoni in Israel, 1984-1986. In: Africanized Honeybees and Bee Mites (Needham, J.R., Page, R.E., Delfinado-Baker, M. and Bowman, C.E., Eds). pp. 421-424. Ellis Howood, Chichester, UK.
de Hazan, M., Lensky, Y. and Cassier, P. (1989) Effects of queen honeybee (Apis mellifera L.) ageing on her attractiveness to workers. Comparative Physiology and Biochemistry, 93A: 777-783.
de Hazan, M., Hyams, Y., Lensky, Y. and Cassier, P. (1989) Ultrastructure and ontogeny of the mandibular glands of the queen honeybee, Apis mellifera L. (Hymenoptera: Apidae). International Journal of Insect Morphology and Embryology, 18: 311-320.
Cassier, P. and Lensky, Y. (1991) Evolution du titre de l'hormone juvé nile III, des ecdysteroï des et d'une phé romone, la 2-heptanone, en relation avec le polyé thisme des ouvriè res de l'Abeille domestique (Apis mellifera L. var. ligustica). Comptes Rendus de l’Acadé mie des Sciences. (Paris), Sé rie III, 312: 343-348.
Vallet, A., Cassier, P. and Lensky, Y. (1991) Ontogeny of the fine structure of the mandibular glands of the honeybee (Apis mellifera L.) workers and the pheromonal activity of 2-heptanone. Journal of Insect Physiology, 37: 789-804.
Lensky, Y., Cassier, P., Rosa, S. and Grandperrin, D. (1991) Induction of balling in worker honeybees (Apis mellifera L.) by "stress" pheromone from Koshewnikow glands of queen bees: behavioural, structural and chemical study. Comparative Biochemistry and Physiology, 100A: 585-594.
Slabezki, Y., Gal, H. and Lensky, Y. (1991) The effect of Fluvalinate application in bee colonies on population levels of Varroa jacobsoni and honeybees and on residues in honey and wax. Bee Science, 1: 189-195.
Cassier, P. and Lensky, Y. (1992) Structure et rô le social de quelques glandes exocrines de l'Abeille domestique (Apis mellifera L.). I.- Glandes tarsales, glandes tergales et glandes de Koschewnikow. Anné e Biologique, 31: 61-78.
Cassier, P. and Lensky, Y. (1992) Structure et rô le sociale de quelques glandes exocrines de l'Abeille domestique (Apis mellifera L.). II.- Glandes mandibulaires. Anné e Biologique, 31: 79-95.
Lensky, Y. and Cassier, P. (1992) Control of swarming by queen bee pheromones. Bee Science, 2: 7-11, and (1994) Yalkoot Hamikhveret, 30: 8-9, 24.
Gal, H., Slabezki, Y. and Lensky Y. (1992) A preliminary report on the effect of Origanum oil and thymol applications in honeybee (Apis mellifera L.) colonies in a subtropical climate on population levels of Varroa jacobsoni. Bee Science, 2: 175-180.
Zupko, K., Sklan, D. and Lensky, Y. (1993) Proteins of the honeybee (Apis mellifera L.) body surface and exocrine gland secretions. Journal of Insect Physiology, 39: 41-46.
Rabinowitch, H.D., Fahn, A. Meir, T. and Lensky, Y. (1993) Flower and nectar attributes of pepper (Capsicum annuum L.) plants in relation to pollination. Annals of Applied Biology, 123: 226-232.
Cassier, P., Tel-Zur, D. and Lensky, Y. (1994) The sting sheath of honeybee workers (Apis mellifera L.): structure and alarm pheromone secretion. Journal of Insect Physiology, 40: 23-32.
Cassier, P. and Lensky Y. (1994) The Nasanov gland of workers of the honeybee (Apis mellifera L.): ultrastructural and behavioural function of the terpenoid and protein components. Journal of Insect Physiology, 40: 577-584.
Lensky, Y. Cassier, P.and Tel-Zur, D. (1994) Alarm inside the bee hive: Honeybee workers sting sheaths, pheromonal and protein secretions. Les Insectes Sociaux (Eds. Lenoir, A., Arnold, G., Lepage, M.), p. 308. Proc. 12th Congress Intern. Union for the Study of Social Insects. 21-27August, 1994, Paris.
Hauser, H. and Lensky Y. (1994) The effect of the honeybee (Apis mellifera L.) queen's age on worker population, swarming and honey yields in a subtropical climate. Apidologie, 25: 566-578, and (1996) Teknik Aricilik, 51: 2-6 (in Turkish).
Tel-Zur, D. and Lensky, Y. (1995) Bioassay and apparatus for measuring the stinging response of an isolated worker honeybee (Apis mellifera L. var. ligustica Spin.). Comparative Biochemistry and Physiology, 110A: 281-288.
Lensky Y., Cassier, P. and Tel-Zur, D. (1995) The setaceous membrane of honeybee (Apis mellifera L.) workers' sting apparatus: structure and alarm pheromone distribution. Journal of Insect Physiology, 41: 589-595.
Cassier, P. and Lensky, Y. (1995) Ultrastructure of the wax gland complex and secretion of beeswax in the worker honeybee, Apis mellifera L. Apidologie, 26: 17-26.
Lensky, Y. and Cassier, P. (1995) The alarm pheromones of the queen and worker honeybee (Apis mellifera L.). Honeybee Science, 17: 125-130 (in Japanese), and Bee World, 76: 119-129.
Rakover, Y., Shneyour, A., Rosen , G. and Lensky, Y. (1995) Comparison of the proteins of middle ear effusion with human mast cell proteins. The Journal of Laryngology and Otology, 109:1146-1150.
Cassier, P. and Lensky, Y. (1997) The exocrine glands of honeybees: their structure and secretory products. Honeybee Science, 17: 118-124 (in Japanese), and In: Bee Products, Properties, Applications and Apitherapy (eds.: A. Mizrachi and Y. Lensky), pp. 137-150, Plenum Press, London.
Lensky, Y. and Cassier, P. (1997) Alarm pheromones of the queen and worker honeybees (Apis mellifera L.). In: Bee Products, Properties, Applications and Apitherapy (eds. A. Mizrachi and Y. Lensky), pp. 151-160, Plenum Press, London.
Rakover, Y. and Lensky, Y. (1997) Protein traffic between body compartments of the female honeybee (Apis mellifera L.). In: Bee Products, Properties, Applications and Apitherapy (eds. A. Mizrachi and Y. Lensky), pp. 161-172, Plenum Press, London.
Lensky, Y., Dechmani, U., Jirasavetakul, U. and Tiewtrakul, S. (1997) The effect of fluvalinate on Varroa jacobsoni (Oud.) and Tropilaelaps clareae (Delfinado & Baker) in Apis mellifera colonies in North Thailand. Proc. 3rd Asian Apicultural Association Conference, 6-10 October, 1996, Hanoi, Vietnam (in press).
Mizrahi, A. and Lensky, Y., Eds. (1997) Bee Products, Properties, Applications and Apitherapy, Proceedings of an International Conference on Bee Products held May 26-30, 1996 in Tel-Aviv, Israel. Plenum Press, New York and London, 269 p.
PUBLICATIONS IN HEBREW
Demeter, M. and Lensky, Y. (1983) Mating flights of honeybee queens and the success of their mating year-around in Israel. Yalkoot Hamikhveret, 15: 19-42.
de Hazan, M. (1983) Bacteriostatic substances in bee products. Yalkoot Hamikhveret, 16: 23-34.
de Hazan, M. (1984) The contribution of Ré aumur to the understanding of the biology of honeybees. Yalkoot Hamikhveret, 17: 17-28.
Barkan, A. (1984) Beekeeping during the Mishnaic and Talmudic periods. Yalkoot Hamikhveret, 17: 29-31.
Margalith (Rapp), R. (1985) The honeybee as pollinating agent of cultivated plants. Yalkoot Hamikhveret, 18: 23-29.
Thomas, N. (1986) Protecting honeybees from pesticides. Yalkoot Hamikhveret, 21: 19-29.
Lubinevsky, Y., Stern, Y., Slabezki, Y., Lensky, Y., Ben-Yossef, H. and Gerson, U. (1987) Control of Varroa jacobsoni in bee colonies using Mavrik™. Hassadeh, 68: 551-554.
Lensky, Y. and Cassier, P. (1994) Control of swarming by queen bee pheromones. Yalkoot Hamikhveret, 30: 8-9, 24.
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