1./ 1958-59: USA
University of Wisconsin, California and Louisiana:
Practical beekeeping in commercial apiaries.
Instrumental insemination of bees.
Prof. dr C. Farrar, Prof. dr H. Laidlaw
(1 year)
2./ 1967-68: Brazil
University of Sao Paulo in Riberao Preto:
Investigation on diploid drones of African bees
Prof. dr W. Kerr
(7 months)
3./ 1971: Fed. Rep. of Germany
Frankfurt am Main University,Institut fur Bienenkunde,
Oberursel: Investigation on reproduction of European
and Indian bees - Apis cerana
Prof. dr F. Ruttner
(3 months).
4./ 1972: Norway
Agriculture University in As, Beekeeping Institute in
Asker: Investigation on bee breeding
Dr Lunder
(3 months).
5./ 1973: Australia
Waite Agricultural Institute in Adelaide: Studies on
honey bee sanctuary on Kangaroo Island
Prof. dr K. Doull
(3 months).
6./ 1974: India
Central Bee Research Institute in Poona: Investigation
on Indian bees (7 months)
7./ 992: China
Institute of Apicultural Research, Chinese Academy of
Agricultural Science, Bijing: Investigation on biology
and control of Tropilaelaps clareae. (2 months)
8./ 1992: Thailand
Chulalongkorn University, Bee Biology Research Unit,
Bangkok: Investigation on Asian honey bees.
Prof. dr S. Wongsiri
(1.5 months).
9./ 1993: China
Institute of Apicultural Research, Chinese Academy of
Agricultural Science, Bijing: Investigation on biology
and control of Tropilaelaps clareae. (1 month).
10./ 1995 Malezja
Agricultural Research Station, Tenom, Borneo:
Investigation on body color of Apis koschevnikovi.
Dr Tingek
(1 week).
12./ 1999/2000 Nepal
Dabur Apicultural Center
Investigation on relationship between Apis dorsata and Apis
mellifera
(7 months).
13./ 2000 Malta
Investigations on Apis mellifera ruttneri
Mrs Marica Gato
(2 weeks)
14./ 2002 India
Bangalore University, Prof. dr C. C. Reddy, dr V. Sivaram
and Agricultural University, Bangalore Prof. dr G. Gowda
Investigations on Apis dorsata and A. florea
(1 month)
15./ 2004. PHILIPPINES
Los Baños 20. 02 - 10. 03 ,
Investigation on defence behaviour of Apis dorsata breviligula
Prof. dr C. Cervancia
16./
2005. INDIA
Bangalore13 Nov - 5 Dec
Investigation on drone flights of Apis
dorsata.