scholarly journals Effects of diflubenzuron and penfluron on workers of Apis cerana indica F and Apis mellifera L

Apidologie ◽  
1995 ◽  
Vol 26 (1) ◽  
pp. 3-10 ◽  
Author(s):  
P. R. Gupta ◽  
R. S. Chandel
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Apis Cerana Indica

scholarly journals PLECTRANTHUS AS FORAGE FOR APIS CERANA INDICA F. AND APIS MELLIFERA L

Apidologie ◽  
1984 ◽  
Vol 15 (1) ◽  
pp. 75-82 ◽  
Author(s):  
J. K. GUPTA ◽  
R. C. MISHRA ◽  
JITENDER KUMAR
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Apis Cerana Indica

Influence of cell type and mandibular dentition on the ability of captive honey bee workers and drones (Apis cerana indica Fabr. and Apis mellifera L.) to uncap brood cells: biological implications for parasitic mites (Varroa spp.)

2000 ◽  
Vol 78 (4) ◽  
pp. 666-679 ◽  
Author(s):  
A R Davis ◽  
H P Prabhuswamy
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Apis Cerana ◽  
Cell Type ◽  
Gelatin Capsules ◽  
Apis Cerana Indica ◽  
Mandibular Teeth ◽  
Honey Bee Workers ◽  
Parasitic Mites ◽  
Apical Tooth

Experiments to study the ability of adults (workers and drones) of the eastern honey bee, Apis cerana indica Fabr., and the western honey bee, Apis mellifera L., to uncap brood cells were undertaken in Bangalore, India. Using halved gelatin capsules, individual adults were confined opposite the intact cap that sealed vacant, isolated brood cells. From inside the cell, workers and drones of both species penetrated the drone-cell cap of A. mellifera with regularity. When placed outside the cell, workers of both species were successful in perforating the same cap. Similarly, A. c. indica workers easily perforated the cap of A. c. indica worker cells from inside. However, significant caste-specific differences in success at perforating the cap of A. c. indica drone cells were observed; whereas drones did so regularly, A. c. indica workers usually perished when so challenged. When held facing the cap while inside or outside the drone cell, none or only 10% of workers, respectively, managed to chew a hole in it. Even when two workers faced the same drone-cell cap, one from each side, only 20% of caps were perforated. These results are consistent with the hypothesis that the tough apex of the drone cocoon of A. cerana is typically impervious to uncapping from outside, and hence has provided an opportunity for the uninterrupted reproduction of invading parasitic mites (Varroa spp.). The mandibles of drones of both species possess a diminutive apical tooth along the distal margins that is absent in workers. The lack of mandibular teeth in workers may explain the disparity in ability to penetrate the tough cocoon of A. c. indica drones. The mandibles of both castes suffer wear.

scholarly journals Diversity and Foraging Behaviour of Insect Pollinators on Murraya koenigii (L. ) (Rutaceae)

2020 ◽  
pp. 15-19
Author(s):  
M. M. Dhore
Keyword(s):  
Apis Mellifera ◽  
Foraging Behaviour ◽  
Apis Cerana ◽  
Early Morning ◽  
Insect Species ◽  
Apis Florea ◽  
Apis Dorsata ◽  
Murraya Koenigii ◽  
Insect Pollinators ◽  
Apis Cerana Indica

The present studies on diversity and foraging behaviour of insect pollinators on Murraya koenigii (L. )was carried out during March - April 2019 at Akot town situated in Akola district of Maharashtra. Ten insect species visited Murraya koenigii flowers viz. Five hymenopterans and five lepidopterons. This study revealed that hymenopterans were found to be the most dominant (97. 5%) flower visitors, followed by lepidopteron insects (2. 5%). Among these Apis florea, Apis cerana indica, and Apis dorsata were found to be the most frequent pollinators. The result on foraging behaviour of bees Apis florea started visiting Murrya koenigii flowers in early morning at 06. 00 hrs, Apis cerana indica at 6. 30 hrs and ceased their activity later in the evening. Apis mellifera and Apis dorsata , they started visiting the flowers from 7. 00hrs. Maximum foraging was by Apis florea (12 flowers /minute)followed by Apis cerana indica (10 flowers/minute )and Apis dorsata (9-10 flowers /minute). Time spent per flower was the maximum with lepidopteron (25 sec. /flower) followed by Moth (15 sec. /flower)

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