Samrat Saha

Uttar Banga Krishi Vishwavidyalaya · Department of Entomology

An experiment was conducted in the apiary of Uttar Banga Krishi Viswavidyalaya, Pundibari during 2019. For study, six strong Apis mellifera L. colonies of similar strength were used. A positive and significant correlation of temperature (maximum and minimum) and relative humidity (minimum) with the foraging duration was found. During the cooler mon...

Black drongo, is an important insectivorous bird that also feeds on honey bees and is considered as an Dicrurus macrocercus important natural enemy of Western honey bees ( Linn.) causing a significant reduction in the colony strength and honey yield. Apis mellifera The present investigation evaluated the perching behaviour and seasonal incidence of...

The assessment of botanical origin of honey in northern districts of West Bengal, viz. Coochbehar, Jalpaiguri and Alipurduar districts through melissopalynological analysis is the focus of this study. Ten different honey samples were analysed, from which 78 different pollen taxa representing 34 different plant families have been detected. Asteracea...

Coccinellidae is a group of economically important insect and widely used as biological control agents in different agricultural and horticultural ecosystem. In last few years a number of works on coccinellid beetles have been carried out at Pundibari region of northern tract of West Bengal. Here, a first preliminary checklist of coccinellid beetle...

About 70% of our food crops depend on the pollination service provided by different insect pollinators amongst which wild and hive bees are the key pollinators. Insect pollination accounts for over 153 billion euro to agricultural production annually. Pollination also improves yield and market value of the food commodity. A section of people from o...

The present study was conducted to evaluate the seasonal incidence of Asian green bee-eater, Merops orientalis on Western honey bee, Apis mellifera under Terai agro-ecological region of West Bengal, India. Different trees, crops, shrubs, electric power lines, instructional boards, fencing, bamboo pegs, rice stubbles, as well as ground were the perc...

Pollination is the basic pillar of our food production, and in this respect, different hymenopteran bees play a crucial role. However, with technological advancements, our world is moving towards a situation that is inviting an enforced 'bee decline' or more broadly 'pollinator crisis'. There are many reasons responsible for this phenomenon, like h...

The aquatic ecosystems are the largest and the most critical one in the Biosphere and serve as the habitat for thousands of living species; and remain unexplored. There are two kinds of aquatic ecosystem in the world, fresh water and marine water depending on the physical condition and composed of rich diversity of insect fauna. The freshwater ecos...

In the current investigation the seasonal incidence of G. mellonella on A. mellifera colonies was observed in the terai agro-ecological region of West Bengal, India. Maximum incidence of greater wax moths was noted during June to August with peak incidence in the month of July (13.83 ± 0.68 no. of individuals/hive). Maximum percentage of hives with...

The present study was conducted during September, 2018 to August, 2020 on the seasonal incidence of Vespa tropica Linn. on Apis mellifera Linn. under terai agro-ecological region of West Bengal, India. Ten numbers of A. mellifera colonies of similar strength was placed in the apiary unit of Uttar Banga Krishi Viswavidyalaya, West Bengal, India in w...

Migratory beekeeping is a modern concept of commercial beekeeping that improves the yield of honey by many times. In this type of beekeeping, honey bee boxes are transported from one nectar-exhausted area to another nectar-rich area. It is not only beneficial for the beekeeper but also increases the crop yield through pollination and thus provides...

A study was conducted on foraging activity of A. mellifera in litchi at different hours of the day. Six numbers of strong A. mellifera colonies were placed in the orchard. Maximum foraging activity was recorded during the 9 - 11 h of the day. It was found that the forager abundance at this time was 11.00 and 10.00 foragers/m2/min during 2019 and 20...

Commercial beekeeping is highly threatened by a number of biotic stresses that included different mite pests. An experiment was conducted in the Apiary unit of Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, India during 2018-19 and 2019-20 season to assess the seasonal incidence of different parasitic mites on the European...

India is an agrarian country with around 70% population belong to farming community. Agriculture and its allied sectors are significant contributor to the GDP of the country. India is a significant rank holder in the world in production of different agricultural and horticultural produces, viz. cereals, pulses, oilseeds, vegetables, fruits, spices,...

Jackfruit (Artocarpus heterophyllus Lam.) is a popular fruit belongs to family Moraceae and also the national fruit of Bangladesh. It considered as the largest edible fruit in the world. It is the favourite fruit of many due to its sweetness. The fruit is rich in several nutrients and can act as source of complete nutrition to the consumers. There...

Litchi chinensis Apis mellifera. pis mellifera, Apis dorsata, Apis cerana indica, Camponotus compressus, Lasihlossum spp., Allodapula spp., Braunaspis spp. and Ceratina spp. Musca domestica, Lucilia porphyrina, Eristalinus tabanoides, and Episyr-phus balteatus , Junonia atlites, Ypthima baldus, Eurema hecabe and Tarucus extricates Coccinella transv...