Papers by amala udayakumar
Egyptian Journal of Biological Pest Control, Apr 13, 2023
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International Journal of Tropical Insect Science, Mar 21, 2023
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Environmental Science and Pollution Research, May 26, 2022
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Egyptian Journal of Biological Pest Control
Background Aphidophagous syrphid, Ischiodon scutellaris (Fabricius) (Diptera: Syrphidae) is an ef... more Background Aphidophagous syrphid, Ischiodon scutellaris (Fabricius) (Diptera: Syrphidae) is an effective predator of aphids that infest many agricultural and horticultural crops. Cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), is the natural host for culturing syrphid predator, I. scutellaris. The present study was conducted to evaluate the feeding and development of I. scutellaris on seven species of aphid hosts viz., A. craccivora, Aphis fabae Scopoli, Aphis gossypii Glover (from cotton), Schoutedenia emblica (Patel & Kulkarni), Brevicoryne brassicae (L.), Aphis gossypii (from okra) and Hyperomyzus carduellinus (Theobald) and to identify an alternative aphid host to maintain the culture of I. scutellaris during the situation of non-availability/loss of the culture of A. craccivora. Results Aphis fabae was not accepted for feeding by the larvae of I. scutellaris. The larvae of I. scutellaris did not survive on S. emblica. The descending order of feeding potential of aph...
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International Journal of Tropical Insect Science
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Environmental Science and Pollution Research
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Trends in Horticultural Entomology, 2022
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Trends in Horticultural Entomology, 2022
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Background of the Study: Ayurveda has described eight kinds of honey with the different medicinal... more Background of the Study: Ayurveda has described eight kinds of honey with the different medicinal values that get change with the passage of time of one year. Pauttika honey is a specific kind of honey among the eight types of honey produced by Pauttika honey bee, which is indicated in the management of diabetes (Prameha), obesity (Sthaulaya), dyslipidemia, etc. Objective: To identify and standardize the type of honey and its honey bee on scientific parameters and the characteristics as mentioned in Ayurveda. Materials and Methods: Honey was procured from the natural honey hive and Standard methods were used for physico-chemical analysis, sensory evaluation, and color hunter test. Bee identification was done by an expert entomologist. Results: Analysis of honey, showed that procured honey was Pauttika type of honey as described in Ayurveda and bee was identified as Apis dorsata. Researchers also found some changes in the properties of honey after the one year like in pH, HMF, Color,...
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Current Research in Nutrition and Food Science Journal, 2020
Ayurveda has described eight kinds of honey with the different medicinal values that gets change ... more Ayurveda has described eight kinds of honey with the different medicinal values that gets change with the passage of time of one year. Pauttika honey is a specific kind of honey among the eight types of honey produced by Pauttika honey bee, which is indicated in the management of diabetes (Prameha), obesity (Sthaulaya), dyslipidemia, etc. To identify and standardize the type of honey and its honey bee on scientific parameters and the characteristics as mentioned in Ayurveda. Honey was procured from the natural honey hive and Standard methods were used forphysico-chemical analysis, sensory evaluation, and color hunter test.Bee identification was done by an expert entomologist. Analysis of honey, showed that procured honey was Pauttika type of honey as described in Ayurveda and bee was identified as Apis dorsata. Researchersalso found some changes in the properties of honey after the one year like in pH, HMF, Color, and Sensory evaluation. The Physico-chemical analysis of honey sample...
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Sociobiology
Floral specificity is a behavior that evolved due to mutualistic interactions between the plant-p... more Floral specificity is a behavior that evolved due to mutualistic interactions between the plant-pollinator community. Flowers advertise themselves using visual or chemical cues to attract pollinators and gain reproductive success through pollination. Pollinators forage for rewards such as nectar or pollen produced by the flowers. We found that an anthophorid bee, Tetralonia macroceps, foraged specifically on Argyreia cuneata flowers. No visitation was observed on the flowers of A. nervosa though both belong to Convolvulaceae. T. macroceps was the most abundant floral visitor (5.21 bees/flower/5 min) on A. cuneata and did not visit A. nervosa. Mass flowering and narrow tubular flower structure with easy access to pollen in A. cuneata were the traits that accounted for the foraging specificity of T. macroceps. The present study investigates the preference of T. macroceps for the flowers and floral extracts of A. cuneata and A. nervosa. The bee visited 10.16 flowers/5 min of A. cuneata...
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Biocontrol Science and Technology, 2022
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Journal of Apicultural Research, 2021
Eggplant is an important vegetable crop grown worldwide. Eggplant flowers have typical poricidal ... more Eggplant is an important vegetable crop grown worldwide. Eggplant flowers have typical poricidal anthers which need a vibratory motion for effective pollination. This study was conducted to identif...
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International Journal of Tropical Insect Science, 2021
An experiment was conducted to explore the suitability of black soldier fly (BSF) Hermetia illuce... more An experiment was conducted to explore the suitability of black soldier fly (BSF) Hermetia illucens (Linnaeus) prepupae as poultry feed. Ninety day old, unsexed, Cobb chicks were distributed into 2 treatment groups, with 5 replicates, having 9 birds in each replicate, in a completely randomized design. The two dietary treatments consisted of corn-soy control diet and 5% supplemented insect meal-based diet. Results indicated similar (P > 0.05) body weight gain, feed intake or feed conversion ratio in chicks fed either insect meal or control diet during the experimental period. There was also no significant difference (P > 0.05) in the crude protein digestibility, cellular immunity as well as the length or weight of duodenum, jejunum, ileum and caecum between the treatments. It could be concluded that the black soldier fly prepupae meal can be incorporated at 5% in broiler diet. Thus, BSF can play a significant role in converting waste into feed and add to the feed basket in fut...
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Journal of Plant Diseases and Protection, 2020
Fall armyworm, Spodoptera frugiperda (Noctuidae: Lepidoptera), is an economically important invas... more Fall armyworm, Spodoptera frugiperda (Noctuidae: Lepidoptera), is an economically important invasive pest infesting maize. Habitat manipulation as a method of conservation biological control which employs cover crops/hedge rows/flower strips crops in the main crop field to conserve the beneficial insect fauna like natural enemies. An experiment was conducted to study the influence of intercropping of leguminous crops in maize for the management of fall armyworm. Five treatments viz., maize + groundnut (Arachis hypogaea), maize + broad bean (Vicia faba), maize + (Desmodium sp), maize + soybean (Glycine max) and monocrop of maize were evaluated for the severity of damage caused by fall armyworm. The percent plant damage and number of live larvae per 25 plants were significantly less in the maize + Desmodium sp at 9 weeks after planting compared to the monocrop of maize. Significantly higher rates of parasitization of egg mass of fall armyworm by Trichogramma sp were recorded in the maize + broad bean compared to the monocrop of maize. The abundance of Coccinellid predators and geocorid bugs was significantly higher in maize intercropped with groundnut compared to the sole crop of maize. The results of the study indicated the definite role of maize-legume intercropping in reducing fall armyworm damage in maize.
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Sociobiology, 2020
Necessity of pollinators in ecosystem services and their decline has raised concern for their con... more Necessity of pollinators in ecosystem services and their decline has raised concern for their conservation both in farm lands and urban areas. With the aim of conservation of these pollinators, we initiated developing a pollinator garden at Yelahanka Campus of ICAR-National Bureau of Agricultural Insect Resources in an area of one acre by planting over 50 diverse plant species. Thirty-nine different species of bees were documented from the flora of the pollinator garden. Out of the thirty-nine species of bees, nineteen species of bees belong to non-apis families viz., Megachilidae and Halictidae. Apart from foraging on the flowers, the solitary bees like Megachile sp. were found nesting in the stems, fallen dried flowers in the pollinator garden. The bees were found year-round foraging upon the flora in the pollinator garden. Pollinator garden is a way to in-situ conserve the native bees to sustain the valuable pollination service in various crop plants provided by them.
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Sociobiology, 2018
Nesting biology and Seasonal dynamics of Halictid bee, Hoplonomia westwoodi (Nomiinae: Halictidae... more Nesting biology and Seasonal dynamics of Halictid bee, Hoplonomia westwoodi (Nomiinae: Halictidae) was studied at ICAR-National Bureau of Agricultural Insect Resources (NBAIR) Bengaluru, Yelahanka Campus (13.096792N, 77.565976E) India from July 2016 to May 2017. The bee built subterranean nests on a leveled soil surface with turrets with main shaft running to a depth of 70.1 cm. In total, nineteen cells were observed in clusters at diferente depths. Different life stages of the bee were observed in the cells. The life cycle of the bee was completed in 41.80 days. The bees were found actively foraging on different flora belonging to the different families like Acanthaceae, Asteraceae, Convolvulaceae, Fabaceae, Lamiaceae, Malpighiaceae, Polygonaceae, Rubiaceae and Solanceae throughout the year with the peak population during the months of June to November. Marked preference and behavior of buzz pollination was observed on the flowers of Solanaceous crops like tomato and eggplant.
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Journal of Apicultural Research, 2019
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Sociobiology, 2019
The small carpenter bee, Ceratina binghami (Xylocopinae:Apidae) is an important pollinator of man... more The small carpenter bee, Ceratina binghami (Xylocopinae:Apidae) is an important pollinator of many agricultural and horticultural crops. The nests constructed by the bee in the pruned pithy stems of Caesalpinia pulcherrima were collected to study its biology under laboratory conditions. The bee constructs its nest in the pithy stems of different plants by chewing over the pith layer. The bee is oligolectic in habit and make pollen balls and provision its broods in the cells with an interesting guarding behavior in the nest. The nests consisted of egg, larvae, prepupae, pupae and adult stages. Life cycle of the bee was completed in 41.67±3.12 days. Pupal stage consisted of different colors of eye pigmentation. Foraging activity of the bee started during morning hours approximately between 6.45 to 7.15 am and ended during the late evening hours of 4.50 to 5.15 pm. The nest architecture of the bee was studied and presented. The nesting behavior and short life cycle of C. binghami in pi...
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Sociobiology
Solitary bees of the family Megachilidae are the key pollinators of pigeon pea. Artificial trap n... more Solitary bees of the family Megachilidae are the key pollinators of pigeon pea. Artificial trap nests were used to study nesting parameters, such as occupancy rate, nest establishment time, and building pattern during the vegetative and flowering stages of the Cajanus cajan (Fabaceae). The installed traps were occupied by three different leafcutter bees (Megachile lanata, M. laticeps, M. disjuncta) and one parasitic bee Coelioxys sp. Bees occupied the nest tubes for 16.01 ± 2.82 and 10.23 ± 2.30 days in the vegetative and flowering stages. We recorded 38.33 and 72.50% trap occupancy rates during crop vegetative and flowering stages, respectively. The percent parasitization by Melittobia sp was significantly higher during the vegetative stage (53.67%). Brood cells were parasitized by Coelioxys sp (6.67%) during the flowering stage. Many female bees tend to occupy trap nests with active nest construction during the flowering stage (7.21 ± 2.28 bees). In contrast, male bees merely took...
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Papers by amala udayakumar