A5030610373- Forest ecology and management
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Plant tissue culture and regeneration
- Conservation, Biodiversity, and Resource Management
- Seedling growth and survival studies
- Insect Pest Control Strategies
- Forest Management and Policy
- Mycorrhizal Fungi and Plant Interactions
- Agricultural Economics and Practices
- Botany and Plant Ecology Studies
- Agronomic Practices and Intercropping Systems
- Plant Pathogens and Fungal Diseases
- Fungal Biology and Applications
- Ethnobotanical and Medicinal Plants Studies
- African Botany and Ecology Studies
- Seed Germination and Physiology
- Forest Ecology and Biodiversity Studies
- Insect Resistance and Genetics
- Plant Taxonomy and Phylogenetics
- Forest Ecology and Conservation
- Rice Cultivation and Yield Improvement
- Flowering Plant Growth and Cultivation
- Coleoptera: Cerambycidae studies
- Plant and Fungal Species Descriptions
Tribhuvan University
2019-2020
Nepal Agricultural Research Council
2020
University of Lucknow
2012-2015
Abstract Male contributions, both chemical and behavioural, can influence female sperm usage reproductive success. To determine whether such male factors are subject to depletion in Coccinella septempunctata transversalis , we tested the effects of mating history on virility, as estimated by measures behaviour, success progeny fitness, with parental age held constant. Overt effort (wriggling duration, number shaking bouts total copula duration) all diminished from virgin 5 × mated males were...
The nutritive quality of aphids, conspecific and heterospecific eggs as food for ladybirds is a controversial issue. If find aphids more palatable than then they are likely to efficiently exploit be biocontrol agents aphids. or these may either impede aphid pest suppression become threat other species ladybirds. Thus, prior formulating predatory guilds the their compared that target needs determined. In this regards, present study evaluates an ad libitum supply of: (i) pea aphid,...
Abstract In the present study, effects of body size and prey quality on reproductive attributes longevity two aphidophagous Coccinellidae (Coleoptera), Coccinella septempunctata (Linnaeus) transversalis Fabricius, have been investigated in laboratory conditions. Higher fecundity, egg fertility, were obtained larger females C. pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae), bean Aphis craccivora Koch Aphididae). Males survived longer than those both prey. Number clutches was...
Despite the many studies on age based mate choice in insects, question of how influences predaceous ladybird beetles is still unexplored.The present study evaluates two sympatric aphidophagous ladybirds, Coccinella septempunctata L. and transversalis Fab., terms mating behaviour (latent period, number bouts, bout interval duration wriggling movements mating), fecundity, egg viability development survival their progeny.Results revealed that middle aged (30-40 days) mates were preferred by...
Abstract. A study was conducted at four Village Development Committees (Masuriya, Udashipur, Basauti and Pahalmanpur) of Kailali dis- trict, Far western Region, Nepal in 2016/17 to find out the effect different storage materials on seed moisture content germination percentage wheat. Seeds wheat were packed using five (metal bin, earthen pot, purdue improved crop / Pics/ bag, gunny bag super grain bag). The stored samples drawn three-month intervals starting from May 2016 January 2017....
The avifaunal survey was conducted in Wards 15, 18, and 19 of Bhimdatta Municipality, Kanchanpur, Nepal, from February 2022 to May 2023 using the Point Count Method. Fixed observation points were established across croplands, rangelands, urban areas, where birds recorded within a 50-meter radius during 10-minute period at each point. Bird identification carried out with assistance experts Conservation Nepal (BCN) revised edition Birds (2022) as reference. Data systematically documented,...
The evolution and maintenance of multiple mating (repeated or polyandry) in predaceous ladybird beetles (Coleoptera: Coccinellidae) is an adaptive puzzle; since a single ejaculate male often provides enough sperm to female for her lifetime egg production. Despite numerous studies on evaluating reproductive attributes, there are negligible that investigated changes behavioural patterns ladybirds during mating. In the present study, effects pattern males attributes females have been assessed...
This study assessed development, survival and reproductive parameters of a ladybird beetle, Coccinella transversalis Fabricius, 1781 on different quantities (viz. scarce, optimum abundant) the bean aphid prey, Aphis craccivora under laboratory conditions (27 ±1°C; 65 ±5% relative humidity 14 light: 10 dark hours photoperiod). The pre-oviposition period was shortest (6.40 ±0.40 days) abundant prey longest (9.20±0.49 scarce prey. oviposition significantly increased with increasing quantity,...
A survey was conducted to explore the aphid pests’ diversity in Kanchanpur district, far-western, Nepal from April 2018 March 2019. total of 15 pests were collected and identified, viz. Acyrthosiphon pisum (Harris), Aphis craccivora (Koch), gossypii (Glover), fabae (Scopoli), nerii Boyer de Fonscolombe, Brevicoryne brassicae (Linnaeus), Lipaphis erysmi (Kaltenbach), Macrosiphum euphorbiae (Thomas), rosae Myzus persicae (Sulzer), Rhopalosiphum maidis (Fitch), padi rufiadominale (Sasaki),...