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Firake, Dnyaneshwar M.
- Seasonal Activity of Spodoptera Frugiperda (j. E. Smith) in Maize Agroecosystem of South India
Abstract Views :156 |
PDF Views:108
Authors
Palam Pradeep
1,
Sharanabasappa S. Deshmukh
1,
H. G. Sannathimmappa
2,
C. M. Kalleshwaraswamy
1,
Dnyaneshwar M. Firake
3
Affiliations
1 Department of Entomology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga 577 204, IN
2 Agricultural and Horticultural Research Station, Kathalagere 577 219, IN
3 ICAR-Directorate of Floricultural Research, Pune 411 005, IN
1 Department of Entomology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga 577 204, IN
2 Agricultural and Horticultural Research Station, Kathalagere 577 219, IN
3 ICAR-Directorate of Floricultural Research, Pune 411 005, IN
Source
Current Science, Vol 123, No 1 (2022), Pagination: 81-86Abstract
The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), was first detected in India in 2018 and seriously threatened the maize crop. In South India, we studied the population dynamics of FAW moths and the damage caused by the larvae in maize fields from 2019 to 2020. In the kharif season, the highest male moth catches occurred in July while in rabi season, the highest catches occurred in November. It was found that the early whorl stage (EV-V6) of maize crop was susceptible to FAW due to its high larval load, whereas the late whorl stage (V7-VT) of the crop showed greater leaf damage in both yearsKeywords
Damage Rating, Fall Armyworm, Maize Crop, Pheromone Trap Catches, Population FluctuationFull Text
References
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- Navik, O. et al., Damage, distribution and natural enemies of inva-sive fall armyworm Spodoptera frugiperda (J. E. Smith) under rain-fed maize in Karnataka India. J. Crop Prot., 2021, 143, 1–7.
- Baudron, F., Zaman-Allah, M. A., Chaipa, I., Chari, N. and Chin-wada, P., Understanding the factors influencing fall armyworm (Spodoptera frugiperda J. E. Smith) damage in African smallholder maize fields and quantifying its impact on yield: a case study in Eastern Zimbabwe. Crop Prot., 2019, 120, 141–150.
- Diversity and Role of Flower Visitors in Onion Seed Production
Abstract Views :102 |
PDF Views:75
Authors
Affiliations
1 Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri 413 722, IN
2 Agricultural Entomology, ICAR-Directorate of Floricultural Research, Pune 411 036, IN
1 Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri 413 722, IN
2 Agricultural Entomology, ICAR-Directorate of Floricultural Research, Pune 411 036, IN
Source
Current Science, Vol 124, No 3 (2023), Pagination: 304-312Abstract
Onion flowers attract a wide range of visitors, including pollinators. Many factors influence the abundance of floral visitors in onion, such as flower size, shape, colour, weather parameters and the availability of floral rewards. Quality seed production in onion (Allium cepa L.) is mainly driven by insect pollinators because of its protandrous nature and cross-pollination. The type of flower visitors, their numbers and the time of their visitation determine the pollination efficiency. Bees are the major pollinating agents in onions under natural conditions. However, using chemical pesticides against pests and diseases of onions during bloom decreases the diversity in and around crop fields. Anthropogenic factors like urbanization could have negative impacts on insect pollination services. Therefore, it is critical to adopt a sustainable approach to retain and conserve the existing insect pollinators and their diversity in the onion ecosystem. In this study, we review the research work done so far on the diversity and role of flower visitors and pollinators in onion seed production and the various factors affecting their survival and services in the onion ecosystem.Keywords
Floral Biology, Foraging Ecology, Onion, Pollinators, Species Diversity.Full Text
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