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Seasonal incidence, biology and management of fall army worm (Spodoptera frugiperda, J.E. Smith) on fodder maize

Year: 2023

Type: article

Abstract: Seasonal incidence of fall army worm in maize at Dharwad indicated its occurrence both in and kharifrabi seasons The incidence was more during the season. Highest incidence of 50% was noticed during last . kharif week of August and second peak incidence of 30% was noticed during last week of December. Correlation between seasonal incidence of fall army worm and weather parameters indicated that there was a significant negative correlation with the rainfall (-0.60**) and morning humidity (-0.50*). Biology of fall army worm indicated that it completed its total life cycle in 31-44 days on maize comprising of six larval instar stages. Among the entomo-pathogens tested against the fall army worm,(2 x 10 cfu/g)Metarhizium (Nomuraea) rileyi 8 was found to be superior and it was at par with neem formulation (azadirachtin 3000 ppm) @ 5ml/l

Source: Range Management and Agroforestry

DOI: 10.59515/rma.2023.v44.i2.24

Authors: N.S Kulkarni, M.C Keerth, B.G Shivakumar

Institutions: Indian Grassland and Fodder Research Institute, Indian Council of Agricultural Research

Language: English

Topic: Insect Pest Control Strategies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

OpenAlex ID: W4390447078

FWCI:

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