Performance of frontline demonstrations on integrated management of fall armyworm in maize at Thoothukudi, Tamil Nadu
Year: 2023
Type: article
Abstract: Maize (Zea mays) is an important crop cultivated in Thoothukudi district of Tamil Nadu. ICAR - SCAD Krishi Vigyan Kendra, Thoothukudi, Tamil Nadu conducted frontline demonstrations on fall armyworm management in maize at north Karaseri village of Karunkulam block, Tamil Nadu during rabi season of 2019-20. The integrated management of fall armyworm in maize strategies included summer ploughing, border crop with sorghum (2-4 rows), seed treatment with cyatranilprole 19.8 per cent + thiamethoxam 19.8 per cent (Fortenza Duo 480FS) @ 2 ml/kg, installation of pheromone traps @ 4/acre at the time of sowing, collection and destruction of egg masses (8th day onwards), azadirachtin 10,000 ppm @ 1 ml/l (8-15 days after crop emergence), if infesation was 5-10 per cent, spray of Bacillus thuringiensis formulation @ 2 ml/l or Metarhizium anisopliae @ 2 ml/l or Beauveria bassiana @ 5 ml/l and if infestation was more than 10 per cent, spray of emamectin benzoate 5SG @ 0.4 g/l or spinetoram 11.7SC @ 0.3 ml/l (30-60 DAS). The results revealed that adoption of IPM practices recorded the lower incidence of fall armyworm (16.0%) as compared to the farmers’ practices (29.0%). Similarly, higher population of natural enemies (coccinellid population – 0.30 grubs and adult/plant) was recorded in IPM plots compared to farmers’ practice (0.11 grubs and adults/plant). IPM demonstration plots recorded higher yield (37.5 q/ha), net return (Rs 38,000/ha) and benefit-cost ratio (2.03).
Author: PK Muthu Kumar
Institution: Indian Council of Agricultural Research
Language: English
Subfield: Insect Science
Domain: Life Sciences
SDGs: Zero hunger, Life on land
Open Access status: bronze
OpenAlex ID: W4366433075