Studied on seasonal incidence and eco-friendly management of pea leaf miner Chromatomyia horticola Goureau infesting pea
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Date
2022-12-08
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College of Horticulture and Forestry Neri, Hamirpur (H.P.)
Abstract
The present investigation entitles “Studied on seasonal incidence and eco-friendly management of pea leaf miner Chromatomyia horticola Goureau infesting pea” were carried out in the College of Horticulture and Forestry, Neri(Hamirpur), Himachal Pradesh. Experiments were conducted and collect data on seasonal incidence, adult and pupa emergence and management of pea leaf miner using different treatments. The incidence of pea leaf miner was maximum in the 4th week of March (60.86%) and followed by 1st week of April (56.42%). Leaf infestation was positively and significantly correlated with average maximum temperature (0.90) and average minimum temperature (0.87). Rainfallwas negatively and non-significantly correlated (-0.20) with mean leaf infestation whereas average relative humidity was negatively and significantly correlated (-0.53). The order of efficacy of different treatments used for management of pea leaf miner was spinosad @ 0.02 per cent, Agni astra @ 5 percent, Bacillus thuringiensis @ 0.1 percent, neem oil @ 5ml/l, leaf extract of Melia azadirach @ 10 percent and leaf extract of Melia Dubia @ 10 percent. Average maximum reduction (46.77%) in the infestation over control was found in spinosad @ 0.02 percent followed by (38.27%) reduction in Agni astra @ 5 percent.