Efficacy of newer insecticides against sucking pests of rice fallow blackgram (Vigna mungo L.)

Abstract

A field experiment was conducted to determine the efficacy of different insecticides against sucking pests viz., thrips, Caliothrips indicus Bangall and whitefly Bemisia tabaci Gennadius, infesting blackgram in North coastal Andhrapradesh at Agricultural College, Naira during rabi 2017-2018.The experimental results revealed that all the treatments showed significant differences in reducing the population of sucking pests over untreated check. Among the tested insecticides, thiacloprid 21.7 SC @ 0.0325% was found to be highly effective against thrips by reducing74.80 per cent thrips population followed by acetamiprid 4 % + fipronil 4% @ 2ml l-1 with 70.81 per cent over untreated control, whereas flonicamid 50 WG @ 0.0325% was very effective against the population of whitefly byreducing 72.19 per cent and lowest per cent disease incidence (17.66%) followed by acetamiprid 4% + fipronil 4% @ 2ml l-1 (64.94%) and thiamethoxam 25 WG @ 0.005% (62.21%) which were on par with each other over control.

Validation of Integrated Pest Management Modules against Piercing and Sucking Insect Pest of Rice

“…Divya and Mariappan (2020) revealed that IPM practices was effective in reducing the population of insect pest with minimal effect on natural enemies viz., spiders 10.95/ 10 hill and coccinellid 9.95/ 10 hill and significantly superior over farmers practice. The present finding is in conformity with the result of (Shanmugam et al, 2022) and (Swathi et al, 2018) who reported the component of chemicals with less residues and minimum negative effect of beneficial insects such as thiamethoxam to be effective in lowering the pest population. Gautam et al (2013) also observed the efficacy of botanicals as IPM component when Neem 5% was found effective in managing the incidence of pest and were found relatively safe against predators and parasitoids such as Chrysoperla carnea and Trichogramma chilonis compared with pesticides.…”

Efficacy of New Generation Insecticides with their Economics against Bemisia tabaci (Gennadius) Infesting Bt cotton in Field Condition

“…@ 250 ml/ha was found the most effective to reduce the whitefly, B. tabaci population in chili crop during kharif, 2016 and 2017. Swathi et al, (2018) and Navi et al, (2021) concluded that the study indicated that spraying of pyriproxyfen 10% EW @ 200 g.a.i/ha has recorded significantly higher seed cotton yield (19.43 q/ha) with a maximum per cent reduction in whiteflies (95.28%), aphids (90.04%), thrips (98.78%) and leafhoppers (94.40%), respectively. Suman et al, (2021) revealed that result revealed that afidopyropen 50 g/l DC @ 600 ml/ha was found to be most effective against jassid, aphid and whitefly.…”

Influence of Abiotic Factors on Trap Catch of Gram Pod Borer, Helicoverpa armigera (Hubner) in Redgram, Cajanus cajan (L.) Millsp. Ecosystem

“…In recognition of their nutritional importance, the FAO declared the year 2016 as "The International Year of Pulses," emphasizing the crucial role that pulses play in a healthy diet. India stands as a prominent global hub for pulse cultivation, contributing to approximately 35-36% of the total pulse-growing area and 27-28% of pulse crop production worldwide (Swathi et al, 2018). In India, an impressive 12-14 million tons of pulses are produced annually, utilizing approximately 22-24 million ha of agricultural land for this purpose (Cherif © 2023 Priyanka et al, 2023 mobility, rapid reproduction rate and the ability to enter diapause are key factors that contribute to its status as a major pest of pulses (Fitt, 1989;Lekha Priyanka et al, 2020).…”