Effect of different newer pesticides on aphid population of summer okra

Abstract

The studies on bio-efficacy of aphid population showed quite promising results and from the pooled data at first spray, the results revealed that all the treatments proved their superiority over untreated control showing imidacloprid 70WG as the most effective treatment followed by thiamethoxam 25 WG, fipronil 5SC and diafenthiuron 50WP. The second spray results showed that thiamethoxam 25WG, imidacloprid 70WG and fipronil 5SC proved to be the best treatments with maximum reduction of population and were found at par with each other.

Evaluation of effect of non-pesticidal methods on population of sucking pest complex on okra in comparison with chemical control

“…Significantly maximum aphids over all the treatment was observed in treatment T 8 (Control) 14.51 aphids per leaf and was at par with treatment T 2 (Light trap only) recording 13.05 aphids per leaf (Table.2 & Fig.1). Our results supported by findings ofJadhav et al (2016) …”

“…1). [8] proved the superiority of imidacloprid 70 WG over other treatments against aphid population on okra at 3, 7 and 14 days after spraying, respectively. Preetha et al (2007) [15] revealed that significantly imidadoprid 17.8 SL at the recommended dose of 25 g a.i./ha was effective in controlling the population of bhendi aphids up to 25 days.…”

Predation and Control Effect of Eupeodes corollae Fabricius (Diptera: Syrphidae) on Leguminous Plant Aphids

“…At present, the treatment of aphids mainly relies on chemical pesticides [19,20], which not only lead to pesticide resistance in aphids but also cause pesticide residues, environmental pollution, and the killing of non-target insects [21,22], which does not meet the developmental requirements of modern green agriculture. In order to better carry out green pest control and maintain the sustainable development of ecosystems, it is urgent to seek biological control measures for aphids [11], and the use of predatory natural enemies is one of the important methods of achieving this [23,24].…”