The bio efficacy of some new insecticides and their combinations against pod borer infesting pigeonpea was evaluated at Agronomy farm, RCA, Udaipur using four dosages of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% @ 150, 200, 250 and 300 ml/ha along with Lambdacyhalothrin 4.9 % CS @ 500 ml / ha, Chlorantraniliprole 18.5% SC @ 162 ml / ha, Profenophos 50 EC @ 1500 ml / ha and Indoxacarb 14.5 SC @ 517 ml / ha. Among the various insecticides, lowest population of larvae with a mean of 3.65, 4.16, 2.25 and 2.16 larvae/10 plants was recorded in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha as against 35.10, 37.0, 39.55 and 38.47 larvae/10 plants in untreated control during 2011 at 7 and 14 days after first and second spray, respectively which was found at par with Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 200, and 250 ml/ha. Similar results were also recorded during 2012 with larval population in the range of 2.10 &ndash;7.16/ 10 plants in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% treated plot @ 200,250 and &nbsp;300 ml/ha. Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300ml/ha caused highest reduction in pod borer &nbsp;larvae during both the years with a mean reduction of 91.86 and 89.14 per cent during kharif 2011 and 2012, respectively. The seed yield among different treatments ranged from 6.75 to 9.50 and 7.87 to 10.78q/ha against 5.35and 6.45q/ha in untreated control during kharif 2011 and 2012, respectively. The highest seed yield of 9.50 and 10.78 q/ha/ha &nbsp;was recorded in case of spray of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha during kharif 2011 and 2012, respectively.&nbsp;

Bioefficacy of novel insecticides against pod borer,&nbsp;(Helicoverpa armigera Hubner) in pigeonpea

A field study was conducted to evaluate the efficacy of five insecticides viz., Lambdacyhalothrin 5 EC, Novaluron 10 EC, Clothianidin 50 WDG, Indoxacarb 14.5 SC and Quinalphos 25 EC (standard check) against gram pod borer (Helicoverpa armigera H.) on chickpea (Cicer arietinum L.) variety Pratap Channa-1. Lambdacyhalothrin 5 EC gave the highest reduction in the larval population of pod borer and was found statically at par with Indoxacarb 14.5 SC. The next effective treatments were Clothianidin 50 WDG and Quinalphos 25 EC, However, Novaluron 10 EC @ 750ml/ha proved to be the least effective treatment as it resulted in lowest per cent reduction in the larval population. Highest cost benefit ratio of 1:2.10 was obtained from Lambdacyhalothrin 5 EC followed by Indoxacarb 14.5 SC (1: 1.65). The next cost effective treatment in terms of CBR was Quinalphos 25 EC (1:1.64), whereas, Novaluron 10 EC (1:1.15) and Clothianidin 50 WDG @ 500g/ha (1:0.66) could not show any conspicuous gain over cost.&nbsp;

Evaluation of new generation pesticides to control pod borer,&nbsp;Helicoverpa armigera (Hubner) infesting chickpea

Background: Thiamethoxam is a synthetic organic insecticide belong to The most significant new class of pesticides created in the last thirty years is neonicotinoids. This study&rsquo;s objective was to determine the effect of thiamethoxam, lambda cyhalothrin and their combination on biochemical parameters, the levels of free radicals and enzymes activities liver of male. 
 
Methods: Forty Rats (150-170 g) were used animals were separated into four groups, each with ten rats. The Gp1 was used as control, the Gp2 was used to study the effect of thiamethoxam for 3weeks, the Gp3 was employed to examine the impact of&nbsp; lambda cyhalothrin&nbsp; for 3 weeks and the Gp4 was used to research the impact of thiamethoxam and lambdacyhalothrin for 3 weeks.&nbsp; 
 
Result: Treatment with thiamethoxam (TMX), lambda cyhalothrin (LC) and their combination (TMX+LC) lowered the activities of glutathione s-Trasferase , Superoxide Dismutase, Catalase, Glutathione Peroxidase , Glutathione Reductase and decreased glutathione concentration. increased liver thiobarbituric acid reactive compounds and hydrogen peroxide of liver as compared to control. Rats treated with both TMX and LC showed more pronounced effect. Rats given the treatment showed a substantial drop in protein levels TMX, LC and their combination as compared to control.&nbsp; Treatment with TMX, LC and their combination generated a considerable rise in lactate dehydrogenase and a significant reduction in the activities of alkaline phosphatase, aspartate aminotransferase and alanine aminotransferase in rat liver homogenates. Histological examinations showed changes and this proved the Biochemical disruptions happened as a result of to TMX and/or LC toxicity in rat liver.

Bioefficacy of novel insecticides against pod borer, (Helicoverpa armigera Hubner) in pigeonpea

Evaluation of new generation pesticides to control pod borer, Helicoverpa armigera (Hubner) infesting chickpea

Hepatotoxicity of Oral Sub-chronic Exposure to Thiamethoxam and Lambda Cyhalothrin in Rats