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A study was conducted on the toxicity potential of six insecticides (Lesenta 80% WG, Trunk 20% SC, Karate 2.5 EC, Route 57 EC, Refree 5% SC and Thimet 5G) against the sugarcane black bug (C. excavatus) at two different locations in tehsil Kot Addu District Muzaffargarh, Pakistan. Seven treatments including control with three replications were maintained following Randomized Complete Block Design (RCBD). The treatments were applied at their recommended doses and mortality data were recorded before and after 24 followed by 48, 72 and 168 hours of application. The results revealed that all the insecticides significantly suppressed the target pest population compared to control. Route 57 EC (Malathion) was revealed as most effective insecticide due to causing highest mortality in both locations 84.29% and 84.44% followed by Trunk 20 % SC (Clothinadion) with 80.03% and 79.88% mortality of the target pest after 168 hours of application. Whereas Karate 2.5 EC (Lambda cyhalothrin) was evaluated as least effective with 51.95% and 52.97% mortality at both locations, respectively. Our results suggest that Route 57 EC (Malathion) @ 500 ml per acre is effective against sugarcane black bug and can be used for the chemical management of this pest. Keyword: Black bug; Efficacy; Insecticides; Malathion; Sugarcane Introduction Agriculture is the backbone of country and has main role in poverty reduction by providing 38.5% employment and sharing 18.5% to Gross Domestic Product [1]. Sugarcane is one of the important cash crop of Pakistan. It is cultivated on an area of 1.1 million hectares with total production of 62.8 million tones by contributing 0.6% to GDP and 3.1% to agriculture’s value addition [2, 3]. There is lot of constraints between the potential yield and the average yield (47 t ha ) that the farmers are obtaining in Pakistan [4]. In terms of sugarcane production and area the country occupies fifth and sixth position respectively [5].

Evaluating the toxicity potential of some insecticides against sugarcane black bug, Cavelerius excavatus (Hemiptera: Lygaeidae)