European Academic Research ISSN 2286-4822
ISSN-L 2286-4822
Impact Factor: 3.4546 (UIF)
DRJI Value : 5.9 (B+)
Article Details :
Article Name :
Relative Toxicity of Biopesiticide and Insecticide against Sucking Insect Pest on Sunflower
Author Name :
Zakir Ali Bhutto, Aslam Bukero, Fida Hussain Magsi, Abid Ali Soomro, Maqsood Ahmed Chandio, Asrar Mohi-Ud-Din Kashmiri, Naveed Ali Channa, Umair Qureshi, Ammara Rajput
Publisher :
Bridge Center
Article URL :
Abstract :
The field experiment was conducted to determine the efficacy of conventional insecticide Novastar 56 EC and leaf extracts of tobacco varieties Hazropattar and Balkhi as bio-pesticides against sucking insect pests of sunflower. The experiment was laid out on a Randomized Complete Block Design (RCBD) with three replications. Pre-treatment population of sucking insect pests was recoded one day before application and post-treatment after 1st,4th, 7th and 10th day after application. The reduction % in the populations of Amarasca bigutulla bigutulla (Ishida), Bemisia tabaci (Genn.) and Thrip tabaci were calculated for post- treatment intervals. Maximum reduction in the population of A. b. biguttula was recorded as (73.86 %) at 7 DAS in the plot treated with insecticide Novastar 56 EC as compared to bio-pesticides Hazropattar (40.15 %) and Balkhi (34.09 %) leaf extracts at 4 DAS, respectively. The population of Bemisia tabacii was reduced to (76.74 %) at 7 DAS by Novastar. Whereas, leaf extracts of Hazropattar and Balkhi reduced B. tabaci population to (46.32 %) and (38.95 %), respectively at 7 DAS. The population of Thrip was reduced to (71.17 %) at 7 DAS by Novastar followed leaf extracts of Hazropattar (46.40 %) at 4 DAS and Balkhi (18.99 %) at 7 DAS. Similar trend of reduction in the population of sucking insect pests was recorded after 2nd spray. Maximum reduction in the population of A. b. biguttula was observed as (70.69 %) in the plot treated with Novastar followed Hazropattar (45.52 %) and Balkhi (39.07 %), respectively. Maximum reduction (77.67%) in the population of whitefly was recorded in the plots treated with Novastar followed by Hazropattar (44.95 %) and Balkhi (38.87 %). The population of Thrip was reduced to (76.39 %) by Novastar followed Hazropattar (46.44 %) and Balkhi (22.31 %), respectively. The analysis of variance showed significant difference in the efficacy of insecticide and Bio-pesticides at (P<0.05). The maximum yield of sunflower was obtained from the plots treated with insecticide Novastar 56 EC followed leaf extracts of Hazropattar and Balkhi, respectively. It is concluded that insecticide and bio-pesticides significantly reduced the population of sucking insect pests. It is suggested that bio-pesticides are environmentally safe and should be sprayed with a gap of short intervals to avoid the infestation of sucking insect pests on sunflower.
Keywords :
Toxicity, Insecticide, Bio-pesticide, Sucking insect Pests, Sunflower

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