Efficacy of PB Ropes (Synthetic Sex Pheromone) against Pink Bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelichidae), Destructive Cotton Pest, in different Ecological Zones of Punjab, Pakistan
Efficacy of PB Ropes (Synthetic Sex Pheromone) against Pink Bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelichidae), Destructive Cotton Pest, in different Ecological Zones of Punjab, Pakistan
Syed Ismat Hussain1, Muhammad Ramzan Asi1, Habbib Anwar1, Faqeer Ahmad1, Ateeq ur Rehman2*, Muhammad Shahid3, Syed Atif Hasan Naqvi2*, Ummad ud Din Umar2, Muhammad Asif Zulfiqar4, Memuna Ijaz1 and Hafiz Usman Shakir1
ABSTRACT
The pink bollworm Pectinophora gossypiella (Saunders) have the ability to camouflage themselves with in rosette flowers and bolls and can reduce cotton yield up to 30%. It is considered to be a critically important pest of cotton all over the world. Field trials were conducted in different districts; Vehari, Rajanpur, and Mianwali, of Punjab-Pakistan during 2017 to evaluate efficacy of synthetic sex pheromone [ZZ/ZE-7, 11-Hexadecadiene-1-yl-Acetate] impregnated ropes by using PB rope L dispensers at @ 100/acre, at first pin square stage to cause mating disruption. Performance comparison of control fields compared to PB rope treated fields was assessed throughout cropping period in different ecological zones using Analysis of Variance and Tukey multiple comparison means tests indicated a 95 % reduction in moth trap catches from July to October, in all the tested ecological zones. The percentage flower and boll damage in the control fields was significantly higher than those in the PB ropes fields. There were no significant differences in moth catches, rosette flower percentage or left over boll damage %age among different Tehsils and varieties. However significant differences were observed in boll damages among Tehsils and varieties. Our studies showed significantly lower damage levels in left over bolls at the time of harvest and higher overall cotton yield in PB rope plots compared with control plots.
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