Surveillance of Apple Scab at Balochistan and Its <i>Invitro </i>Management through Synthetic Fungicides

Apple is one of the most widely cultivated specie in the genus Malus × domestica. It is one of the most important temperate fruits of Balochistan. Several diseases attack apple caused by fungi, bacteria, viruses, and nematodes. Apple scab is one of the major diseases of apple throughout the temperate regions of the world. The study was conducted to get acquainted with the distribution, incidence, and severity of apple diseases, a systematic survey was carried out in four districts of uplands of Balochistan (Killa Saifullah, Pishin, Killa Abdullah and Quetta) to check the disease incidence. An experiment was conducted to control the pathogen in vitro conditions with different concentrations of fungicides. The research was managed in randomize complete design (CRD) and mycellial growth was examined. However, the efficacy of some selected fungicides, such as (Proctor plus 50%EC, Aerosal 70%WP, Puslan 72%WP, Dew 25% EC and Stroll plus 30% SC) with three concentrations (150, 250, 350 ppm) against apple scab. The results manifested that among all fungicides Proctor plus 50%EC was more effective in dropping the linear colony growth of the fungus, whereas Dew 25% EC and Stroll plus 30% SC) appeared moderately effective, and Aerosal 70%WP, Puslan 72%WP were less effective. The present study revealed that apple scab could be effectively managed Proctor plus 50%EC fungicide, which could be future prospective in controlling the apple scabe under field conditions and data was statistically analyzed.