Screening of ber (Ziziphus mauritiana Lamk) germplasm against Carpomyia vesuviana under Semi-arid condition

The study was carried out to evaluate thirty varieties of ber which were screened in vivo conditions for their resistance to fruit fly for two consecutive years. Investigation revealed that none of the ber varieties were identified as completely free from the attack of fruit fly. Based on the pool mean of fruitfly per cent damage,the varieties likeTikadi, Umran and Ilaichi had fruits infestation less than 10 per cent, therefore, categorized as highly resistant; varieties Baghwadi, Hussain rejo, Jogia, Kali, Kathaphal, Kheera, Sukhawani and Tabes taso possessed mean fruit infestation from 11-20%, therefore, categorized as resistant, varieties Akhrota, Ashapuri-2, Chandni supari, Chhuhara, Chonchal, Darakhi, Gola, Gutka, Kishmish, Lakhan, Mehroon, Morchia, Nilgiri, Noki, Ponda, Sev and Thornless had fruit infestation between 21-50%, therefore, categorized as moderately resistant; variety Kaithli had fruit infestation above 51%, categorized as susceptible.