“Key Informant Survey” of Production, Value, Losses and ... - DfID

B. zonata Guava Haryana Rana et al. 1990 Among 20 guava cultivars tested in the field in Haryana, Nasik and China Surkha were relatively least susceptible to
B. zonata, having 20%.
Carpomyia
vesuviana
B. dorsalis,
Dichocrocis
punctiferalis
Carypomyia
vesuviana
Carpomyia
vesuviana
Carpomyia
vesuviana
Jujube Jodhpur,
Rajasthan
Sachan 1984 Damage to the fruits of 4 improved varieties of ber (Ziziphus jujuba [Z. mauritiana]), namely Seb, Jogia, Gola and
Mundia-Marhera, by the tephritid Carpomyia vesuviana was assessed at harvest in the 1973-74 season at Jodhpur,
Rajasthan, India, where the fruit fly is a serious pest. The results showed that 3.75, 7.68, 16.60 and 19.6% of the
fruits of these varieties were damaged, respectively. Observations on 20 varieties that had received 3 applications
of sprays containing 0.02% parathion in the 1st and 4th weeks of November and in the 3rd week of December (0.5
to 7 ml insecticide/tree 5 years old) indicated 98-100% protection of fruits against damage by the fruit fly.
Guava Punjab Sandhu et al. 1979 The incidence of B. dorsalis and Dichocrocis punctiferalis on the fruit was determined in 9 guava cvs. The former
ranged from very low in the cvs Red Flesh and Seedless to very high in the cv. Apple and the latter from very low in
the cvs Guinea and Red Flesh to very high in the cv. Seedless
Jujube New Delhi Sharma et al. 1998 Thirty varieties of ber (Zizyphus mauritiana) were screened for varietal resistance against Carpomyia vesuviana in
1989-91 in New Delhi. Regular observations to record the fruit infestation were continued till harvesting. The
cultivars were categorised into different grades of susceptibility, considering the per cent fruits damaged on the
basis of number and weight. The categories were: totally immune, highly resistant 1-10%, resistant 11-20%,
moderately resistant 21-30%, moderately susceptible 31-40%, susceptible 41-50%, and highly susceptible >50%.
None of the cultivars was immune to the pest. However, cv. Tikdi and Illaichi were highly resistant in both the years.
Cv. Umran, Tas Bataso, Deshi Alwar, Kishmis, were resistant or moderately resistant. The fruit of cultivars with high
infestation and graded highly susceptible included Akhrota, Bagwadi, Gola, Katha Rajasthan, Dandan, Seo and
Laddu.
Jujube Singh 1984 Data are presented on the extent and severity of fruit infestation by Carpomyia vesuviana on 25 Zizyphus [Ziziphus]
mauritiana cultivars, averaged over 3 years. The extent of infestation varied among cultivars (from 6.7% in Tikadi to
73%), indicating that flies prefer certain cultivars for egg-laying. Eggs/fruit did not vary significantly, but the
percentage of larvae hatched varied among cultivars, indicating varying degrees of antibiosis. There was a positive
correlation between percentage fruit infestation and percentage hatching (r = 0.9038).
Jujube Rajasthan Singh and
Vashishtha
1985 Field trials were carried out in Rajasthan, India, in 1979-82 to assess the resistance of some cultivars of ber
(Ziziphus mauritiana) to attack by the tephritid Carpomyia vesuviana. The most susceptible varieties were Dandan
Gola, Gola Gurgaon No. 3, Kaithli Hissar and Kakro Gola, while Ilaichi was moderately resistant and Tikadi was
resistant
Integrated Management of Fruit Flies in India: Knowledge Review 46 of 110