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

B. cucurbitae Bhagat and Koul 1999 The seasonal biology of melon fruit fly, B. cucurbitae, was studied during pre-monsoon (April-June),
monsoon (July-September) and post-monsoon (October-December). Field-collected adults of B.
cucurbitae were housed in glass tubes with fresh slices of bottle gourd (Lagenaria siceraria),
examined after 24h and their eggs collected. Eggs were placed on fresh bottle gourd slices kept on
water-soaked filter papers and observed for hatching. Freshly hatched maggots were transferred
on bottle gourd slices in glass tubes. At the onset of pupation, the slices were placed in tubes with
water-soaked sand 50 mesh layer to facilitate pupation. Results revealed that incubation, larval and
pupal periods were lowest during the pre-monsoon (1.00, 4.96 and 6.94 days, respectively)
followed by monsoon and post-monsoon periods. Pre-oviposition and oviposition periods were
lower in pre-monsoon (11.06 and 12.12 days, respectively) than in monsoon and post-monsoon
periods. Adult emergence was highest in the pre-monsoon (80%), followed by monsoon (74.4%)
and post-monsoon (62.7%) periods.
B. cucurbitae Cucumber Assam Borah 1996 Field trials showed that the highest yield of cucumber (87.4 q/ha), with 27.6% infestation by B.
cucurbitae, was recorded in the summer-sown crop (20 March), followed by the kharif-sown crop
(27 June, 59.5 q/ha, 39.1% infestation). In the rabi-sown crop (10 October), the yield was lowest
(27.7 q/ha); infestation was 20.3%.
B. tau, Callantra
sp.
Snake gourd,
ash gourd,
bottle gourd,
pumpkin
Assam Borah and Dutta 1997 Infestations by tephritids were studied on ash gourd (Benincasa hispida), bitter gourd (Momordica
charantia), bottle gourd (Lagenaria siceraria), cucumber, pumpkin (Cucurbita moschata), ridge
gourd (Luffa acutangula) and snake gourd (Trichosanthes cucumerina) in kharif and summer. B.
tau and Callantra [B.] sp. were found infesting these vegetables. Snake gourd had the highest fruit
infestation (62.62%). Larger proportions of marketable fruits (healthy + lightly infested) were
obtained from ash gourd in kharif and bottle gourd in summer. Snake gourd and pumpkin yielded
the lowest proportions of marketable fruits.
C. vesuviana Jujube Bawal, Haryana Dashad et al. 1999 The incidence of ber fruitfly, Carpomyia vesuviana on 13-year-old trees of Zizyphus mauritiana cv.
Gola in Bawal, Haryana, ranged from 12.0 to 78.5% between 1993/94 and 1995/96. The lowest
mean incidence (13.2%) was recorded during the first fortnight of November, while the peak
(71.6%) occurred during the first fortnight of January and was synchronized with the ripening of
fruits. The intensity of incidence was determined by the surviving fruitfly population in preceding
years. Higher fruit fly incidence was recorded when the maximum temperature ranged from 17.0 to
25.0°C and the minimum from 2.3 to 4.8°C. The optimum relative humidity range was 62.0 to
85.5%.
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