LABORATORY AND FIELD EFFECTIVENESS OF TEPHRITID FRUIT FLY BAITS IN GUJARAT AND ELSEWHERE IN INDIA
Three studies assessed the attraction of various food baits to Tephritid fruit ﬂies. In pairwise comparisons in laboratory cages of melon ﬂies, fermentation signiﬁcantly enhanced the attractiveness of white jaggery but not of banana. “Black" jaggery was signiﬁcantly superior" to “white”. A study using traps in gourd ﬁelds found that sugar sources such as papaya, jaggery, banana and guava performed well, meat and ﬁsh interrnediately, and tucnrbit oviposition hosts least well. In a study in a mang0/ sapota orchard near Ganthvi. local robrrsta banana slices caught more ﬂies than protein hydrolysale, but this was not signiﬁcant. These ﬁndings are compared with other bait studies elsewhere in India, both in previous research and as part of the same project. It is concluded that, overall, banana and jaggery, at 10% (masszvolume) inwater and in isolation or combination (and with added fresh fntit when this is seasonally available and inexpensive), are generally cost-effective baits for Tephritid management in India.
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