FRUIT FLY FAUNA OF HIMACHAL PRADESH AND MANAGEMENT OF SOME OF THE MAJOR SPECIES
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Date
2019-07
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UHF,NAUNI
Abstract
ABSTRACT
The present investigations on “FRUIT FLY FAUNA OF HIMACHAL PRADESH
AND MANAGEMENT OF SOME OF THE MAJOR SPECIES” were conducted during
2013-2016. In the present study, during the survey of fruit flies in Himachal Pradesh, 10 species
of tephritid fruit flies were recorded from different locations of Himachal Pradesh. Acidoxantha
sp. was captured in methyl eugenol traps, which is a new record from Himachal Pradesh and B.
nigrofemoralis was first reported from the host i.e. the infested peach from India. B. latifrons,
was reported from infested fruits of Solanum nigrum (Makoi/Kalihari) which is a first record
from Himachal Pradesh. The bio-efficacy trial conducted on cucumber, tomato and mango
revealed application of lambda cyhalothrin @ 0.008 and 0.004% and spinosad (0.004%) proved
effective in checking fruit fly infestation. Azadirachtin (0.02%) was comparable to the
recommended insecticide i.e. malathion (0.1%) in checking the fruit fly infestation. Among five
different woods, namely meranti, eucalyptus, deodar, plyboard and mango, plyboard traps
(methyl eugenol based) showed better efficacy as reflected by highest fruit fly catch in the
peach and mango orchards. When shapes were compared, rectangular cuboid plyboard traps
performed better in comparison to square cuboid ones. When comparative efficacy of malathion
and spinosad as an insecticide in methyl eugenol and cue-lure based traps were studied, it was
observed that the spinosad based traps had better efficacy in fly trapping as compared with
malathion in both types of attractant traps. In the laboratory studies, phloroglucinol 200 mM)
when fed in the diet to B. tau and B. cucurbitae resulted in lowest oviposition. The ovaries were
found clumped and the eggs laid were also deformed. Among different absorbent materials,
initially no difference was observed in materials namely absorbent cotton, non-absorbent cotton
and sponge, but later on after 5 days the results recorded in sponge based material were
encouraging.
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