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Abstract
Aim:
To assess the impact of various temperature regimes on the biology and
predatory potential of ladybird beetle, Coccinella septempunctata
under laboratory conditions.
Methodology: Five treatments and four replications were used for
observing the biology and predatory potential on different temperature
regimes under laboratory conditions on field-collected mustard aphid, Lipaphis
erysimi as a host.
Results:
Among different temperature regimes, the maximum fecundity and hatchability
recorded were 250.67±9.50 and 80.07±0.95, respectively, at 30±2oC.
Total grub and adult maximum predatory potential were 238.00±0.50,
508.00±2.65 and 556.33±2.84 at 30±2oC and the minimum were
180.00±5.00, 446.00±12.76 and 493.33±15.28, respectively, at 40±2oC.
Interpretation: The present study
revealed that 30±2oC temperature was most congenial for the
development of Coccinella septempunctata under laboratory conditions
and it could be used for mass multiplication of this aphidophagous insect.
Key words: Coccinella septempunctata, Ladybird beetle,
Predatory potential, Temperature regimes
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