21 Kas 2024 Perşembe
Biology and morphometrics of Phalera raya Moore (Lepidoptera: Notodontidae) infesting Quercus serrata Thunb.
Abstract :The
hairy caterpillar, Phalera raya Moore
is a major defoliator infesting Quercus
serrata, the primary food plant of oak tasar silkworm, Antheraea proylei. Studies on biological parameters of P. raya revealed that females laid light
brown colour eggs and fecundity was 610 ± 24.80 eggs
per female. Incubation period of the eggs was 8.4 ±
0.24 days and measured 0.91 ± 0.03 mm in diameter. The larvae passed
through 6 larval instars. The duration of the 1st, 2nd, 3rd,
4th, 5th and 6th instar was 5.8
± 0.37, 8.0 ± 0.45, 6.2 ± 0.37, 6.6 ± 0.24, 6.8 ± 0.20 and 11.0 ± 0.32 days
respectively. Larval and pupal period was 43.4
± 1.81 and 13.4 ± 0.67 days. The mean
adult longevity was 4.5 ± 0.43 days and the
average length and breadth of the adult was 30.50±0.10
mm and 7.55±0.24 mm respectively. The total developmental period was
completed in 65 - 72 days.
Phalera raya, biology, morphometric,
developmental stages, Quercus serrata