Biology and Predatory Potential of Harmonia octomaculata (Fabricius)

Anglický jazyk

Biology and Predatory Potential of Harmonia octomaculata (Fabricius)

Vydavateľstvo: LAP LAMBERT Academic Publishing
Rok vydania: 2019
Formát: Paperback
Rozmer: 220 x 150 mm
Jazyk: Anglický jazyk
ISBN: 9786200454133

Na objednávku, dodanie 2-4 týždne

57.33 €

bežná cena: 63.70 €

O knihe

This book gives brief information on Biology and predatory potential of spotted ladybird beetle, Harmonia octomaculata (Fabricius) on lucerne aphid, Acyrthosiphon pisum (Harris) under laboratory condition. The female of H. octomaculata laid eggs singly or in cluster of 21 to 52 eggs. The mean incubation period was 3.44 ± 0.50 days. The average hatching percentage was 94.37 ± 2.00 per cent. The larvae of H. octomaculata passed through four instars. The total larval duration was 9.42 ± 0.95 days. The average pre-pupal and pupal duration were 1.1 ± 0.3 and 4.14 ± 0.57 days, respectively. Male and female were lived 46.14 ± 1.69 and 53.64 ± 1.97 days, respectively. H. octomaculata is a very active and voracious predator. The larva consumed 183.96 ± 17.97 A. pisum aphids during its total larval developmental period. The total consumption of H. octomaculata during entire lifespan was 1708.37 ± 58.63 aphids.