Applied Entomology and Zoology (2012) 47, 199-205

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Ali Golizadeh and Vahid Jafari-Behi (2012)
Biological traits and life table parameters of variegated lady beetle, Hippodamia variegata (Coleoptera: Coccinellidae) on three aphid species
Applied Entomology and Zoology 47 (3), 199-205
Abstract: The aphidophagous ladybird beetle, Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), is a dominant predator in various crop systems. Its life history was studied when fed on three aphid prey, viz. Aphis gossypii Glover, Aphis fabae Scopoli and Macrosiphum rosae (L.), under laboratory conditions, 25 ± 1 °C, 65 ± 5 % RH and a photoperiod of 16L:8D. The immature development period was shortest (15.2 days) when A. gossypii was used as prey and longest (18.9 days) on A. fabae. Adult coccinellids had the shortest longevity on A. fabae (64.8 days). The higher and lower mean daily fecundity was recorded for A. fabae (12.4 eggs) and M. rosae (6.2 eggs), respectively. The highest (291.0 eggs) and lowest (183.2 eggs) net reproduction rates (R 0) were observed on A. fabae and M. rosae, respectively. Mean generation time (T) on rose aphid was significantly longer (33.4 days) than on the two other preys. The intrinsic rate of increase (r m) was affected by the R 0 value, and it was highest on A. fabae (0.183) and lowest on M. rosae (0.156). Based on r m as an index of suitability of prey species, A. fabae was the most suitable prey for H. variegata. Our finding may provide basic information for developing aphid biological control programs.
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Link to article at publishers website
Database assignments for author(s): Ali Golizadeh

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
rearing/culturing/mass production

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Aphis gossypii
Aphis fabae
Macrosiphum rosae
Hippodamia variegata (predator) Aphis gossypii
Hippodamia variegata (predator) Aphis fabae
Hippodamia variegata (predator) Macrosiphum rosae