Journal of Pest Science (2006) 79, 175-179

G. Angeli and S. Simoni (2006)
Apple cultivars acceptance by Dysaphis plantaginea Passerini (Homoptera: Aphididae)
Journal of Pest Science 79 (3), 175-179
Abstract: The development time, longevity, and fecundity of Dysaphis plantaginea were measured on six apple cultivars (Golden delicious, Red delicious, Renetta canada, Florina querina, Golden lasa, and Golden orange) under controlled conditions, in order to establish the life tables of D. plantaginea on the different cultivars and to evaluate the tolerance of the cultivars against this pest. The intrinsic rates of increase (r _m) were 0.07 and 0.11 day⁻¹ on F. querina and G. orange, respectively. On the other four cultivars, rates ranged between 0.22 and 0.26 day⁻¹, with the maximum value registered on G. lasa. All the biological and demographic parameters evaluated, i.e. survival of larvae (M = 5.8-72.2%), mean generation time (T = 14.94-20.62 days), and net reproduction rate (R ₀ = 4.23-47.37), show that G. orange and F. querina are tolerant cultivars while R. delicious, R. canada, G. lasa, and G. delicious are susceptible hosts.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Dysaphis plantaginea	Apple (Malus)