Neotropical Entomology (2011) 40, 489-494

M.S. Santos, J.D. Vendramim, A.L. Lourenção, R.M. Pitta and E.S. Martins (2011)
Resistance of citrus genotypes to Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)
Neotropical Entomology 40 (4), 489-494
Abstract: The development and reproduction of the citrus leafminer (CLM), Phyllocnistis citrella Stainton, were evaluated in six citrus genotypes in order to identify genotypes with resistance traits that could be applied in a program for the development of citrus varieties resistant to the citrus leafminer. Tests were conducted under controlled laboratory conditions (25 ± 1ºC, 70 ± 10% RH, and 14h photophase). Seedlings of each genotype tested were infested with eggs obtained from a stock colony of CLM maintained on 'Cravo' lemon (Citrus limonia L. Osbeck), and the duration and survival of the eggs, larval and pupal stages, pupal size and weight, fecundity and longevity of adults, and sex ratio were evaluated. No influence was observed on the duration and survival of eggs, larvae and pupae of P. citrella. However, pupae obtained in the hybrid C x R₄ were significantly smaller and lighter than pupae from the remaining treatments. Adult females from the hybrids C x R₄ and C x R₃₁₅ were the least fecund. However, the lowest value for the corrected reproductive potential (CRP) was recorded in the hybrid C x R₃₁₅, suggesting that this genotype is the least favorable for the development and reproduction of CLM. On the other hand, the highest CRP value obtained in the 'Rugoso' lemon confirms the susceptibility of this genotype, indicating it as the most suitable for CLM.
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Database assignments for author(s): José Djair Vendramim, André Luiz Lourencao

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phyllocnistis citrella	Citrus (genus)