Anais da Sociedade Entomológica do Brasil
On-line version ISSN 1981-5328
LOPES, Maria T.R.; VENDRAMIM, José D. and THOMAZINI, Ariane P.B.W.. Biology and preference for oviposition of Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae) on leaves of Solanum tuberosum (L.) and S. berthaultii (Hawkes) genotypes. An. Soc. Entomol. Bras. [online]. 2000, vol.29, n.2, pp. 319-326. ISSN 1981-5328. http://dx.doi.org/10.1590/S0301-80592000000200014.
Effects of leaves of two introductions of Solanum berthaultii (L.) wild species, three Solanum tuberosum (L.) cultivars and two S. tuberosum x S. berthaultii hybrids on the biology and ovipositon preference of Phthorimaea operculella (Zeller) were evaluated under laboratory conditions. The growth, fecundity and adult longevity on the hybrids NYL 235-4 and N 140-201, with type A glandular trichomes, were similar to the observed on the cultivars Aracy, Apuã and Itararé. S. berthaultii PI 473331 (with type A and B trichomes) and PI 473334 (with type A trichomes) slightly affected the larval developmental time (PI 473331) and pupal weight (PI 473334). However, in free choice and no-choice tests, these introductions of S. berthaultii were non-preferred for oviposition by P. operculella, while the other genotypes did not affect the insect oviposition.
Keywords : Insecta; Gelechiidae; potato tuber moth; host plant resistance; oviposition non-preference.