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Title: OVIPOSITION PREFERENCE AND DEVELOPMENT OF NEOLEUCINODES ELEGANTIS (GUENEE) (LEPIDOPTERA: CRAMBIDAE) ON TOMATO GENOTYPES

Author
item DE SOUZA, C - UNIV CAMPOS RJ, BRAZIL
item VIANA-BAILEZ, A - UNIV CAMPOS RJ, BRAZIL
item BLACKMER, JACQUELYN

Submitted to: Entomology International Congress Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 6/1/2000
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Lycopersicon hirsutum f. hirsutum (Hir) and L. hirsutum f. glabratum (Gla) have been shown to be resistant to several insects, primarily due to their high densities of glandular trichomes and defensive allelochemicals. A moderate level of resistance against N. elegantalis (NE) has been reported for the cultivars Angela Hoper (Ah) and Roma VF (Rvf); however, a susceptible cultivar, Santa Clara (Sc) is widely planted throughout Brazil The presence of either antixenotic and/or antibiotic resistance to NE was examined under greenhouse conditions using choice and no-choice tests with the genotypes Hir, Gla, Ah, Rvf and Sc. Choice tests were setup in a randomized block design with 5 genotypes, 4 blocks, and 3 plants/ genotype/ block. Oviposition preference and development of NE were used to characterize resistance. NE did not deposit eggs on Hir or Gla, suggesting that these two genotypes may possess traits that interfere with oviposition. NE exhibited a significant preference, with regards to oviposition, for Ah over either Sc or Rfv fruits. Significant differences were also observed among these cultivars for the larval-pupal period and pupal weights. No differences in egg hatch or viability, larval viability, pupal period or viability, sex ratio or adult viability were observed among the cultivars tested.