%0 Journal Article
%T Feeding non-preference by Spodoptera frugiperda and Spodoptera eridania on tomato genotypes N o prefer那ncia para alimenta  o em gen車tipos de tomateiro por Spodoptera frugiperda e Spodoptera eridania
%A Bruno Henrique Sardinha de Souza
%A Daline Benites Bottega
%A Anderson Gonˋalves da Silva
%A Arlindo Leal Boiˋa J迆nior
%J Revista Ceres
%D 2013
%I Universidade Federal De Vi?osa
%X Larvae of the genus Spodoptera spp. are highly polyphagous and can cause economical losses in several agricultural crops. Given their growing importance in the tomato crop, especially for industry, this work aimed to evaluate the feeding non-preference by larvae of Spodoptera frugiperda (J. E. Smith, 1797) and Spodoptera eridania (Cramer, 1782) on tomato genotypes and classify them by the levels of resistance. The commercial cultivar Santa Clara was set as the susceptible standard and line PI 134417 as the resistant standard to evaluate the lines PI 134418, PI 126931, LA 462 and LA 716. Feeding non-preference tests were performed under non-choice and free-choice conditions to evaluate the genotype attractiveness to larvae at predetermined times after their release, as well as the leaf area consumed. Overall, the genotypes LA 716 and PI 126931 were the least attractive to S. frugiperda, whereas Santa Clara was the most attractive and consumed. For S. eridania, the genotypes PI 126931, LA 462, LA 716 and PI 134418 were the least preferred for feeding, and Santa Clara and PI 134417 were the most attractive and consumed. The genotypes LA 716 and PI 126931 are moderately resistant to S. frugiperda and S. eridania; PI 134418 and LA 462 are moderately resistant to S. eridania; PI 134417 is susceptible to S. frugiperda and S. eridania; and Santa Clara is highly susceptible to both S. frugiperda and S. eridania. Lagartas do g那nero Spodoptera spp. s o altamente pol赤fagas, podendo causar danos econ micos em diversas culturas agr赤colas. Em vista de sua emergente importancia na cultura do tomate, principalmente o destinado 角 ind迆stria, este trabalho teve por objetivo avaliar a n o prefer那ncia, para alimenta  o, de lagartas de Spodoptera frugiperda (J. E. Smith, 1797) e Spodoptera eridania (Cramer, 1782) por gen車tipos de tomateiro, e classific芍-los quanto aos graus de resist那ncia. Como padr o suscept赤vel, utilizou-se o cultivar comercial Santa Clara e, como resistente, a linhagem PI 134417, sendo avaliadas, ainda, as linhagens PI 134418, PI 126931, LA 462 e LA 716. Realizaram-se testes de n o prefer那ncia, para alimenta  o, com e sem chance de escolha, avaliando-se a atratividade dos gen車tipos de tomateiro para as lagartas, em tempos pr谷-estabelecidos ap車s sua libera  o, al谷m da massa foliar consumida. Em geral, os gen車tipos LA 716 e PI 126931 foram os menos atrativos para a S. frugiperda, enquanto Santa Clara foi o mais atrativo e consumido. Quanto a S. eridania, os gen車tipos PI 126931, LA 462, LA 716 e PI 134418 foram os menos preferidos, para a alimenta  o, pelas l
%K resist那ncia de plantas a insetos
%K lagarta-militar
%K lagarta-das-vagens
%K Lycopersicon spp
%K host plant resistance
%K fall armyworm
%K southern armyworm
%K Lycopersicon spp
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2013000100004