Preference for Oviposition of Sitophilus Zeamais Motschulsky (Coleoptera: Curculionidae) In 30 Corn Genotypes

Abstract

Spanish

In this work was determinated the preference of Sitophilus zeamais for ovipositing in 30 corn genotypes, and it also was studied the relationship between oviposition per seed with the total protein content, triptophan and lysine. The most prefered genotypes for oviposition were: Ejura (1) 7843Q, PII Dia 1'90, Cacahuacintle (susceptible control), and the P3 Dia 1'90. Also they had the highest rate of damaged grains. The less prefered and with lower rate of oviposited grains were the genotypes B25C22- MHS-1-2-b, Across 8765, P7 Dia 1'90 and the Palo mero (resistant control). The protein content, lysine, and triptophan in the sample and in protein, had not influence in the oviposition preference of the insect, the adults atraction or the oviposition rate per kernel.

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