Sitotroga cerealella-resistant mexican maize races (Zea mays L.), new sources of resistance for commercial maize breeding

Abstract Sitotroga cerealella (Oliv.) (Lepidoptera: Gelechiidae) is one of the most important post-harvest pests maize Zea mays L. Some Mexican races ( Z. ) could be a novel source resistance against S. to improve commercial varieties, lines and hybrids. We studied races, recollected at Chihuahua State . focused on antibiosis tolerance Cristalino-079 race shows low level consumption in grams percentage, increased larvae mortality before entering seed. In addition, reduced first adult’s generation show largest biological cycle. Due small number emerged adults, there was very little grain weight loss resistant race. The compound that causes high pericarp races. longest development time endosperm embryo. better infestation almost all traits this can used as for breeding.