Impact of Banks Grass Mite1 Damage to Yield and Quality of Maize Silage

摘要: Abstract. Banks grass mite, Oligonychus pratensis (Banks), is a major pest of maize, Zea mays L., causing significant economic loss yield maize grown for grain. However, damage and to silage are not well documented. This study evaluated associated with infestation by different numbers mites (noninfested check, low, medium, large) subsequent effects on quality harvested silage. Mite densities in each the designated infested treatments steadily increased weekly, but at level, until after Aug 10. Weekly changes rating level corresponded increases mite that occurred treatments. The population decline this date was increasing predator densities. No differences yields were detected between noninfested (80.21 Mt/ha), low (82.38 MT/ha), medium (78.87 MT/ha) infestations, the...