Variation in Yield By Node and Position with Injury from Heliothine Pests in Selected Cultivars in New Mexico

As part of a regional collaborative project with Cotton Incorporated and Texas A & M University, seven varieties of Bt +/- cotton were planted in a field trial in Artesia, NM. Damage to squares and bolls was compared weekly. Yields were picked from two 50ft center rows. Plants were also removed for yield partitioning comparisons by position and node.  A separate trial was conducted to examine predation, Helicocoverpa zea survival and time of hatch in okra-leaf vs. conventional cotton.