Although casebearer season is still several months away, it is time to order pheromone traps or at least contact your supplier to let them know you are interested. Shalem Colony Tr. These companies work through distributors and should be able to provide a list of any distributors not listed above. In using the pecan nut casebearer pheromone the critical point is to have the traps out early, before casebearer activity has started so the onset of activity can be detected. For south Texas traps should be out around April 1, central Texas around April 15 and the northern part of the state around May 1.
Pheromone traps are only indicators of activity and no thresholds are associated with trap catches.
Research has shown that oviposition or egg lay should occur 7 to 12 days after initial catch and nut entry 12 to 16 days after initial catch. Because pheromone traps are only indicators of activity, it is felt that orchards of 50 acres or less should have 3 to 5 traps while orchards over 50 acres should have at least 5 traps. Pheromone lures which are not being used need to be stored in a freezer. During the spring there are several pecan field days and workshops across Texas.