2018 Western Bean Cutworm Trapping Instructions and Supply List
Pheromone traps can be used to monitor for adult WBC moth presence and detect when peak moth flight occurs. Traps should be used in all regions of Ontario, not just the known hotspot areas of Bothwell and Tillsonburg as moths can be active anywhere corn and dry beans are grown. Traps cannot be used directly to determine when a spray is required but rather indirectly by identifying fields that are at risk and when scouting is required. Moths can be captured as early as June and peak flight typically occurs in late July, though this can be one week earlier or later in any given county depending on weather and other factors. Shortly following peak flight is peak egg laying and when scouting is critical.
For each WBC trap, you will need:
1. All Green Bucket or Universal Trap are the preferred trap for WBC, as milk jug traps are more labour intensive, often drying out of their antifreeze in hot weather, rendering the trap useless. Though not as cost effective as milk jugs, bucket traps can be used for multiple years.
Two suppliers we have dealt with:
Make sure to order it in all Green – Item #301Y602
Make sure to order it in all Green – Item #IPS-G004
2. Pheromone Lures
5 lures are required per trap per season. Preferred WBC Pheromone Lure Brands include “Scentry” or “Trece”. Change lures every 3 weeks, starting from June 1st until Sept 14th = 15 weeks/3 = 5 lures/trap/year. Lures must be stored in the freezer prior to use and can be used next year if you have some leftover from the previous year. It is cost effective to order a case of 12 or 25 lures and have them for next year too.
The lures are not listed on their website but they do carry Scentry brand lures for WBC. Contact Solida directly to order the correct lures
Scentry brand WBC Lures Item # SC-L206 - also available in cases of 12 lures
Trece brand WBC Lures Item # TR-3406 – also available in a cases of 25 lures
3. Fumigant or Vapour Strips
These are plastic strips impregnated with an insecticide to kill the moths so that they do not fly away when you open the trap to count them.1 strip will last for at least 2 months.You can order them at distributions Solida http://www.solida.ca/ so that there are no issues with getting it across the border. If in a pinch, we have also gone to a local hardware store and purchased the Ortho Home Defense Strips for flies https://www.ortho.com/en-ca/products/home-perimeter-indoor/ortho-home-defense-max-no-pest-insecticide-strip. One Ortho Home Defense Strip can be cut into 1 inch wide strips and be enough for 5 traps. Always use gloves when handling these strips.