Larry from Villanova, Pennsylvania writes
I built a cedar pergola and carpenter bees have shown interest in it. Can I spray the pergola with Suspend SC to protect? If yes, how often should I reapply? The pergola does get direct sun in Pennsylvania.
Suspend SC will treat for Carpenter bees. Since it is in direct sunlight, we recommend Suspend Polyzone which has a stronbger polymer to stand up to UV rays and create a lower release of active ingredient. You would want to reapply once every 2-3 months.
Answer last updated on: 05/27/2014