Provided by Diam Pest Control in Des Moines, IA
Bald Faced Hornet
During the summer months, Boxelder Bugs are perfectly happy outdoors busily eating sap from the seeds of boxelder, maple and ash trees. They are not much of a problem at this point as they have no desire to be indoors. However, once fall arrives they begin to prepare for winter. You will notice them collecting on the sunny side of structures. This is usually the South and West sides. They are drawn to these surfaces because of the heat. Once cooler weather arrives, they penetrate any exterior cracks they can find to hibernate inside the walls. Quite often they go undetected all winter. However, on warm winter days, and especially when spring arrives, they start to come out of hibernation. They begin to exit the structure as they are not able to survive indoors. Unfortunately, some of them go the wrong direction and end up inside of the structure.
This is when they become a problem. Timing is critical in getting rid of boxelder bugs. In the winter and early spring, when they are hibernating inside your walls, they are not always accessible to us. If we can’t get to them, we can’t eliminate them. Therefore, treating for boxelder bugs in the winter or spring does not always yield the best results. However, if we cannot gain access to them in the spring, there is a solution. In the following fall season, when they gather on the outside walls, we can power spray the exterior of the structure. This will eliminate most of them before they get in. This is very effective if it is done at the right time. Around September or October, pay close attention to the outside for the structure. When they show up, please give us a call and make an appointment. This seems to happen at a different time each year so, you will have to watch for them to show up. If you have an existing service agreement with us, in most cases, there will be no additional charge for your service. You have a two to three week window of opportunity to have this done. As they move into the walls, the results will decrease.