WSPMA Fall Seminar Highlight
Speaker: Dini Miller, Ph.D
Dini Miller will be one of the three speakers for the Fall Seminar this year. She will be coveringGerman Cockroaches as well as touching on Bed bugs. Below you will find information about her talk on bed bugs. If you haven't reserved your seat for the
, do it now!
Not All Infestations are the Same: Using Vacuums, Heat Chambers, Monitors and other Non-Chemical Methods to Maximize Your Bed Bug Control Efforts
Bed bugs: Challenges in the field
Not all bed bug infestations are the same. Should we be treating a home with 6 bed bugs the same way we treat a home with 6000 bed bugs? While a chemical application may be enough to eliminate a small infestation, a large infestation may require heat treatment. Whole home heat has been widely used for treating large infestations, but it is hardly worth the time and expense when there less than 100 individuals. Yet, regardless of the population size, we have seen books, shoes, picture frames, end tables, lamps and computers all infested with bed bugs. What can we do with these items? Please don't suggest that the resident has to throw these items in the garbage. We can do better than that.
Residents have great difficulty following the bed bug treatment preparation instructions. Typically, these instructions present the residents with days of work-cleaning and putting all of their belongs into containers to get them out of the way of the technician. Yet, even if followed to the letter, there is no guarantee that the home will be bed bug free after treatment. It is important to note that pre-treatment instructions are not written so that bed bugs are better controlled, they are written with the intent of getting the technician in and out of the infested location faster (less treatment time if the resident places their infested items in sealed bags). That being said, the placing of bed bug infested items into bags, and the disturbance of bed bug aggregations (due to cleaning and storage) prior to treatment may actually hinder eradication efforts rather than help. The fact that many infested items (in the bags) cannot be treated with insecticides theoretically requires that these items remain in sealed bags forever... or risk bed bugs reestablishing populations once the bags are opened.
Another issue to consider is that medium to large bed bug infestations typically create a significant amount of debris. The bed bug molted skins can be all over the home making it difficult to determine if there are survivors after a bed bug treatment. Our laboratory recently documented that small instar bed bugs like to hide in the shed skins of their older siblings. We have since confirmed this observation in several locations in the field. We know that many field populations have reduced cuticular penetration type resistance. So what this means is that tiny bed bugs hiding in the "thick skins" of their older siblings are completely protected from insecticide exposure.
Bearing in mind that not all infestations are the same; we cannot continue putting bed bugs into bags; and bed bug debris provides a protective cover for small instars ....what do we do?
This presentation will discuss the how we use different treatment protocols for different bed bug infestation situations. We will discuss the attributes of different bed bug contracts, vacuums, heat chambers, whole home heat systems and monitors that can be used to supplement treatment efforts, while asking the resident to do less preparation.
We look forward to seeing you at the
Fall Seminar - October 19 (Spokane) or October 21 (Auburn)