Interesting article by Keith DeLaplane in the April issue of ABJ regarding the use of small cell foundation and its effects on varroa mites. Here is a scientific study by an extremely knowledgeable leader in our industry stating "small cell foundation was shown to be ineffective in reducing mite populations"... He further states that he is unaware of any publicly accessible peer reviewed papers that directly support small cell efforts to reduce mite populations. Several years ago I purchased several hundred plastic small frames of foundations mainly because of the cost factor. In my case it was not a wise investment. The PF-100 and PF120's are problematic in my operation because of the ladder comb issue. Anyways, I am not trying to start WWIII regarding this debate, but it was an interesting (scientific) analysis. I have since sold almost all of my small cell plastic combs.