Abstract: The invention may be summarized as follows. The present invention provides insecticides comprised of naturally-occurring compounds, such as, for example, PA1b-related peptides and terpenoid saponins. The present invention also provides for identification and characterization of a synergistic insecticidal effect between peptides and saponins extracted from plants. Furthermore, simplified extraction procedures are provided that avoid the use of a chloroform defatting step or a column chromatography step.

Abstract: A pair of paint rollers are respectively rotatably mounted to a pair of parallel, spaced apart axle members that form a part of a rigid frame. A rigid clip rod at the center of the frame is releasably engaged by a clip member that is pivotally secured to a handle-receiving socket member at the leading end of an elongate handle which is held by a painter when paint is applied to a preselected surface. The pivotal attachment allows pivotal movement between the clip member and hence the frame and the longitudinal axis of the elongate handle in a first plane. The clip rod is cylindrical and is captured by the clip member when the clip member is in a position of repose, but the cylindrical surface allows the frame member to pivot with respect to the clip member and hence the elongate handle in a second plane that is normal to the first plane. A lock member is slideably mounted on the leading end of the socket member.

Abstract: A portable vacuum and air filtration unit, comprising: a plurality of separately transportable modules and a means for locking the modules together during use, an air inlet located in one of the modules, a debris screen and a means for receiving debris stopped by the screen located in one of the modules, an electrostatic filter located in one of the modules, a bag filter assembly located in one of the modules, a HEPA filter assembly located in one of the modules, and a means for drawing a substantial volume of air through the inlet, screen, electrostatic filter, bag filter assembly and HEPA filter assembly.