The movement of some soil termiticides among subterranean termites from exposed to naive individuals has raised some interesting questions. Thus far, the only compounds specifically examined for transfer have been termiticides with delayed action, non-repellent active ingredients. We hypothesized that movement of pesticide is possible even for traditional fast-acting repellent termiticides, whe...

Porous carbon materials with high specific surface areas and superhydrophobicity have attracted much research interest due to their potential application in the areas of water filtration, water/oil separation, and oil-spill cleanup. Most reported superhydrophobic porous carbon materials are fabricated by complex processes involving the use of catalysts and high temperatures but with low through...

The liquid repellency and surface topography characteristics of coatings comprising a sprayed-on mixture of fluoroalkyl-functional precipitated silica and a fluoropolymer binder were examined using contact and sliding angle analysis, electron microscopy, and image analysis for determination of fractal dimensionality. The coatings proved to be an especially useful class of liquid repellent mater...

The coating of aluminum nitride (AlN) powder has a great importance industrially and environmentally. AlN can be rapidly hydrolyzed to hydroxide ammonia in the atmosphere or water media. To prevent hydrolysis AlN, inorganic organic based coatings are used frequently. First time, this study, phosphate esters as organophosphate were for inhibition reaction its suspension. Phenyl showed best again...

1 2 An avoidance test using the soil springtail Folsomia candida was used to assess 3 changes in contamination levels at low doses of PAHs following incubation with 4 indigenous microflora. A soil from a former coke site was diluted to 1% in an unpolluted 5 soil from the same site, which was used as a control, then both substrates were 6 remoistened to 80% field capacity. The diluted soil was p...

The primary defence against mosquitoes and other disease vectors is often the application of a repellent. Despite their common use, the mechanism(s) underlying the activity of repellents is not fully understood, with even the mode of action of DEET having been reported to be via different mechanisms; e.g. interference with olfactory receptor neurones or actively detected by olfactory receptor n...

Evolution persistently undermines vector control programs through insecticide resistance. Here we propose a novel strategy which instead exploits evolution to generate and sustain new control tools. Effective spatial repellents are needed to keep vectors out of houses. Our approach generates such new repellents by combining a high-toxicity insecticide with a candidate repellent initially effect...

Plant parasitic nematodes have developed the capacity to sense and respond to chemical signals of host origin and the ability to orientate towards plant roots enhances the nematode's chance of survival. Root exudates contain a range of compounds which mediate belowground interactions with pathogenic and beneficial soil organisms. Chemical components of root exudates may deter one organism while...