The Asiatic citrus psyllid (Diaphorina citri Kuwayama [Hemiptera: Sternorrhyncha: Psyllidae] is a vector of huanglongbing (citrus greening), a devastating disease of citrus caused by phloem-limited bacteria. Growing guava (Psidium guajava) as an intercrop appears to be a successful means of reducing psyllid numbers within citrus orchards; however, the mechanism by which such a reduction is achi...

We examined the repellency of a commercially available animal repellent to determine the efficacy of its application to objects that are attractive to coyotes (Canis latrans). Specifically, we aimed to both prevent chewing behavior by coyotes on a nylon-like strapping material, which is used to construct barrier-arresting systems on military airstrips, and determine the ability of the solution ...

The compressive strength of concrete may be affected by seepage salt water. Dead Sea water is a hazardous environment for due to high concentration salts. aim this study was investigate the effect on containing hydrophobic water-repellent admixture, and determine optimum dosage admixture used reduce effect. Three types cement were (Ordinary Portland Cement, Pozzolanic Sulphate-Resisting Cement)...

Repellent use is one of the most effective personal protection measures in reducing bites of blood-sucking insects/ arthropods and preventing vectorborne disease transmission. Tmditionally. discovery of new repellents involves initial screening of thousands of candidates using various methods with very few successes. However. despite the obvious desirability of finding an effective mosquito rep...

Repellents of Bacillus subtilis include many membrane-active compounds, such as uncouplers of oxidative phosphorylation, local anesthetics, chlorpromazine (a central nervous system depressant), and tetraphenylboron (a lipophilic anion). Normally, bacteria swim smoothly, and occasionally tumble, but addition of repellent causes all bacteria to tumble, then later resume original frequency of swim...

Super water-repellent surfaces occur naturally on plants and aquatic insects and are created in the laboratory by combining micro or nano-scale surface topographic features with hydrophobic surface chemistry. When such types of water-repellent surfaces are submerged they can retain a film of air (a plastron). In this work, we report measurements of the terminal velocity of solid acrylic spheres...

Picaridin is perfect balance of efficacy, safety and user-friendliness. It repels a wide variety of pests including mosquitoes, ticks, biting flies, sand flies, gnats, chiggers, and midges. It is the longest lasting repellent with up to 14 hours of protection against mosquitoes and ticks and up to 8 hours against a variety of flies, chiggers and gnats. It’s non-greasy, has a pleasant low odor a...

The effects of three slow acting non-repellent insecticides on the behavior of the eastern subterranean termite, Reticulitermes flavipes (Koller) was investigated in a continuous exposure study. Abnormal behaviors of fipronil and indoxicarb treated termites were similar; incipient intoxication (disorientation), followed by ataxia (uncoordinated movements), and morbundity (lack of ability to wal...

of arresting rate ± S.E.) had settled on the control filter paper. These results and observations made clear that the MeOH extract of C. japonica strongly disturbed the A. vuigare isopods and made them move to the filter paper containing only water, indicating that the extract contained a repellent(s) against the isopod species. The crude MeOH extract suspended in water was successively extract...