No description available.

A statistically sound and quantifiable bioassay procedure was developed for determining the response of adult Delia radicum to oviposition stimulants. The method was based on the use of surrogate leaves coated with test compounds. All of the test compounds were of purity 99% or greater. Twelve of the tested compounds were synthesised the remaining twenty four were either donated or available commercially. Attempts to follow literature methods to synthesise glucosinolates were unsatisfactory and an investigation of the procedures led to a number of synthetic modifications. Despite various attempts, the failure to sulphate a thiohydroximate to produce a glucosinolate was not resolved. Attempts to correlate oviposition stimulus with chemical structure produced a very significant finding. The results showed that a wide variety of chemically dissimilar compounds were effective stimulants providing they contained an S=O group. Thus sulphoxides, sulphones, sulphinic, sulphonic acids and their derivatives were all effective. Thiols and thioethers were non-stimulant, as were naturally occurring glucosinolates which had been chemically modified by the removal of the oxime sulphate group. The relative effectiveness of the oviposition stimulants was examined by determining the number of eggs laid on surrogate leaves relative to a prop-2-enylglucosinolate (sinigrin) standard over a range or concentrations. Statistical modelling of the data collected produced a maximum relative number of eggs laid (YMAX) at an optimum concentration (C) for each compound. It was not found possible to produce a single parameter combining YMAX and C, neither did any other structure-activity feature emerge from the study.

Master of Science / Department of Entomology / Robert "Jeff" J. Whitworth / The brown recluse spider (BRS), Loxosceles reclusa (Gertsch & Mulaik), receives unfavorable publicity because of its common association with humans and the medical importance of its toxic bite. BRS range includes much of the south and central United States where they can be found in almost all structures, from homes and sheds to woodpiles and discarded materials. Typical management techniques for the control of BRS involve the use of residual contact insecticides and/or the use of glue traps. Contact insecticides rely on BRS remaining in contact with a treated surface for a length of time to achieve control and may not cause significant BRS mortality. However, if the insecticide kills another household pest that the BRS later scavenges upon, and thus results in the death or decreased reproduction of the BRS, the homeowner rids themselves of pests and potentially reduces BRS populations. This research was initiated with the objective of evaluating how feeding on live vs. dead vs. insecticide-killed prey impacts selected biological aspects of BRS as indicated by, mortality, and weight change over an eight-week period. Follow-on experiments evaluated the effect on fecundity of the adult BRS surviving the eight week trials. In four trials of juvenile and five trials of adult BRS, house crickets, Acheta domesticus (Linnaeus), used as prey, were exposed to one of four treatments: 1) Spinosad insecticide treated surface, 2) synthetic pyrethroid insecticide treated surface, 3) freeze-killed and 4) an untreated (live), and fed to spiders once weekly for eight weeks. BRS exposed to synthetic pyrethroid-killed crickets had significantly greater mortality than all other treatments.

4 pp. / This publication will explain what fungus gnats are and how to manage them.

32 pp. / Bugs @ Home series; Revised / How to keep bugs out and reduce your utility costs!

No description available.

No description available.

No description available.

12 pp. / This document is intended to help you develop an implementable IPM Plan for your school or school district. We have provided a modifiable template which can be downloaded at: http://cals.arizona.edu/apmc/westernschoolIPM.html#pubs.

4 pp. / Bed bugs can cause anxiety, bite reactions, and financial hardship. The University of Arizona Community IPM Program and partnering research institutions are working to battle the recent bed bug resurgence. Researchers hope to determine the real social cost of bed bugs, as well as the significant causes of infestations. Integrated Pest Management (IPM) approach is the most likely strategy to result in successful elimination of bed bugs.