@article{magalhaes_kretschmar_donohue_roe_2013, title={Pyrosequencing of the adult tarnished plant bug, Lygus lineolaris, and characterization of messages important in metabolism and development}, volume={146}, ISSN={["1570-7458"]}, DOI={10.1111/eea.12035}, abstractNote={Abstract}, number={3}, journal={ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA}, author={Magalhaes, Leonardo C. and Kretschmar, Jaap B. and Donohue, Kevin V. and Roe, R. Michael}, year={2013}, month={Mar}, pages={364–378} }
 @article{magalhaes_van kretschmar_barlow_roe_walgenbach_2012, title={Development of a rapid resistance monitoring bioassay for codling moth larvae}, volume={68}, ISSN={["1526-4998"]}, DOI={10.1002/ps.3246}, abstractNote={Abstract}, number={6}, journal={PEST MANAGEMENT SCIENCE}, author={Magalhaes, Leonardo C. and Van Kretschmar, Jaap B. and Barlow, Vonny M. and Roe, R. Michael and Walgenbach, James F.}, year={2012}, month={Jun}, pages={883–888} }
 @article{magalhaes_walgenbach_2011, title={Life Stage Toxicity and Residual Activity of Insecticides to Codling Moth and Oriental Fruit Moth (Lepidoptera: Tortricidae)}, volume={104}, ISSN={["1938-291X"]}, DOI={10.1603/ec11070}, abstractNote={ABSTRACT The codling moth, Cydia pomonella (L.), and oriental fruit moth, Grapholita molesta (Busck), are two key pests of apple (Malus domestica Borkh.) in North Carolina. Growers extensively relied on organophosphate insecticides, primarily azinphosmethyl, for >40 yr to manage these pests. Because of organophosphate resistance development and regulatory actions, growers are transitioning to management programs that use new, reduced-risk, and OP-replacement insecticides. This study evaluated the toxicity of a diversity of replacement insecticides to eggs, larvae, and adults, as well as an assessment of their residual activity, to codling moth and oriental fruit moth. Laboratory-susceptible strains of both species were used for all bioassays. Fresh field-harvested apples were used as a media for assessing the ovicidal activity of insecticides. For larval studies, insecticides were topically applied to the surface of lima bean-based diet, onto which neonates were placed. Toxicity was based on two measures of mortality; 5-d mortality and development to adult stage. Ovicidal bioassays showed that oriental fruit moth eggs were generally more tolerant than codling moth eggs to insecticides, with novaluron, acetamiprid, and azinphoshmethyl having the highest levels of toxicity to eggs of both species. In contrast, codling moth larvae generally were more tolerant than oriental fruit moth to most insecticides. Methoxyfenozide and pyriproxyfen were the only insecticides with lower LC50 values against codling moth than oriental fruit moth neonates. Moreover, a number of insecticides, particularly the IGRs methoxyfenozide and novaluron, the anthranilic diamide chlorantriliprole, and the spinosyn spinetoram, provided equal or longer residual activity against codling moth compared with azinphosmethyl in field studies. Results are discussed in relation to their use in devising field use patterns of insecticides and for insecticide resistance monitoring programs.}, number={6}, journal={JOURNAL OF ECONOMIC ENTOMOLOGY}, author={Magalhaes, Leonardo C. and Walgenbach, James F.}, year={2011}, month={Dec}, pages={1950–1959} }
 @article{esteves magalhaes_cao_lucia_2009, title={Cellulose Nanocrystals/Cellulose Core-in-Shell Nanocomposite Assemblies}, volume={25}, ISSN={["0743-7463"]}, DOI={10.1021/la901928j}, abstractNote={We report herein for the first time how a co-electrospinning technique can be used to overcome the issue of orienting cellulose nanocrystals within a neat cellulose matrix. A home-built co-electrospinning apparatus was fabricated that was comprised of a high-voltage power supply, two concentric capillary needles, and one screw-type pump syringe. Eucalyptus-derived cellulose was dissolved in N-methylmorpholine oxide (NMMO) at 120 degrees C and diluted with dimethyl sulfoxide (DMSO) which was used in the external concentric capillary needle as the shell solution. A cellulose nanocrystal suspension obtained by the sulfuric acid hydrolysis of bleached sisal and cotton fibers was used as the core liquid in the internal concentric capillary needle. Three flow rate ratios between the shell and core, four flow rates for the shell dope solution, and four high voltages were tested. The resultant co-electrospun composite fibers were collected onto a grounded metal screen immersed in cold water. Micrometer and submicrometer cellulose fiber assemblies were obtained which were reinforced with cellulose nanocrystals and characterized by FESEM, FTIR, TGA, and XRD. Surprisingly, it was determined that the physical properties for the cellulose controls are superior to the composites; in addition, the crystallinity of the controls was slightly greater.}, number={22}, journal={LANGMUIR}, author={Esteves Magalhaes, Washington Luiz and Cao, Xiaodong and Lucia, Lucian A.}, year={2009}, month={Nov}, pages={13250–13257} }
 @article{guedes_magalhaes_cosme_2009, title={Stimulatory Sublethal Response of a Generalist Predator to Permethrin: Hormesis, Hormoligosis, or Homeostatic Regulation?}, volume={102}, ISSN={["1938-291X"]}, DOI={10.1603/029.102.0124}, abstractNote={ABSTRACT 
 The assessment of pesticide effects in arthropods historically have relied heavily on acute lethal effects. Although the sublethal responses to such compounds are sometimes neglected, stimulatory effects associated with low doses of compounds toxic at higher doses, such as pesticides, have been widely reported in recent years and recognized as a general toxicological phenomenon. Evidence of such stimulatory response has also been reported among mites and a few insect pest-species exposed to pesticides and recognized as a one of the potential causes underlying pest resurgence and secondary pest outbreaks. However, fitness parameters and its implications were seldom considered in these studies and natural enemies are not usually target of attention. Here, we reported the stimulatory effect of sublethal doses (ranging from 0.02 to 172.00 ppb in addition to the control) of the pyrethroid permethrin topically applied to third instar nymphs of the spined soldier bug, Podisus distinctus (Stål) (Heteroptera: Pentatomidae). The parameters estimated from the fertility tables of insects exposed to the increasing doses of insecticide indicated a slight increase in the mean survival time for doses ≥0.20 ppb and a peak in the net reproductive rate at 1.72 ppb. This trend is coincident and correlated with the intrinsic rate of population growth (n = 18, r = 0.78, P = 0.0001), which also shows apeak at 1.72 ppb, leading to higher reproductive values of insects exposed to this dose. The phenomenon is consistent with insecticide-induced hormesis, for which the potential implications are discussed.}, number={1}, journal={JOURNAL OF ECONOMIC ENTOMOLOGY}, author={Guedes, R. N. C. and Magalhaes, L. C. and Cosme, L. V.}, year={2009}, month={Feb}, pages={170–176} }