@article{bergh_zhang_meyer_kim_2011, title={Response of Grape Root Borer (Lepidoptera: Sesiidae) Neonates to Root Extracts From Vitaceae Species and Rootstocks}, volume={40}, ISSN={["0046-225X"]}, DOI={10.1603/en10281}, abstractNote={ABSTRACT Observations at regular intervals of the location of newly hatched grape root borer, Vitacea polistiformis (Harris), larvae moving freely within circular petri dish bioassays were used to measure and compare their response to dry filter paper discs treated with ethanol- or hexane-based extracts of roots from known and potential Vitaceae hosts and a nonhost. Larvae responded most strongly to discs treated with ethanol extracts, suggesting the presence of behaviorally active, polar compounds associated with roots. In single extract bioassays comparing extract versus solvent treated discs, larvae responded positively to ethanol extracts from all Vitis species and rootstocks and Virginia creeper [Parthenocissus quinquefolia (L.) Planch.], but not to apple (Malus domestica Borkh). Paired extract bioassays, in which an extract from the commercially important 3309 rootstock was used as the standard and presented simultaneously with extracts from other root sources, revealed examples of equal, significantly weaker and significantly stronger responses to the 3309 extract. Extracts of the 420 A and V. riparia ‘Gloire’ rootstocks appeared to possess qualities that elicited a consistently greater response than to 3309 extract in these pair-wise comparisons. The active compounds were eluted in ethanol during a 30-min extraction; larvae responded equally to 30- and 60-min 3309 root extracts in paired extract bioassays. Larvae responded equally to extracts of 3309 roots from three spatially separate vineyards in northern Virginia. These results are discussed in relation to the subterranean, plant-insect interactions of grape root borer neonates with the numerous native and non-native Vitis species that may serve as hosts in the eastern United States.}, number={4}, journal={ENVIRONMENTAL ENTOMOLOGY}, author={Bergh, J. C. and Zhang, A. and Meyer, J. R. and Kim, D.}, year={2011}, month={Aug}, pages={880–888} }
 @article{pearson_dillery_meyer_2004, title={Modeling intra-sexual competition in a sex pheromone system: how much can female movement affect female mating success?}, volume={231}, ISSN={["0022-5193"]}, DOI={10.1016/j.jtbi.2004.07.010}, abstractNote={Mating disruption theory predicts that high concentrations of female pheromone, and/or large numbers of release sites, should confuse males orienting to “calling” females, reduce the number of successful matings, and decrease the reproductive potential of the population. In this scenario, females are regarded as stationary point sources of pheromone. Past behavioral observations, however, have shown virgin female grape root borers, Vitacea polistiformis Harris, significantly alter their behavior in mating disruption treatments. Treated females call at different heights, move less before call initiation, and move more after call initiation than control females. Pheromone gland dragging and wing fanning also increase significantly during pheromone treatments. These behavioral differences are significant only if they alter the mating success of females. Because long-term field studies are impractical, we used known behavior of male and female GRB to build a Fortran language time step model, adding the effects of female movement to past models of male pheromone plume following. Females were distributed randomly, and then assigned a conditional movement strategy. If females were within the competitive portion of another female's plume, the downwind female moved. Except in the lowest population density tested, females moving upwind and crosswind when in a competing female's pheromone plume mated significantly more often than females remaining stationary. In all population simulations, mating success was significantly reduced when females moved downwind. These field and simulation studies provide strong evidence for female movement as a previously overlooked potential mechanism for resistance to mating disruption treatments, as well as a shaping behavior in the evolution of pheromone communication systems.}, number={4}, journal={JOURNAL OF THEORETICAL BIOLOGY}, author={Pearson, GA and Dillery, S and Meyer, JR}, year={2004}, month={Dec}, pages={549–555} }
 @article{williams_fickle_grewal_meyer_2002, title={Assessing the potential of entomopathogenic nematodes to control the grape root borer Vitacea polistiformis (Lepidoptera : Sesiidae) through laboratory and greenhouse bioassays}, volume={12}, ISSN={["1360-0478"]}, DOI={10.1080/09583150120110644}, abstractNote={Seventeen entomopathogenic nematode species and strains were evaluated for virulence to the grape root borer, Vitacea polistiformis (Harris) in laboratory and greenhouse bioassays. Heterohabditis bacteriophora strain GPS11 and H. zealandica strain X1 produced a larval mortality rate of over 85% of larvae embedded in the root cambium in laboratory bioassays. The nematode species H. marelata and H. bacteriophora strain Oswego produced mortality rates of over 75%. Of the Steinernema species tested, S. carpocapsae strain 'All' performed the best with a mortality rate of 69%. All other nematode species and strains tested, with the exception of S. bicornutum , produced some degree of larval mortality. In the greenhouse bioassays, 93% control was achieved with H. zealandica strain X1 applied at 4 2 109 infective juveniles (IJs) acre1 -1 (9.88 2 10 9 IJs ha -1 ). H. bacteriophora strain GPS11 successfully reproduced in grape root borer larvae. The numbers of IJs produced within infected larvae were related to larval size. The survival rate of neonate larvae on grape root sections was 61%, which thus provides a means to rear the neonate larvae for bioassays.}, number={1}, journal={BIOCONTROL SCIENCE AND TECHNOLOGY}, author={Williams, RN and Fickle, DS and Grewal, PS and Meyer, JR}, year={2002}, month={Feb}, pages={35–42} }
 @article{meyer_nalepa_devorshak_2001, title={A new species of anicetus (Hymenoptera : Encyrtidae) parasitizing terrapin scale, Mesolecanium nigrofasciatum (Hemiptera : Coccidae)}, volume={84}, ISSN={["0015-4040"]}, DOI={10.2307/3496402}, abstractNote={Anicetus carolinensis Meyer (Hymenoptera: Encyrtidae) is proposed as the name of a new species found parasitizing terrapin scale, Mesolecanium nigrofasciatum (Pergande) (Hemiptera: Coccidae), in North Carolina. Both sexes are described and illustrated together with notes on the life history, host range, and reproductive behavior of the species.}, number={4}, journal={FLORIDA ENTOMOLOGIST}, author={Meyer, JR and Nalepa, CA and Devorshak, C}, year={2001}, month={Dec}, pages={686–690} }
 @article{nyczepir_bertrand_parker_meyer_zehr_1998, title={Interplanting Wheat Is Not an Effective Postplant Management Tactic for Criconemella xenoplaxin Peach Production}, volume={82}, ISSN={0191-2917}, url={http://dx.doi.org/10.1094/pdis.1998.82.5.573}, DOI={10.1094/PDIS.1998.82.5.573}, abstractNote={ In two orchard experiments, interplanting wheat (Triticum aestivum cv. Stacy) around either newly planted or 4-year-old well-established peach trees did not suppress (P ≤ 0.05) the population density of the ring nematode, Criconemella xenoplax, after 3 years. Furthermore, inter-planting wheat around newly planted trees reduced tree growth, perhaps the result of competition for water and (or) nutrients. Wheat root exudate was not as attractive to C. xenoplax as peach root exudate, but wheat root exudate did not repel the nematode either. Stacy wheat appeared to be more beneficial as a preplant rather than as a postplant ground cover management tool for suppressing the population density of C. xenoplax. }, number={5}, journal={Plant Disease}, publisher={Scientific Societies}, author={Nyczepir, A. P. and Bertrand, P. F. and Parker, M. L. and Meyer, J. R. and Zehr, E. I.}, year={1998}, month={May}, pages={573–577} }
 @article{meyer_shew_harrison_1994, title={INHIBITION OF GERMINATION AND GROWTH OF THIELAVIOPSIS-BASICOLA BY ALUMINUM}, volume={84}, ISSN={["0031-949X"]}, DOI={10.1094/Phyto-84-598}, abstractNote={Soils suppressive to Thielaviopsis basicola typically have low pH values and high levels of exchangeable aluminum (Al). A series of experiments was conducted to determine the sensitivity of T. basicola to Al. All experiments were conducted in Al-amended carrot agar medium buffered at pH 5.0, except for experiments to determine effects of pH. Isolates of T. basicola from suppressive and conducive soils responded similarly to Al in most tests, but where differences were observed, the isolate from a suppressive soil was less sensitive to Al than was the conducive-soil isolate. Germination of endoconidia and chlamydospores of T. basicola decreased significantly when exposed to 0.55 or 1.1 meq of Al (1 meq=9 ppm of Al) compared with Al-free controls [...]}, number={6}, journal={PHYTOPATHOLOGY}, author={MEYER, JR and SHEW, HD and HARRISON, UJ}, year={1994}, month={Jun}, pages={598–602} }
 @article{meyer_zehr_meagher_salvo_1992, title={SURVIVAL AND GROWTH OF PEACH-TREES AND PEST POPULATIONS IN ORCHARD PLOTS MANAGED WITH EXPERIMENTAL GROUND COVERS}, volume={41}, ISSN={["0167-8809"]}, DOI={10.1016/0167-8809(92)90121-Q}, abstractNote={Field experiments conducted in North and South Carolina (USA) demonstrated that survival and growth of peach trees (Prunus persica (L.) Batsch) as well as the severity of orchard pest populations (arthropods and nematodes) are profoundly affected by the plant species selected for orchard ground cover. Cover crops of brome (Bromus mollis L.), hard fescue (Festuca longifolia Thuill.) and rattail fescue (Vulpia myuros (L.) C. Gmelin) caused high mortality in young peach trees. Bahia-grass (Paspalum notatum var. sauri Parodi) stunted tree growth, and Korean lespedeza (Lespedeza stipulacea Maxim.) supported unacceptably large populations of arthropod pests. Nimblewill (Muhlenbergia schreberi J.F. Gmelin) emerged from these experiments as the most promising candidate for ground cover in commercial peach orchards. This short-statured perennial grass tolerated drought, grew well in partial shade, did not harbor two-spotted spider mites (Tetranychus urticae Koch) or catfacing insects (Hemiptera), inhibited populations of ring nematodes (Criconemella xenoplax (Raski) Luc and Raski), and survived winter weather with little injury. Nimblewill successfully crowded out most weed species, but it did not appear to be highly competitive with peach trees for water and nutrients even when growing directly under the tree canopy.}, number={3-4}, journal={AGRICULTURE ECOSYSTEMS & ENVIRONMENT}, author={MEYER, JR and ZEHR, EI and MEAGHER, RL and SALVO, SK}, year={1992}, month={Sep}, pages={353–363} }
 @article{meyer_shew_1991, title={DEVELOPMENT OF BLACK ROOT-ROT ON BURLEY TOBACCO AS INFLUENCED BY INOCULUM DENSITY OF THIELAVIOPSIS-BASICOLA, HOST-RESISTANCE, AND SOIL CHEMISTRY}, volume={75}, ISSN={["0191-2917"]}, DOI={10.1094/PD-75-0601}, abstractNote={Twelve fields infested with Thielaviopsis basicola, selected from 80 surveyed the previous year, were planted with cultivars of burley tobacco with either low (B21× Ky 10) or moderate (Ky 14) resistance to black root rot. One week after transplantation, soil samples were taken around 20 individual plants in each field to determine the inoculum density of the pathogen and to conduct soil chemical analyses. Severity of black root rot, evaluated on each of the same plants 6 wk later, depended on inoculum density, level of host resistance, and soil chemistry (...)}, number={6}, journal={PLANT DISEASE}, author={MEYER, JR and SHEW, HD}, year={1991}, month={Jun}, pages={601–605} }
 @article{meyer_nalepa_1991, title={EFFECT OF DORMANT OIL TREATMENTS ON WHITE PEACH SCALE (HOMOPTERA, DIASPIDIDAE) AND ITS OVERWINTERING PARASITE COMPLEX}, volume={26}, ISSN={["0749-8004"]}, DOI={10.18474/0749-8004-26.1.27}, abstractNote={The effect of dormant oil treatments on the overwintering parasite complex of white peach scale, Pseudaulacaspis pentagona (Targioni-Tozzetti) was evaluated in a peach orchard in the southern coastal plain of North Carolina in 1988 and 1989. Oil treatments resulted in significant reductions in the emergence of adult hymenopteran parasites in both years. However, mortality was not complete, and a sufficient number of parasites survived to repopulate the orchard in spring.}, number={1}, journal={JOURNAL OF ENTOMOLOGICAL SCIENCE}, author={MEYER, JR and NALEPA, CA}, year={1991}, month={Jan}, pages={27–32} }
 @article{meyer_shew_1991, title={SOILS SUPPRESSIVE TO BLACK ROOT-ROT OF BURLEY TOBACCO, CAUSED BY THIELAVIOPSIS-BASICOLA}, volume={81}, ISSN={["0031-949X"]}, DOI={10.1094/Phyto-81-946}, abstractNote={Soils suppressive to black root rot were detected in fields in which the pathogen was present but in which little or no disease had developed on susceptible cultivars of burley tobacco. Suppressive soils were characterized by low base saturation, low calcium, exchangeable aluminum levels of 1 meq/100 g of soil or higher, and soil pH less than 5. Suppressiveness was confirmed under controlled environmental conditions with fumigated field soils reinfested with Thielaviopsis basicola (...)}, number={9}, journal={PHYTOPATHOLOGY}, author={MEYER, JR and SHEW, HD}, year={1991}, month={Sep}, pages={946–954} }
 @article{meyer_ballington_1990, title={RESISTANCE OF VACCINIUM SPP, TO THE LEAFHOPPER SCAPHYTOPIUS-MAGDALENSIS (HOMOPTERA, CICADELLIDAE)}, volume={83}, ISSN={["1938-2901"]}, DOI={10.1093/aesa/83.3.515}, abstractNote={Natural host plant resistance to the leafhopper Scaphytopius magdalensis (Provancher) was evaluated across 169 genotypes representing 14 blueberry species in four sections of Vaccinium native to North America. Plants were screened by caging neonate nymphs on individual leaves and recording development time (and mortality) through five molts. Highly resistant clones were found in five species: V. ashei Reade, V. crassifolium subsp. crassifolium Andrews, V. elliottii Chapman, V. staminium L., and V. arboreum Marshall. Physical characteristics of the leaves (thickness, glandular density, glaucousness, and toughness) were poorly correlated with resistance in V. ashei, but a possible correlation with leaf toughness was found in V. crassifolium. Lineage of the resistant trait is illustrated for V. ashei cultivars.}, number={3}, journal={ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA}, author={MEYER, JR and BALLINGTON, JR}, year={1990}, month={May}, pages={515–520} }
 @article{meyer_colvin_1985, title={DIEL PERIODICITY AND TRAP BIAS IN STICKY TRAP SAMPLING OF SHARPNOSED LEAFHOPPER (SCAPHYTOPIUS-MAGDALENSIS) (PROVANCHER), HOMOPTERA, CICADELLIDAE POPULATIONS}, volume={20}, ISSN={["0749-8004"]}, DOI={10.18474/0749-8004-20.2.237}, abstractNote={Sharpnosed leafhoppers, Scaphytopius magdalensis (Provancher), exhibit a diel periodicity characterized by morning and evening peaks of flight activity. Adults are most commonly found on blueberry plants at night; they apparently seek shelter during the day and return to their host plants around dusk. Flight activity during midday and early afternoon is usually correlated with high temperature and low humidity. Most local flight activity occurs from 0 to 50 cm above the soil surface and is significantly affected by bush height.}, number={2}, journal={JOURNAL OF ENTOMOLOGICAL SCIENCE}, author={MEYER, JR and COLVIN, SA}, year={1985}, pages={237–243} }
 @article{meyer_1984, title={Life history of the sharpnosed leafhopper [Scaphytopius magdalensis (Provancher)] and four related species in southeastern North Carolina}, volume={19}, number={1}, journal={Journal of the Georgia Entomological Society}, author={Meyer, J. R.}, year={1984}, pages={72} }
 @article{meyer_1982, title={PHYSICAL AND BIOLOGICAL PREREQUISITES FOR FLIGHT ACTIVITY IN THE ALFALFA WEEVIL, HYPERA-POSTICA (COLEOPTERA, CURCULIONIDAE)}, volume={75}, ISSN={["0013-8746"]}, DOI={10.1093/aesa/75.1.92}, abstractNote={Adult alfalfa weevils, Hypera postica (Gyllenhal), may exhibit two periods of flight activity during their life cycle. Prediapause flights occur only after newly emerged adults have fed for at least 4 or 5 days, and usually begin in late afternoon or early evening, when air temperatures are above 20°C and light intensity is low or decreasing. These flights are not a direct response to changes in the environment, although unfavorable conditions may accelerate the dispersal process. Postdiapause flights, however, usually occur when weevils do not have an adequate food supply, but still retain sufficient energy reserves for sustained flight activity. Without appropriate tactile or gustatory cues from their host plant, weevils begin to migrate within 24 h. These flights probably occur near midday, because warm temperatures and intense illumination stimulate the greatest flight activity.}, number={1}, journal={ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA}, author={MEYER, JR}, year={1982}, pages={92–98} }