@article{sydorovych_safley_welker_ferguson_monks_jennings_driver_louws_2008, title={Economic evaluation of methyl bromide alternatives for the production of tomatoes in North Carolina}, volume={18}, number={4}, journal={HortTechnology}, author={Sydorovych, O. and Safley, C. D. and Welker, R. M. and Ferguson, L. M. and Monks, D. W. and Jennings, K. and Driver, J. and Louws, F. J.}, year={2008}, pages={705–713} }
 @article{leandro_guzman_ferguson_fernandez_louws_2007, title={Population dynamics of Trichoderma in fumigated and compost-amended soil and on strawberry roots}, volume={35}, ISSN={["1873-0272"]}, DOI={10.1016/j.apsoil.2006.04.008}, abstractNote={Effectiveness of Trichoderma strains for biocontrol of soilborne pathogens requires an improved understanding of soil and root ecology of this fungus. We compared the population dynamics of Trichoderma hamatum strain T382 (T382) and indigenous Trichoderma spp. in soil and on roots in different strawberry production systems. Strawberry transplants, either amended or not-amended with Trichoderma biocontrol strains, were planted in field soil left untreated or treated with soil fumigant, compost, and compost-amended with T382. Soil and root samples were taken between October and June of two production seasons (2002-03 and 2003-04), and Trichoderma populations were assessed by plating soil dilutions and root pieces onto selective medium. Identity of T382 was confirmed using strain-specific primers. T382 became established and maintained a stable population of 103 cfu/g soil throughout the growing season when added to field soil in amended compost, but T382 was rarely isolated from strawberry roots. Populations of indigenous Trichoderma spp. were up to 60-fold greater in fumigated soil than in any other soil treatment. Indigenous Trichoderma spp. were isolated from a greater proportion (20–50%) of roots in fumigated soil than from roots in the other treatments (0–20%). Transplant treatments did not significantly affect Trichoderma populations on roots or in soil during field production. This study showed that compost may be used as a substrate to establish and promote survival of Trichoderma in field soil, and illustrates how soil manipulation can affect population dynamics of indigenous Trichoderma spp. on roots and in soil.}, number={1}, journal={APPLIED SOIL ECOLOGY}, publisher={Elsevier BV}, author={Leandro, L. F. S. and Guzman, T. and Ferguson, L. M. and Fernandez, G. E. and Louws, F. J.}, year={2007}, month={Jan}, pages={237–246} }
 @article{leandro_ferguson_louws_fernandez_2007, title={Strawberry growth and productivity in fumigated compared to compost-amended production systems}, volume={42}, number={2}, journal={HortScience}, author={Leandro, L. F. S. and Ferguson, L. M. and Louws, F. J. and Fernandez, G. E.}, year={2007}, pages={227–231} }
 @article{ferguson_carson_2007, title={Temporal variation in Setosphaeria turcica between 1974 and 1994 and origin of races 1, 23, and 23N in the United States}, volume={97}, ISSN={["0031-949X"]}, DOI={10.1094/PHYTO-97-11-1501}, abstractNote={ Setosphaeria turcica causes northern leaf blight, an economically important disease of maize throughout the world. Survey collections of S. turcica isolates from 1974 to 1994 provided a unique opportunity to examine temporal diversity in the eastern United States. Two hundred forty-two isolates of S. turcica from maize were studied with random amplified polymorphic DNA (RAPD) markers, mating type, and virulence on maize differential inbred lines with known Ht resistance genes to examine changes over time. One hundred forty-nine RAPD haplotypes were identified. Nearly 20% of haplotypes recurred in more than one year. Race 0 isolates declined in frequency from 83% in 1974 to near 50% in the 1990s, most likely in response to the widespread deployment of Ht1 in commercial maize hybrids. Races 23 and 23N were present in the collection at low levels throughout the study period and were also found among isolates from Virginia in 1957. The frequency of MAT1-2 isolates increased sharply after 1979 and was associated with the emergence of race 1 during the same period. RAPD markers were used to investigate the genetic diversity among a subset of isolates collected in the United States from 1976 to 1982, the period in which this dramatic shift in race frequency occurred. Multilocus haplotypes were not exclusively associated with known races of S. turcica. Based on shared haplotypes and cluster analysis, race 1 isolates share greater similarity with race 0 than with 23 or 23N isolates, indicating race 1 probably evolved from multiple lineages of race 0. Sorghum spp.-infecting isolates share greater similarity with one another than with maize-infecting isolates and represent a distinct subgroup. }, number={11}, journal={PHYTOPATHOLOGY}, author={Ferguson, L. M. and Carson, M. L.}, year={2007}, month={Nov}, pages={1501–1511} }
 @article{sydorovych_safley_ferguson_poling_fernandez_brannen_monks_louws_2006, title={Economic evaluation of methyl bromide alternatives for the production of strawberries in the southeastern United States}, volume={16}, number={1}, journal={HortTechnology}, author={Sydorovych, O. and Safley, C. D. and Ferguson, L. M. and Poling, E. B. and Fernandez, G. E. and Brannen, P. A. and Monks, D. M. and Louws, F. J.}, year={2006}, pages={118–128} }
 @article{leandro_ferguson_fernandez_louws_2004, title={Evaluation of Trichoderma strains as biocontrol tools for integrated management of strawberry root rot}, ISBN={9290671708}, journal={Proceedings of a meeting of the WGs : management of plant diseases and arthropod pests by BCAs and their integration in agriculture systems at S. Michele all'Adige, Trentino, Italy, 9-13 June 2004}, publisher={Dijon, France : International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palaearctic Regional Section}, author={Leandro, L. and Ferguson, L. and Fernandez, G. and Louws, F.}, editor={Y. Elad, I. Pertot and Enkegaard, A.Editors}, year={2004} }
 @article{ferguson_carson_2004, title={Spatial diversity of Setosphaeria turcica sampled from the eastern United States}, volume={94}, ISSN={["1943-7684"]}, DOI={10.1094/PHYTO.2004.94.8.892}, abstractNote={ Randomly amplified polymorphic DNA (RAPD) markers and mating type were used to examine regional population structure of Setosphaeria turcica in the eastern United States. Of 251 maize-infecting isolates studied, 155 multilocus haplotypes were identified using 21 RAPD markers. Twelve isolates of the most common haplotype were identified from seven states and represented 5.2% of the sample. Although variation in genetic diversity was greatest within states rather than between either regions or states within regions, multidimensional scaling based on average taxonomic distances among state samples showed a close association of samples from IL, OH, IN, IA, MN, MI/WI, and NC. Isolates from GA/SC, VA/TN, PA/NY, and FL were distant from this core group that included midwestern states and NC and were distinct from one another. The high genotypic diversity, near equal mating type frequencies, and gametic phase equilibrium in samples from several states are inconsistent with a strictly clonal population. The population genetic structure of S. turcica is likely the result of both asexual and sexual reproduction. It is not clear whether sexual recombination actually occurs in the eastern United States or occurs elsewhere in tropical America and recombinant genotypes migrate to North America. }, number={8}, journal={PHYTOPATHOLOGY}, author={Ferguson, LM and Carson, ML}, year={2004}, month={Aug}, pages={892–900} }
 @article{ferguson_shew_2001, title={Wheat straw mulch and its impacts on three soilborne pathogens of peanut in microplots}, volume={85}, ISSN={["1943-7692"]}, DOI={10.1094/PDIS.2001.85.6.661}, abstractNote={ Experiments were conducted in 1992, 1993, and 1994 to determine the effects of surface residue on incidence of Cylindrocladium black rot (CBR), Sclerotinia blight, and Southern stem rot of peanut in microplots in North Carolina. Soil was infested with either Cylindrocladium parasiticum, Sclerotium rolfsii, or Sclerotinia minor and plots were planted with the peanut cultivars NC 7 or NC 10C. Wheat straw was applied to establish 80 to 90% soil-surface coverage. Disease incidence data were collected every 2 weeks in 1992 and weekly in 1993 and 1994. Southern stem rot incidence did not increase with straw amendment but final inoculum density of Sclerotium rolfsii was highest in straw-amended plots. Straw amendment enhanced CBR incidence in 1992, but had minimal effects in 1993 and 1994. Neither root rot severity nor inoculum density of C. parasiticum was affected by straw treatment. Straw application reduced Sclerotinia blight in 1992 and 1993 but not in 1994 compared with unamended plots. Initial inoculum density had the greatest impact on final Sclerotinia minor populations. Soil temperature and moisture were monitored in 1993 and 1994. Soil at 0 to 2 cm of depth in strawamended microplots was 1 to 2°C cooler than in unamended plots. }, number={6}, journal={PLANT DISEASE}, author={Ferguson, LM and Shew, BB}, year={2001}, month={Jun}, pages={661–667} }