@article{saha_schwarz_mowery_gorny_2023, title={Reaction of Winter Cover Crops to Meloidogyne enterolobii and Glasshouse Bioassay for Evaluating Utility in Managing M. enterolobii in Soybeans}, volume={55}, ISSN={["2640-396X"]}, DOI={10.2478/jofnem-2023-0014}, abstractNote={Abstract Meloidogyne enterolobii is an invasive and highly aggressive root-knot nematode pathogen impacting the Southeastern United States. Winter cover cropping may be a cost-effective method for reducing populations of M. enterolobii in between summer cash crops, yet a gap in the knowledge remains about the response of these cover crops to M. enterolobii and their utility in suppressing nematode populations prior to a cash crop. A “two-step” glasshouse bioassay was performed to evaluate eight winter cover crops popular in North Carolina for their direct response to M. enterolobii infection, and to quantify their effect in reducing nematode populations for the following soybean plants. Data on cover crop root galling, soybean root galling, soybean shoot fresh weight, soybean root fresh weight, eggs per gram of soybean root, and a modified reproductive factor were collected. Cereal cover crops did not display root galling, and there was significantly less root galling in those soybean plants following cereal winter cover crops when compared to those following broadleaf winter cover crops. Broadleaf winter cover crops resulted in significantly higher eggs per gram of soybean root and modified reproductive factor in the soybean plants, compared to cereal cover crops and non-inoculated controls. Results from this study suggest that cereal winter cover crops may be poor-hosts to M. enterolobii and may significantly reduce M. enterolobii populations before a soybean crop, compared to broadleaf winter cover crops. This study lays the groundwork for management recommendations and future field trials to assess management of M. enterolobii through winter cover cropping.}, number={1}, journal={JOURNAL OF NEMATOLOGY}, author={Saha, Neel and Schwarz, Tanner and Mowery, Samantha and Gorny, Adrienne M.}, year={2023}, month={Feb}, pages={1–10} }
 @article{jordan_buol_brandenburg_shew_wilkerson_lassiter_dunne_gorny_washburn_hoisington_et al._2022, title={A Risk Tool and Production Log Created using Microsoft Excel to Manage Pests in Peanut (Arachis hypogaea)}, volume={13}, ISSN={["2155-7470"]}, DOI={10.1093/jipm/pmac006}, abstractNote={Peanut (Arachis hypogaea L.) growers and their advisors need to address a wide range of biotic and abiotic stresses to maximize yield and financial return. Mitigating risk to yield and financial investment requires knowledge of interactions among pests and strategies to manage pests, including chemical inputs, crop rotation, cultivar selection, field pest history, planting pattern and population, planting date, and tillage systems. Using Microsoft Excel, a comprehensive peanut risk tool was developed to assist growers and advisors in identifying and selecting production strategies to minimize risk to yield based on empirical data and practical experience while providing cost estimates of production practices. Initially, the risk tool was developed for North Carolina (USA) peanut production. However, the current platform is designed to facilitate the development of similar tools for other USA peanut regions, peanut production systems in other countries, and with the capability to develop risk tools for other crops. This article discusses components of the risk management tool developed for North Carolina peanut production. Benefits of the risk tool to practitioners, extension services, genetics and breeding programs, and formal classroom instruction will be discussed. One goal of this paper is to provide an example of how the Microsoft Excel framework used for peanut in North Carolina can be used for peanut in other regions of the USA and other countries.}, number={1}, journal={JOURNAL OF INTEGRATED PEST MANAGEMENT}, author={Jordan, David L. and Buol, Greg S. and Brandenburg, Rick L. and Shew, Barbara B. and Wilkerson, Gail G. and Lassiter, Bridget R. and Dunne, Jeff and Gorny, Adrienne and Washburn, Derek and Hoisington, David and et al.}, year={2022}, month={Jan} }
 @article{mahecha-garnica_ye_schumacher_gorny_2022, title={Soybean Cyst Nematode of Soybean: A Diagnostic Guide}, ISSN={["1535-1025"]}, DOI={10.1094/PHP-11-21-0138-DG}, abstractNote={The soybean cyst nematode (SCN; Heterodera glycines Ichinohe 1952) is one of the most economically important pathogens of soybean. The species impacts soybean production worldwide and causes significant yield loss even in the absence of visible aboveground symptoms. This diagnostic guide describes the host range, signs, symptoms, and geographic distribution of SCN, and includes information regarding pathogen identification, storage, and pathogenicity tests for this nematode.}, journal={PLANT HEALTH PROGRESS}, author={Mahecha-Garnica, Sofia and Ye, Weimin and Schumacher, Lesley A. and Gorny, Adrienne M.}, year={2022}, month={Jul} }
 @article{gorny_hay_pethybridge_2021, title={Response of potato cultivars to the northern root-knot nematode, Meloidogyne hapla, under field conditions in New York State, USA}, volume={23}, ISSN={["1388-5545"]}, DOI={10.1163/15685411-bja10050}, abstractNote={Summary In New York and the Northeastern USA, the northern root-knot nematode, Meloidogyne hapla , is an important soil-borne pathogen of potato. The economic threshold for M. hapla in potato production has been 100 second-stage juveniles (J2) (100 g soil) −1 , and is often used to dictate the need for prophylactic nematicides. However, the response of newer, popular potato cultivars under field conditions to M. hapla is unknown. The relationships between initial and final M. hapla populations and potato yield components in the popular cultivars ‘Genesee’, ‘Eva’ and ‘Lamoka’ were evaluated in three commercial production fields in New York, in 2016 and 2017. Following manual extraction from soil samples, M. hapla populations were quantified. Additionally, a glasshouse bioassay was performed to estimate M. hapla populations and correlate tuber yield. Populations of M. hapla over both years ranged from 0 to 519 J2 (100 g soil) −1 at the initial sampling, and from 0 to 10 294 J2 (100 g soil) −1 at the final sampling time. No significant correlation was observed between initial M. hapla populations and tuber yield, or between bioassay plant galling severity and tuber yield, among the cultivars included in the study in either year of the study. Yet correlations between bioassay plant galling severity and M. hapla populations were significant in both years, indicating the bioassay was adept at estimating M. hapla populations. These results will aid in directing future investigations into tolerance to M. hapla and nematode management.}, number={4}, journal={NEMATOLOGY}, author={Gorny, Adrienne M. and Hay, Frank S. and Pethybridge, Sarah J.}, year={2021}, month={Apr}, pages={425–433} }
 @article{gorny_ye_cude_thiessen_2021, title={Soybean Root-Knot Nematode: A Diagnostic Guide}, volume={22}, ISSN={["1535-1025"]}, DOI={10.1094/PHP-01-21-0005-DG}, abstractNote={Root-knot nematodes (Meloidogyne spp.) are one of the most economically important plant parasites in the world, and significantly impacts soybean production in places where they are endemic. Several species of root-knot nematode are capable of causing significant damages to soybean and have broad host ranges that include common rotational crops and weeds. Symptoms of root-knot nematode infections may be confused with other diseases, nutritional disorders, or common root features associated with legumes. The purpose of this diagnostic guide is to provide information regarding identification, isolation, storage, and other relevant aspects of this pathosystem.}, number={2}, journal={PLANT HEALTH PROGRESS}, author={Gorny, Adrienne M. and Ye, Weimin and Cude, Sam and Thiessen, Lindsey}, year={2021}, pages={164–175} }
 @article{gorny_hay_esker_pethybridge_2021, title={Spatial and spatiotemporal analysis of Meloidogyne hapla and Pratylenchus penetrans populations in commercial potato fields in New York, USA}, volume={23}, ISSN={["1388-5545"]}, DOI={10.1163/15685411-bja10034}, abstractNote={Summary Meloidogyne hapla and Pratylenchus penetrans are important plant-parasitic nematodes affecting potato in New York and the Northeastern United States, yet little is known of their spatial patterns and spatiotemporal dynamics. Spatial patterns of M. hapla and Pratylenchus spp. were quantified using semivariogram analysis and Spatial Analysis by Distance IndicEs (SADIE). Nematode populations were assessed within each of three commercial potato fields in 2016 and 2017, with fields sampled on two occasions in-season. Semivariogram analysis and ordinary kriging indicated initial population densities to be spatially dependent over an average range of 110 m for M. hapla and 147 m for Pratylenchus spp. SADIE indicated Pratylenchus spp. to be significantly aggregated in nearly all fields (10 of 12 samplings, to 2.113). Meloidogyne hapla populations were aggregated in only three of 12 samplings ( to 1.738). Spatiotemporal analysis using the association function of SADIE indicated a strong and significant association between initial and final population densities of M. hapla and Pratylenchus spp. within fields. This information is fundamental for the development of enhanced sampling protocols for estimation of plant-parasitic nematodes and evaluating the feasibility of site-specific nematicide application in New York potato fields.}, number={2}, journal={NEMATOLOGY}, author={Gorny, Adrienne M. and Hay, Frank S. and Esker, Paul and Pethybridge, Sarah J.}, year={2021}, month={Jan}, pages={139–151} }
 @misc{philbrick_adhikari_louws_gorny_2020, title={Meloidogyne enterolobii, a Major Threat to Tomato Production: Current Status and Future Prospects for Its Management}, volume={11}, ISSN={["1664-462X"]}, url={https://publons.com/wos-op/publon/37225863/}, DOI={10.3389/fpls.2020.606395}, abstractNote={The guava root-knot nematode, Meloidogyne enterolobii (Syn. M. mayaguensis), is an emerging pathogen to many crops in the world. This nematode can cause chlorosis, stunting, and reduce yields associated with the induction of many root galls on host plants. Recently, this pathogen has been considered as a global threat for tomato (Solanum lycopersicum L.) production due to the lack of known resistance in commercially accepted varieties and the aggressiveness of M. enterolobii. Both conventional morphological and molecular approaches have been used to identify M. enterolobii, an important first step in an integrated management. To combat root-knot nematodes, integrated disease management strategies such as crop rotation, field sanitation, biocontrol agents, fumigants, and resistant cultivars have been developed and successfully used in the past. However, the resistance in tomato varieties mediated by known Mi-genes does not control M. enterolobii. Here, we review the current knowledge on geographic distribution, host range, population biology, control measures, and proposed future strategies to improve M. enterolobii control in tomato.}, journal={FRONTIERS IN PLANT SCIENCE}, author={Philbrick, Ashley N. and Adhikari, Tika B. and Louws, Frank J. and Gorny, Adrienne M.}, year={2020}, month={Nov} }