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Sensitivity to 12 Fungicides and Resistance Mechanism to Trifloxystrobin, Carbendazim, and Succinate Dehydrogenase Inhibitors in Cucumber Corynespora Leaf Spot (Corynespora cassiicola)
AbstractAbstract
Corynespora cassiicola is the causal agent of cucumber Corynespora leaf spot, which affects many economically important plant species. Chemical control of this disease is hampered by the common development of fungicide resistance. In this study, 100 ...Congruent and Differential Responses of Pseudoperonospora cubensis Clades 1 and 2 to Downy Mildew Fungicides
AbstractAbstract
Fungicides are the most common and important management technique for cucurbit downy mildew. Fungicide efficacy against the causal agent Pseudoperonospora cubensis, an obligate biotroph, has been monitored on potted cucumber seedlings exposed to natural ...
OPENOpen Access licenseSensitivity of Brazilian Isolates of Phytophthora infestans to Commonly Used Fungicides in Tomato and Potato Crops
AbstractAbstract
ABSTRACTIsolates of the US-1 and BR-1 clonal lineages of Phytophthora infestans, collected from tomato and potato fields of two main producing regions of Brazil (south and southeast), were tested for sensitivity to the systemic fungicide metalaxyl, plus ...Sensitivity of Pucciniagraminis f. sp. tritici Isolates From China to Triadimefon and Cross-Resistance Against Diverse Fungicides
AbstractAbstract
Wheat stem rust caused by Puccinia graminis f. sp. tritici is an important wheat disease with sudden and devastating characteristics. The appearance and spread of new P. graminis f. sp. tritici races (Ug99, TKTTF, and TTTTF) have once again renewed the ...Reduced Sensitivity to Tebuconazole in Botryosphaeria dothidea Isolates Collected from Major Apple Production Areas of China
AbstractAbstract
China has the largest acreage and is the greatest producer of apples in the world. Apple ring rot (ARR) caused by Botryosphaeria dothidea is one of the major diseases affecting apple fruit production. Tebuconazole, a sterol demethylation-inhibiting (DMI) ...Characterization of Prochloraz Resistance in Fusarium fujikuroi from Heilongjiang Province in China
AbstractAbstract
Prochloraz is widely used to control rice bakanae disease caused by Fusarium fujikuroi. The current study was aimed at monitoring the development of F. fujikuroi resistance to prochloraz in the Heilongjiang Province and analyzing the fitness of F. ...Optimizing the Integration of a Biopesticide (Bacillus subtilis QST 713) with a Single-Site Fungicide (Benzovindiflupyr) to Reduce Reliance on Synthetic Multisite Fungicides (Captan and Mancozeb) for Management of Apple Scab
AbstractAbstract
Apple scab is one of the most economically important diseases of apple in temperate production regions. In the absence of durable host resistance in commercially preferred cultivars, considerable applications of fungicides are needed to manage this ...- OPENOpen Access license
A Rapid Glove-Based Inoculum Sampling Technique to Monitor Erysiphe necator in Commercial Vineyards
AbstractAbstract
Information on the presence and severity of grape powdery mildew (GPM), caused by Erysiphe necator, has long been used to guide management decisions. While recent advances in the available molecular diagnostic assays and particle samplers have made ... Widespread QoI Fungicide Resistance Revealed Among Corynespora cassiicola Tomato Isolates in Florida
AbstractAbstract
Target spot of tomato caused by Corynespora cassiicola is one of the most economically destructive diseases of tomato in Florida. A collection of 123 isolates from eight counties in Florida were evaluated for sensitivity to azoxystrobin and fenamidone ...Identification and Characterization of Fungicide Resistance in Botrytis Populations from Small Fruit Fields in the Mid-Atlantic United States
AbstractAbstract
From 2014 to 2019, 249 isolates of Botrytis spp. were collected from blackberry, black raspberry, grape, red raspberry, and strawberry showing gray mold symptoms. All isolates were phylogenetically characterized as Botrytis cinerea. A mycelial growth ...A Rapid Molecular Detection System for SdhB and SdhC Point Mutations Conferring Differential Succinate Dehydrogenase Inhibitor Resistance in Clarireedia Populations
AbstractAbstract
Dollar spot, caused by the ascomycete fungus Clarireedia (formerly Sclerotinia), is one of the most resource-demanding diseases on amenity turfgrasses in North America. Differential resistance to the succinate dehydrogenase inhibitor (SDHI) fungicide ...Sensitivity of Colletotrichum fructicola and Colletotrichum siamense of Peach in China to Multiple Classes of Fungicides and Characterization of Pyraclostrobin-Resistant Isolates
AbstractAbstract
Anthracnose, mainly caused by Colletotrichum gloeosporioides species complex including Colletotrichum fructicola and Colletotrichum siamense, is a devastating disease of peach. Chemical control has been widely used for years, but management failures have ...Sensitivity of Venturia carpophila from China to Five Fungicides and Characterization of Carbendazim-Resistant Isolates
AbstractAbstract
Peach scab is a fungal disease caused by Venturia carpophila that can significantly reduce peach yield and quality. Fungicide application is the main control measure for peach scab worldwide. To better understand the fungicide-resistance status and devise ...Sensitivity of Colletotrichum nymphaeae to Six Fungicides and Characterization of Fludioxonil-Resistant Isolates in China
AbstractAbstract
Colletotrichum nymphaeae is the dominant species causing anthracnose disease of peach in China. In this study, 140 isolates of C. nymphaeae were assessed for their sensitivity to six fungicides. It was found that C. nymphaeae was highly resistant to ...Baseline Sensitivity of Botrytis cinerea Isolates from Strawberry to Isofetamid Compared to other SDHIs
AbstractAbstract
Succinate dehydrogenase inhibitors (SDHIs) are the fungicides most commonly used to control Botrytis fruit rot on commercial strawberry in Florida. The medium-to-high risk of selection of resistance in the causal agent Botrytis cinerea is a threat to the ...PCR-RFLP for Detection of Fusarium graminearum Genotypes with Resistance to Phenamacril
AbstractAbstract
Phenamacril is a cyanoacrylate fungicide that provides excellent control of Fusarium head blight (FHB) or wheat scab, which is caused predominantly by Fusarium graminearum and F. asiaticum. Previous studies revealed that codon mutations of the myosin-5 ...Field Assessment of Six Point-Mutations in SDH Subunit Genes Conferring Varying Resistance Levels to SDHIs in Clarireedia spp.
AbstractAbstract
Dollar spot, caused by Clarireedia spp. (formerly Sclerotinia homoeocarpa F.T. Bennett), is the most economically important turfgrass disease causing considerable damage on golf courses. While cultural practices are available for reducing dollar spot ...Fungicide Sensitivity of Colletotrichum Species Causing Bitter Rot of Apple in the Mid-Atlantic U.S.A.
AbstractAbstract
Apple growers in the Mid-Atlantic region of the U.S.A. have reported increased losses to bitter rot of apple. We tested the hypothesis that this increase is because the Colletotrichum population has developed resistance to commonly used single-mode-of-...Defining Fungicide Resistance Mechanisms in the Corynespora cassiicola Population from Mississippi Soybean
AbstractAbstract
Target spot, caused by Corynespora cassiicola, is a common lower canopy soybean disease in the southern United States. Recently, target spot has resurged in importance especially following the identification of resistance to the quinone outside inhibitor (...Evaluating In Vitro Fitness Parameters of G143A-Containing and Wild-Type Corynespora cassiicola Isolates from Mississippi Soybean
AbstractAbstract
Quinone outside inhibitor (QoI) fungicides have been widely used to manage diseases of soybean including target spot caused by Corynespora cassiicola. However, resistance to QoI fungicides has recently been reported within the C. cassiicola population ...