Association of Insects and Ergot (Claviceps purpurea) in Kentucky Bluegrass Seed Production Fields

@inproceedings{Butler2001AssociationOI,
  title={Association of Insects and Ergot (Claviceps purpurea) in Kentucky Bluegrass Seed Production Fields},
  author={Marvin D. Butler and Stephen C. Alderman and Paul C. Hammond and Ralph E. Berry},
  booktitle={Journal of economic entomology},
  year={2001}
}
Abstract Insects in Kentucky bluegrass seed production fields in Oregon, Iaho, and Washington were sampled just before harvest and their association with ergot conidia of Claviceps purpurea Fr. [] Key Result A diversity of insects was observed at all three locations. The most abundant beneficial insects collected with sweep nets were Nysium spp., Nabis spp., ichneumonid wasps, and Hippodamia spp.
Timing of Occurrence of Claviceps purpurea Ascospores in Northeast Oregon
TLDR
Year when there are few ascospores during flowering in Kentucky bluegrass, a reduction of up to two fungicide applications may be possible, suggesting that fungicides for ergot control were unnecessary.
Identification of Environmental Factors Related to Claviceps purpurea Ascospore Production in Perennial Ryegrass Seed Fields and Development of Predictive Models.
TLDR
The results suggest that weather parameters can be used to model C. purpurea ascospore occurrence and potentially improve the timing and efficacy of fungicide applications by identifying when plant protection is most needed.
Spatial Patterns of Ergot and Quantification of Sclerotia in Perennial Ryegrass Seed Fields in Eastern Oregon.
TLDR
This is the first study to quantify spatial patterns of ergot in perennial ryegrass and provides insights into possible mechanisms that contribute to ergot etiology and epidemiology.
Regiocrella, a new entomopathogenic genus with a pycnidial anamorph and its phylogenetic placement in the Clavicipitaceae.
TLDR
Regiocrella is shown to be closely related to the scale insect pathogen Hypocrella and the plant-associated genera Balansia, Claviceps, Epichlöe, Myriogenospora and Neoclaviceps and to have multiple evolutionary origins within the Clavicipitaceae.
Regiocrella, a new entomopathogenic genus with a pycnidial anamorph and its phylogenetic placement in the Clavicipitaceae
TLDR
Regiocrella is shown to be closely related to the scale insect pathogen Hypocrella and the plant-associated genera Balansia, Claviceps, Epichlöe, Myriogenospora and Neoclaviceps and the evolution of pycnidial-acervular conidiomata and scale insect parasitism within the Clavicipitaceae.
A monograph of the entomopathogenic genera Hypocrella, Moelleriella, and Samuelsia gen. nov. (Ascomycota, Hypocreales, Clavicipitaceae), and their aschersonia-like anamorphs in the Neotropics
The present taxonomic revision deals with Neotropical species of three entomopathogenic genera that were once included in Hypocrella s. l.: Hypocrella s. str. (anamorph Aschersonia), Moelleriella
Effects of Temperature and Duration of Preconditioning Cold Treatment on Sclerotial Germination of Claviceps purpurea.
TLDR
A simple model was developed based on laboratory results and validated with historic spore trap data collected from various Kentucky bluegrass fields in Oregon and could predict ascospore onset well and explained 55% of variation in the data.
Extending the growing season: forage seed production and perennial grains1
TLDR
Perennial grains could greatly increase the land area dedicated to perennial seed production and provide alternative markets for forage products and forage seed in western Canada.
Dispersal Strategies of Microfungi
TLDR
The significance of the new technology used in the recent studies on dispersal strategies is presented and the latest development of research on the dispersal process is covered: liberation, transporation, deposition, resuspension, and survival of fungal spores and other propagules from microscale to macroscale.
Host-to-Pathogen Gene Transfer Facilitated Infection of Insects by a Pathogenic Fungus
TLDR
A pathogenicity defective mutant that resulted from the disruption of a sterol carrier gene (Mr-npc2a) was obtained from a random T-DNA insertion library and revealed that Metarhizium acquired Mr-nPC2a from an insect by horizontal gene transfer (HGT).
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