Richard Mankin | USDA Agricultural Research Service (original) (raw)
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Papers by Richard Mankin
Florida Entomologist, Sep 1, 2006
Journal of Economic Entomology, Jun 1, 2008
Encyclopedia of Entomology, 2008
Annals of The Entomological Society of America, May 1, 2009
Environmental Entomology, Jun 1, 2006
Physiological and Molecular Plant Pathology, 2018
Journal of Asia-pacific Entomology, Dec 1, 2016
Journal of Economic Entomology, Jan 7, 2016
Annals of The Entomological Society of America, May 1, 2013
Parasites & Vectors, Sep 6, 2019
The 1st All Africa Post Harvest Congress & Exhibition, Reducing food losses and waste: sustainable solutions for Africa, 28th-31st March 2017, Nairobi, Kenya. Conference Proceedings, 2017
BMC Zoology, 2020
Background Increases in global mean temperature, changes in rainfall patterns, and extreme climat... more Background Increases in global mean temperature, changes in rainfall patterns, and extreme climatic events are expected results of climate change. The individual effects of elevated temperature and precipitation on insect pests due to the impact of climate change have been widely modeled individually but their combined effects are poorly understood. Results Ten years of monthly abundance of an important economic rice insect pest, the rice yellow stem borer (YSB), Scirpophaga incertulas Walker (Lepidoptera: Pyralidae), was modeled in relation to temperature and rainfall using cross-correlation functions, general linear models, ARIMA models and simple linear regressions. The results suggested that increasing temperature and rainfall separately had a positive effect on growth rate of YSB. However, the combined effect of high temperature and rainfall was negative Temperature affected abundance of YSB negatively at high rainfall, but positively at intermediate to low rainfall level. The ...
Florida Entomologist, 2019
Biosystems Engineering, 2019
Proceedings of Meetings on Acoustics, 2018
Journal of Economic Entomology, 2019
Modified atmospheres such as hermetic storage are widely used for the control of stored grain ins... more Modified atmospheres such as hermetic storage are widely used for the control of stored grain insect pests. To improve their effectiveness, there is need to better understand insect responses to low-oxygen environments. Adult Callosobruchus maculatus F. (Coleoptera: Chrysomelidae: Bruchinae) on cowpea and Sitophilus oryzae L. (Coleoptera: Curculionidae) on wheat were exposed to hypoxia treatments consisting of 1, 3, and 5% oxygen levels for 14 d. Acoustic activity was monitored during the experiment, and insect mortality and grain quality were examined immediately after the hypoxia treatments. Adult emergence was assessed 45 d post-treatment. All three hypoxia treatments eliminated acoustic activity of both species within 4 d. There was neither insect survival for both species nor significant grain damage immediately after 14-d exposure to hypoxia treatments. No adult insects emerged 45 d post-exposure on grains maintained at 1% oxygen level for 14 d. However, at 3 and 5% oxygen lev...
Florida Entomologist, 2016
Physiological and Molecular Plant Pathology, 2017
Annals of the Entomological Society of America, 2017
Journal of Economic Entomology, 2017
Florida Entomologist, Sep 1, 2006
Journal of Economic Entomology, Jun 1, 2008
Encyclopedia of Entomology, 2008
Annals of The Entomological Society of America, May 1, 2009
Environmental Entomology, Jun 1, 2006
Physiological and Molecular Plant Pathology, 2018
Journal of Asia-pacific Entomology, Dec 1, 2016
Journal of Economic Entomology, Jan 7, 2016
Annals of The Entomological Society of America, May 1, 2013
Parasites & Vectors, Sep 6, 2019
The 1st All Africa Post Harvest Congress & Exhibition, Reducing food losses and waste: sustainable solutions for Africa, 28th-31st March 2017, Nairobi, Kenya. Conference Proceedings, 2017
BMC Zoology, 2020
Background Increases in global mean temperature, changes in rainfall patterns, and extreme climat... more Background Increases in global mean temperature, changes in rainfall patterns, and extreme climatic events are expected results of climate change. The individual effects of elevated temperature and precipitation on insect pests due to the impact of climate change have been widely modeled individually but their combined effects are poorly understood. Results Ten years of monthly abundance of an important economic rice insect pest, the rice yellow stem borer (YSB), Scirpophaga incertulas Walker (Lepidoptera: Pyralidae), was modeled in relation to temperature and rainfall using cross-correlation functions, general linear models, ARIMA models and simple linear regressions. The results suggested that increasing temperature and rainfall separately had a positive effect on growth rate of YSB. However, the combined effect of high temperature and rainfall was negative Temperature affected abundance of YSB negatively at high rainfall, but positively at intermediate to low rainfall level. The ...
Florida Entomologist, 2019
Biosystems Engineering, 2019
Proceedings of Meetings on Acoustics, 2018
Journal of Economic Entomology, 2019
Modified atmospheres such as hermetic storage are widely used for the control of stored grain ins... more Modified atmospheres such as hermetic storage are widely used for the control of stored grain insect pests. To improve their effectiveness, there is need to better understand insect responses to low-oxygen environments. Adult Callosobruchus maculatus F. (Coleoptera: Chrysomelidae: Bruchinae) on cowpea and Sitophilus oryzae L. (Coleoptera: Curculionidae) on wheat were exposed to hypoxia treatments consisting of 1, 3, and 5% oxygen levels for 14 d. Acoustic activity was monitored during the experiment, and insect mortality and grain quality were examined immediately after the hypoxia treatments. Adult emergence was assessed 45 d post-treatment. All three hypoxia treatments eliminated acoustic activity of both species within 4 d. There was neither insect survival for both species nor significant grain damage immediately after 14-d exposure to hypoxia treatments. No adult insects emerged 45 d post-exposure on grains maintained at 1% oxygen level for 14 d. However, at 3 and 5% oxygen lev...
Florida Entomologist, 2016
Physiological and Molecular Plant Pathology, 2017
Annals of the Entomological Society of America, 2017
Journal of Economic Entomology, 2017