The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Endre Széll - One of the best experts on this subject based on the ideXlab platform.
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Field Data on the Presence of Spiders Preying on Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Szeged Region, Hungary
Acta Phytopathologica et Entomologica Hungarica, 2020Co-Authors: Ferenc Tóth, L. Horváth, J. Komáromi, J. Kiss, Endre SzéllAbstract:The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is a new pest of corn in Europe. Future management may include the use of natural enemies. Our study focused on the determination of density and species composition of spiders in corn fields, as well as in the adjacent corn field margins, during the peak flight period of WCR adults. An additional objective was to test different sampling methods, used for spider collecting, in corn fields and in adjacent corn field margins. The field study was conducted in July and August, 1999, in experimental corn plots, as well as in the adjacent field margins, owned by the Cereal Research Institute, Szeged, in Southern Hungary. Spiders were collected by individual plant search and by Sweep Nets. Number of spiders /m2 was significantly higher, whereas /m3 was significantly lower in the corn plots compared to the adjacent field margins. Remnants of WCR adults were found in theridiid [Theridion impressum L. Koch, T. pictum (Walckenaer), Enoplognatha latimana Hippa and Oksala] and agelenid (Agelena sp.) webs. We observed that individuals of both families were able to kill 1-5 adult beetles within 90 minutes
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Field Data on the Presence of Spiders Preying on Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Szeged Region, Hungary
Acta Phytopathologica Et Entomologica Hungarica, 2002Co-Authors: Ferenc Tóth, L. Horváth, J. Komáromi, J. Kiss, Endre SzéllAbstract:The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is a new pest of corn in Europe. Future management may include the use of natural enemies. Our study focused on the determination of density and species composition of spiders in corn fields, as well as in the adjacent corn field margins, during the peak flight period of WCR adults. An additional objective was to test different sampling methods, used for spider collecting, in corn fields and in adjacent corn field margins. The field study was conducted in July and August, 1999, in experimental corn plots, as well as in the adjacent field margins, owned by the Cereal Research Institute, Szeged, in Southern Hungary. Spiders were collected by individual plant search and by Sweep Nets. Number of spiders /m2 was significantly higher, whereas /m3 was significantly lower in the corn plots compared to the adjacent field margins. Remnants of WCR adults were found in theridiid [Theridion impressum L. Koch, T. pictum (Walckenaer), Enoplognat...
B.m. Atta - One of the best experts on this subject based on the ideXlab platform.
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Transmission of Chickpea chlorotic dwarf virus in Chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan - Short communication
Plant protection science, 2018Co-Authors: K.p. Akhtar, M. Ahmad, T.m. Shah, B.m. AttaAbstract:Akhtar K.P., Ahmad M., ShahT.M., Atta B.M. (2011): Transmission of Chickpea chlorotic dwarf virus in chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan – Short communication. Plant Protect. Sci., 47: 1–4. Chickpea chlorotic dwarf virus (CpCDV, genus Mastervirus, family Geminiviridae) is the most common viral disease of chickpea in Pakistan. Two aphid [Aphis craccivora Koch, Myzus persicae (Sulzer)], two leafhopper [Empoasca devastans Distant, Orosius albicinctus (Distant)] species and an unidentified brown leafhopper were collected in a chickpea field by hand and Sweep Nets for transmission studies of CpCDV. Transmission results showed that only the leafhopper O. albicinctus successfully transmitted the CpCDV from diseased to healthy chickpea plants. The presence of CpCDV in inoculated plants and the vector O. albicinctus were confirmed by DAS-ELISA test using specific polyclonal antibodies.
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Transmission of Chickpea chlorotic dwarf virus in Chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan – Short communication
Plant Protection Science, 2011Co-Authors: K.p. Akhtar, M. Ahmad, T.m. Shah, B.m. AttaAbstract:Chickpea chlorotic dwarf virus (CpCDV, genus Mastervirus, family Geminiviridae) is the most common viral disease of chickpea in Pakistan. Two aphid [Aphis craccivora Koch, Myzus persicae (Sulzer)], two leafhopper [Empoasca devastans Distant, Orosius albicinctus (Distant)] species and an unidentified brown leafhopper were collected in a chickpea field by hand and Sweep Nets for transmission studies of CpCDV. Transmission results showed that only the leafhopper O. albicinctus successfully transmitted the CpCDV from diseased to healthy chickpea plants. The presence of CpCDV in inoculated plants and the vector O. albicinctus were confirmed by DAS-ELISA test using specific polyclonal antibodies.
Ferenc Tóth - One of the best experts on this subject based on the ideXlab platform.
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Field Data on the Presence of Spiders Preying on Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Szeged Region, Hungary
Acta Phytopathologica et Entomologica Hungarica, 2020Co-Authors: Ferenc Tóth, L. Horváth, J. Komáromi, J. Kiss, Endre SzéllAbstract:The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is a new pest of corn in Europe. Future management may include the use of natural enemies. Our study focused on the determination of density and species composition of spiders in corn fields, as well as in the adjacent corn field margins, during the peak flight period of WCR adults. An additional objective was to test different sampling methods, used for spider collecting, in corn fields and in adjacent corn field margins. The field study was conducted in July and August, 1999, in experimental corn plots, as well as in the adjacent field margins, owned by the Cereal Research Institute, Szeged, in Southern Hungary. Spiders were collected by individual plant search and by Sweep Nets. Number of spiders /m2 was significantly higher, whereas /m3 was significantly lower in the corn plots compared to the adjacent field margins. Remnants of WCR adults were found in theridiid [Theridion impressum L. Koch, T. pictum (Walckenaer), Enoplognatha latimana Hippa and Oksala] and agelenid (Agelena sp.) webs. We observed that individuals of both families were able to kill 1-5 adult beetles within 90 minutes
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Field Data on the Presence of Spiders Preying on Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Szeged Region, Hungary
Acta Phytopathologica Et Entomologica Hungarica, 2002Co-Authors: Ferenc Tóth, L. Horváth, J. Komáromi, J. Kiss, Endre SzéllAbstract:The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is a new pest of corn in Europe. Future management may include the use of natural enemies. Our study focused on the determination of density and species composition of spiders in corn fields, as well as in the adjacent corn field margins, during the peak flight period of WCR adults. An additional objective was to test different sampling methods, used for spider collecting, in corn fields and in adjacent corn field margins. The field study was conducted in July and August, 1999, in experimental corn plots, as well as in the adjacent field margins, owned by the Cereal Research Institute, Szeged, in Southern Hungary. Spiders were collected by individual plant search and by Sweep Nets. Number of spiders /m2 was significantly higher, whereas /m3 was significantly lower in the corn plots compared to the adjacent field margins. Remnants of WCR adults were found in theridiid [Theridion impressum L. Koch, T. pictum (Walckenaer), Enoplognat...
Alison Furler - One of the best experts on this subject based on the ideXlab platform.
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Characterizing macroinvertebrate community composition and abundance in freshwater tidal wetlands of the Sacramento-San Joaquin Delta
PLOS ONE, 2019Co-Authors: Rosemary Hartman, Stacy Sherman, Dave Contreras, Alison FurlerAbstract:Restored tidal wetlands may provide important food web support for at-risk fish species in the Sacramento-San Joaquin Delta (Delta) of California, including Delta Smelt (Hypomesus transpacificus) and Chinook Salmon (Oncorhynchus tshawytscha). Since many tidal wetland restoration projects are planned or have recently been constructed in the Delta, understanding the diversity and variability of wetland invertebrates that are fish prey items is of increasing importance. During this study, two different invertebrate sampling techniques were tested (leaf packs and Sweep Nets) in four habitat types within three different wetland areas to evaluate which sampling technique provided the most reliable metric of invertebrate abundance and community composition. Sweep Nets provided a better measure of fish food availability than leaf packs and were better able to differentiate between habitat types. Generalized linear models showed submerged and floating vegetation had higher abundance and taxa richness than channel habitats or emergent vegetation. Permutational multivariate analysis of variance showed significantly different communities of invertebrates in different habitat types and in different wetlands, and point-biserial correlation coefficients found a greater number of mobile taxa associated with Sweep Nets. There were more taxa associated with vegetated habitats than channel habitats, and one area had more taxa associated with it than the other two areas. These results suggest that restoration sites that contain multiple habitat types may enhance fish invertebrate prey diversity and resilience. However, the effect of habitat diversity must be monitored as restoration sites develop to assess actual benefits to at-risk fish species.
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Characterizing macroinvertebrate community composition and abundance in freshwater tidal wetlands of the Sacramento-San Joaquin Delta
bioRxiv, 2019Co-Authors: Rosemary Hartman, Stacy Sherman, Dave Contreras, Alison FurlerAbstract:Restored tidal wetlands may provide important food web support for at-risk fish species in the Sacramento-San Joaquin Delta (Delta) of California, including Delta Smelt (Hypomesus transpacificus) and Chinook Salmon (Oncorhynchus tshawytscha). Since many tidal wetland restoration projects are planned or have recently been constructed in the Delta, understanding the diversity and variability of wetland invertebrates that are fish prey items is of increasing importance. During this study, two different invertebrate sampling techniques were tested (leaf packs and Sweep Nets) in four habitat types within three different wetland sites to evaluate which sampling technique provided the most reliable metric of invertebrate abundance and community composition. Sweep Nets provided a better measure of fish food availability than leaf packs and were better able to differentiate between habitat types. Generalized linear models showed submerged and floating vegetation had higher abundance and species richness than channel habitats or emergent vegetation. Permutational multivariate analysis of variance showed significantly different communities of invertebrates in different habitat types and in different wetlands, and point-biserial correlation coefficients found a greater number of mobile taxa associated with Sweep Nets. There were more taxa associated with vegetated habitats than channel habitats, and one region had more taxa associated with it than the other two regions. These results suggest that restoration sites that contain multiple habitat types may enhance fish invertebrate prey diversity and resilience. However, the effect of habitat diversity must be monitored as restoration sites develop to assess actual benefits to at-risk fish species.
K.p. Akhtar - One of the best experts on this subject based on the ideXlab platform.
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Transmission of Chickpea chlorotic dwarf virus in Chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan - Short communication
Plant protection science, 2018Co-Authors: K.p. Akhtar, M. Ahmad, T.m. Shah, B.m. AttaAbstract:Akhtar K.P., Ahmad M., ShahT.M., Atta B.M. (2011): Transmission of Chickpea chlorotic dwarf virus in chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan – Short communication. Plant Protect. Sci., 47: 1–4. Chickpea chlorotic dwarf virus (CpCDV, genus Mastervirus, family Geminiviridae) is the most common viral disease of chickpea in Pakistan. Two aphid [Aphis craccivora Koch, Myzus persicae (Sulzer)], two leafhopper [Empoasca devastans Distant, Orosius albicinctus (Distant)] species and an unidentified brown leafhopper were collected in a chickpea field by hand and Sweep Nets for transmission studies of CpCDV. Transmission results showed that only the leafhopper O. albicinctus successfully transmitted the CpCDV from diseased to healthy chickpea plants. The presence of CpCDV in inoculated plants and the vector O. albicinctus were confirmed by DAS-ELISA test using specific polyclonal antibodies.
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Transmission of Chickpea chlorotic dwarf virus in Chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan – Short communication
Plant Protection Science, 2011Co-Authors: K.p. Akhtar, M. Ahmad, T.m. Shah, B.m. AttaAbstract:Chickpea chlorotic dwarf virus (CpCDV, genus Mastervirus, family Geminiviridae) is the most common viral disease of chickpea in Pakistan. Two aphid [Aphis craccivora Koch, Myzus persicae (Sulzer)], two leafhopper [Empoasca devastans Distant, Orosius albicinctus (Distant)] species and an unidentified brown leafhopper were collected in a chickpea field by hand and Sweep Nets for transmission studies of CpCDV. Transmission results showed that only the leafhopper O. albicinctus successfully transmitted the CpCDV from diseased to healthy chickpea plants. The presence of CpCDV in inoculated plants and the vector O. albicinctus were confirmed by DAS-ELISA test using specific polyclonal antibodies.
