Presentation is loading. Please wait.

Presentation is loading. Please wait.

LARVAL FEEDING OF THE WESTERN CORN ROOTWORM (DIABROTICA VIRGIFERA VIRGIFERA LECONTE) ON ROOTS OF SEVERAL WEEDS AND ITS EFFECT ON CROP ROTATION József Takács,

Published byTurner Harmer Modified over 9 years ago

Similar presentations

Presentation on theme: "LARVAL FEEDING OF THE WESTERN CORN ROOTWORM (DIABROTICA VIRGIFERA VIRGIFERA LECONTE) ON ROOTS OF SEVERAL WEEDS AND ITS EFFECT ON CROP ROTATION József Takács,"— Presentation transcript:

1 LARVAL FEEDING OF THE WESTERN CORN ROOTWORM (DIABROTICA VIRGIFERA VIRGIFERA LECONTE) ON ROOTS OF SEVERAL WEEDS AND ITS EFFECT ON CROP ROTATION József Takács, Péter Balogh, Miklós Nádasy and Lénárd Márton University of Veszprém, Georgikon Faculty of Agriculture, Department of Agricultural Entomology, Keszthely, Hungary

2 Larval feeding of WCR

3

4 Questions Is it a monophagous pest? Can larvae feed on roots of other plants? Monocot vs. dicot weeds? Mortality on alternative hosts? Is it a monophagous pest? REALLY???

5 Is it a monophagous pest?

6

7

8

9 Dicot weeds

10 Is it monophagous? Really???

11 Danger!?! Developing on alternative roots Development of WCR larvae is not possible on alternative host plants. Mortality is so high! BUT!!!

12 Weeds are suitable for larvae as survival nutriments!

13 Feeding on alternative hosts

14 Summarized Survival nutrition on alternative roots Weedy cornfields! HIGHER SURVIVAL RATIO HIGHER DAMAGES!!!

15 Adult feeding on alternative host plants

16 Problems in fallow management Weeds on fallow fields Oviposition on weedy plots Larval damages in next year corn

17 Crop rotation is one of the most effective control method! REALLY???

18

Download ppt "LARVAL FEEDING OF THE WESTERN CORN ROOTWORM (DIABROTICA VIRGIFERA VIRGIFERA LECONTE) ON ROOTS OF SEVERAL WEEDS AND ITS EFFECT ON CROP ROTATION József Takács,"

Similar presentations

What is Integrated Pest Management (IPM) ?

What is Integrated Pest Management (IPM) ?
LILY LEAF BEETLE RESISTANCE AMONG LILY HYBRIDS Caitlyn MacGlaflin 1, Lisa Tewksbury 1, Dr. Richard Casagrande 1. 1 Department of Plant Sciences, University.

LILY LEAF BEETLE RESISTANCE AMONG LILY HYBRIDS Caitlyn MacGlaflin 1, Lisa Tewksbury 1, Dr. Richard Casagrande 1. 1 Department of Plant Sciences, University.
Control of larvae of the western corn rootworm /WCR/ (Diabrotica virgifera virgifera LeConte, 1868) József, TAKÁCS –Miklós, NÁDASY – Péter, BALOGH University.

Control of larvae of the western corn rootworm /WCR/ (Diabrotica virgifera virgifera LeConte, 1868) József, TAKÁCS –Miklós, NÁDASY – Péter, BALOGH University.
THE EFFECT OF THE WEATHER ON THE LIGHT-TRAP’S DATA OF THE COTTON BOLLWORM IN HUNGARY Péter Balogh, József Takács, Miklós Nádasy, Lénárd Márton University.

THE EFFECT OF THE WEATHER ON THE LIGHT-TRAP’S DATA OF THE COTTON BOLLWORM IN HUNGARY Péter Balogh, József Takács, Miklós Nádasy, Lénárd Márton University.
Susceptibility of the African bollworm, Helicoverpa armigera (Hub.) to endosulfan, chlorpyrifos, carbosulfan and fenpropathrin using different bioassay.

Susceptibility of the African bollworm, Helicoverpa armigera (Hub.) to endosulfan, chlorpyrifos, carbosulfan and fenpropathrin using different bioassay.
1 Economic History Medieval Era (500 – 1400 AD) Feudalism -- Western Europe Second Agricultural Revolution (900 - 1500 AD) Stirrup Horse Collar.

1 Economic History Medieval Era (500 – 1400 AD) Feudalism -- Western Europe Second Agricultural Revolution ( AD) Stirrup Horse Collar.
Western corn rootworm  Eggs hatch mid- to late-May  Small larvae prune root hairs  Large larvae tunnel roots  Heavy feeding will reduce root mass 

Western corn rootworm  Eggs hatch mid- to late-May  Small larvae prune root hairs  Large larvae tunnel roots  Heavy feeding will reduce root mass 
Garden Pests and Beneficial Natural Enemies Dean S. Volenberg Agricultural Educator UW-Extension.

Garden Pests and Beneficial Natural Enemies Dean S. Volenberg Agricultural Educator UW-Extension.
Concept of Pest & Pest Outbreak Dr. Jamba Gyeltshen 19/8/2011.

Concept of Pest & Pest Outbreak Dr. Jamba Gyeltshen 19/8/2011.
 Regions in upstate New York with contrasting corn acreage were identified.  First-year, non-Bt corn fields within regions were surveyed for northern.

 Regions in upstate New York with contrasting corn acreage were identified.  First-year, non-Bt corn fields within regions were surveyed for northern.
Host Preferences of the Colorado Potato Beetle Leptinotarsa Decemlineata Erin M. Hitchner 1, Thomas 2 P. Kuhar, Joseph C. Dickens 3 and Rod Youngman 1.

Host Preferences of the Colorado Potato Beetle Leptinotarsa Decemlineata Erin M. Hitchner 1, Thomas 2 P. Kuhar, Joseph C. Dickens 3 and Rod Youngman 1.
Unit 3: Corn Insect Diseases.  European Corn Borer & Southwestern Corn Borer  Can cause 3% yield loss/corn borer/plant  Sweet corn 8%  Bore  Stalks.

Unit 3: Corn Insect Diseases.  European Corn Borer & Southwestern Corn Borer  Can cause 3% yield loss/corn borer/plant  Sweet corn 8%  Bore  Stalks.
Insect Resistance Management for Corn Rootworm Alan Reynolds, Sharlene Matten, and Tessa Milofsky U.S. EPA/Office of Pesticide Programs, Biopesticides.

Insect Resistance Management for Corn Rootworm Alan Reynolds, Sharlene Matten, and Tessa Milofsky U.S. EPA/Office of Pesticide Programs, Biopesticides.
Corn Rootworm Situation in 2004 Distance Education Workshop February 4 and 11, 2005 Mike Gray and Kevin Steffey Department of Crop Sciences University.

Corn Rootworm Situation in 2004 Distance Education Workshop February 4 and 11, 2005 Mike Gray and Kevin Steffey Department of Crop Sciences University.
Northwest Crops Project Dennis Pittmann, Dennis Roe and Anitra Gorham.

Northwest Crops Project Dennis Pittmann, Dennis Roe and Anitra Gorham.
1 Economic History Medieval Era (500 – 1400 AD) Feudalism -- Western Europe Second Agricultural Revolution (900 - 1500 AD) Stirrup Horse Collar Horse Power.

1 Economic History Medieval Era (500 – 1400 AD) Feudalism -- Western Europe Second Agricultural Revolution ( AD) Stirrup Horse Collar Horse Power.
VIRUS INFECTION OF ORNAMENTAL PLANTS IN HUNGARY József HORVÁTH 1 - Éva BARACSI 1 - András TAKÁCS 2 - Gabriella KAZINCZI 2 - Richard GÁBORJÁNYI 1 - Rita.

VIRUS INFECTION OF ORNAMENTAL PLANTS IN HUNGARY József HORVÁTH 1 - Éva BARACSI 1 - András TAKÁCS 2 - Gabriella KAZINCZI 2 - Richard GÁBORJÁNYI 1 - Rita.
Integrated Pest Management

Integrated Pest Management
Management of Insect Pests of Corn In Western North Carolina John Van Duyn, Entomologist NCSU Cooperative Extension Service John Van Duyn, Entomologist.

Management of Insect Pests of Corn In Western North Carolina John Van Duyn, Entomologist NCSU Cooperative Extension Service John Van Duyn, Entomologist.
Conclusion Materials and methods The tomato leafminer reproduces without a mate New case of parthenogenesis in Lepidoptera R. Caparros ; E. Haubruge and.

Conclusion Materials and methods The tomato leafminer reproduces without a mate New case of parthenogenesis in Lepidoptera R. Caparros ; E. Haubruge and.

Similar presentations

Ads by Google