Winter Wheat Varieties - Ask Extension
I have yellow dwarf virus which has severly affected my wheat crop. Can you provide any wiinter wheat varieties that are resistent to this virus???
Knowledgebase
Winter Wheat Varieties #871502
Asked June 04, 2024, 11:18 AM EDT
I have yellow dwarf virus which has severly affected my wheat crop. Can you provide any wiinter wheat varieties that are resistent to this virus???
Klamath County Oregon
Expert Response
The OSU wheat variety trial program has some data on resistance to this disease. Bobtail is the only variety that was rated moderately resistant. You can find that data on page 7 of the 2023 variety resistance report here:
https://cropandsoil.oregonstate.edu/sites/agscid7/files/crop-soil/2023_disease_oweyt.pdf
If you want to browse more trial data you can find it here:
https://cropandsoil.oregonstate.edu/wheat/variety-trials/2023-oregon-wheat-and-barley-yield-trial-data
Cultural practices are more effective at managing barley yellow dwarf than variety selection. This disease is transmitted by aphids, so focusing on aphid control will help limit the disease. A good seed treatment package and planting after the first frost are the most effective strategies. The PNW insect management handbook has a section on aphid control in small grains that will help:
https://pnwhandbooks.org/insect/agronomic/small-grain/small-grain-aphid
https://cropandsoil.oregonstate.edu/sites/agscid7/files/crop-soil/2023_disease_oweyt.pdf
If you want to browse more trial data you can find it here:
https://cropandsoil.oregonstate.edu/wheat/variety-trials/2023-oregon-wheat-and-barley-yield-trial-data
Cultural practices are more effective at managing barley yellow dwarf than variety selection. This disease is transmitted by aphids, so focusing on aphid control will help limit the disease. A good seed treatment package and planting after the first frost are the most effective strategies. The PNW insect management handbook has a section on aphid control in small grains that will help:
https://pnwhandbooks.org/insect/agronomic/small-grain/small-grain-aphid
