Barley Yellow Dwarf Virus in Winter Wheat
Onion thrips on volunteer onions
Onion thrips are present on volunteer onions that have resprouted from last year's onion fields. Both adult and immature thrips are present.
Volunteer onions can serve as a reservoir for thrips and Iris yellow spot virus to infest nearby onion fields. Control of volunteer onions may help to reduce thrips and Iris yellow spot pressure this season.