June 23, 2017

Dan Drost – Utah State Commentary – Onion ipmPIPE

Utah Commentary 5-13

 

Utah Commentary

Onion Crop Growth Stage and Status Last Modified: 05/13/13

Field conditions have been dry during the last two weeks and growers have begun irrigation to improve soil moisture levels. Plant growth a bit slow due to cool temperatures and dry soils and growers waiting to put on first herbicides for weed management. Overall onion stands are considered good to excellent. Fields in the 1-2 leaf stage. Some frost damage noted on leaves.

Weather Impacts (temperature, rain, hail, freezing) Last Modified: 05/13/13

The northern Utah has been cold-cool during early May and forecasts are for very hot for next week. Less than 1/2 inch rain occurred during the last two weeks. Soils moisture considered low and growers have begun irrigation to encourage early growth.

Insect Scouting, Outlook and Management Last Modified: 05/13/13

Thrips

No surveys or reports at this time

Maggots

No surveys or reports at this time

Other

No surveys or reports at this time

Disease Scouting, Outlook and Management Last Modified: 05/13/13

Iris yellow spot virus

No surveys or reports at this time

Soil-borne Diseases (Damping Off, Pink Root, Fusarium)

No surveys or reports at this time

Fungal Diseases (purple blotch, downy mildew, Botrytis)

No surveys or reports at this time

Bacterial Diseases (Xanthomonas, center rot, soft rots)

No surveys or reports at this time Onion Specialist Daniel Drost Professor of Horticulture Utah State University Email: dan.drost@usu.edu