June 23, 2017

Dan Drost – Utah State Commentary – Onion ipmPIPE

Utah%20Commentary%206-19

 

Utah Commentary

Onion Crop Growth Stage and Status Last Modified: 06/19/13

Plant growth considered normal with plants in the 6-7 leaf stage. Growers happy with growth so far and many are beginning to think about thrips sprays as pest numbers increase. Transplanted onions (limited acreage) more advanced and early bulbing occurring (swelling noted).

 

Weather Impacts (temperature, rain, hail, freezing) Last Modified: 06/19/13

The northern Utah weather has been normal to above normal for early June. Average daily temperatures in mid to upper 80’s. No rain reported in last two weeks. Soils moisture considered good and growers are busy irrigating crop. Projected hot dry summer and most irrigation companies indicate that water shortages are likely. No weather related problems to report.

 

Insect Scouting, Outlook and Management Last Modified: 06/19/13

Thrips

Field surveys on-going with most fields having some thrips. Thrips populations still low in most fields with counts of >1 adult per plant and 1-3 larvae per plant.

Maggots

None reported at this time

Other

None reported at this time

 

Disease Scouting, Outlook and Management Last Modified: 06/19/13

Iris yellow spot virus

None reported at this time

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

None reported at this time

Fungal Diseases (purple blotch, downy mildew, Botrytis)

None reported at this time

Bacterial Diseases (Xanthomonas, center rot, soft rots)

None reported at this time

Onion Specialist Daniel Drost Professor of Horticulture Utah State University Email: dan.drost@usu.edu