Updated spore counts are available for the Lower Columbia Basin of Washington:

Ascospores were detected on three out of seven days.

Based on field observations, many cultivars of Kentucky bluegrass and perennial ryegrass are flowering in the Lower Columbia Basin.

Protective fungicides should be applied at the onset of anthesis to protect unfertilized flowers from infection, and cultivars with prolonged flowering periods may require more than one application.

Please refer to the PNW Plant Disease Management Handbook for more information on fungicide options for ergot (https://pnwhandbooks.org/plantdisease/host-disease/grass-seed-ergot), or contact Jeremiah Dung using the “Leave a reply” link above.

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