Proudly Canadian

John Greig

Senior Editor

John Greig is a senior editor with Glacier FarmMedia with responsibility for Technology, Livestock and Ontario. He lives on a farm near Ailsa Craig, Ontario. Contact John at [email protected] or follow him on Twitter @jgreig.

Stories by John Greig

Western bean cutworms feeding on an ear of corn in 2011. (Photo courtesy Ohio State University Extension)

Crops

Corn trait’s action on western bean cutworm seen ineffective

By John Greig October 7, 2016

Ontario entomologists have similar concerns to U.S. counterparts who have taken an unusual step by sending an open letter to seed companies about failures in control of western bean cutworm […] Read more

Calves with diarrhea when young are more likely to have respiratory disease later.

Calf health, Dairy

Calf health index creates option to select for diarrhea and respiratory disease resistance

The Canadian index will be included in August 2025 dairy bull proofs

By John Greig March 4, 2025

A new Canadian calf health index will help farmers reduce diarrhea and respiratory disease in calves through breeding.