Corn Earworm
Corn earworm is one of the most challenging pests of sweet corn. The moths are carried on trade winds from… Continue Reading Corn Earworm
Author: Elaine Roddy
Powdery Mildew in Cucurbits
Powdery mildew has also arrived in Ontario. Unlike many fungal pathogens, powdery mildew does not require prolonged leaf-wetness for infection… Continue Reading Powdery Mildew in Cucurbits
Snap Beans in Hot Weather
Daytime temperatures over 30 C and/or nighttime temperatures over 20 C during flowering have a large impact on the snap… Continue Reading Snap Beans in Hot Weather
Bacterial Diseases in Snap Beans
There are three different bacterial diseases in snap beans; brown spot, common blight and halo blight. Under field conditions, it… Continue Reading Bacterial Diseases in Snap Beans
Time to Scout for European Corn Borer
First generation corn borer adults are active in Southwestern Ontario. Scout all fields regularly for signs of activity. Look for… Continue Reading Time to Scout for European Corn Borer
Cucurbit Downy Mildew Confirmed in Kent County
Downy mildew is present in a pickling cucumber field in Kent County. A field scout, funded by the Ontario Cucumber… Continue Reading Cucurbit Downy Mildew Confirmed in Kent County
Cucurbit Downy Mildew Update
Downy mildew activity continues south of the border with a recent confirmation in New Jersey. While NJ is not in… Continue Reading Cucurbit Downy Mildew Update
If you plant it, they will come!
Cucumber beetles seem to be able to sense a newly emerged cucurbit field as soon as it breaks through the… Continue Reading If you plant it, they will come!
Armyworm – on the move?
There have been reports of armyworm activity in wheat fields in SW Ontario, which means it won’t be long before… Continue Reading Armyworm – on the move?
Scout for Cutworm Activity in Sweet Corn
Elaine Roddy, Vegetable Crops Specialist – Ridgetown, OMAFRA Several cutworm species are already active in Ontario fields. The size of… Continue Reading Scout for Cutworm Activity in Sweet Corn