Tag Archives: weather

Lavender Crop Update – Adjusting to a Warm Spring – May 3, 2024

Posted on May 3, 2024 by Sean Westerveld

The warm weather over the past week has put us about 10 days ahead of normal based on Growing Degree Days in the south (Figure 1). Figure 1. A lavender plant on May 3 in Simcoe showing significant green-up and … Continue reading →

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Ginseng Crop Update – April 26, 2024

Posted on April 26, 2024 by Sean Westerveld

So far this year, 130 growing degree days (GDD) have accumulated at Delhi, which is 7 days ahead of normal. The warm weather over the weekend will accelerate growth and by Tuesday, we will be back to 10-11 days ahead … Continue reading →

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Hot Weather Impact on Plant Water Demand – How Can We Measure?

Posted on July 6, 2022 by Sean Westerveld

By: Rebecca Shortt, Water Quantity Engineer, OMAFRA It has been hot and dry in SW Ontario in June. What is the impact on plants? And how do we measure the water demand? One thing I think we forget is that … Continue reading →

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Collecting Accurate Weather Data for Ginseng Production

Posted on May 25, 2020 by Sean Westerveld

Weather monitoring is important for understanding crop conditions, determining the timing of pesticide application, and deciding whether previous pesticide applications were effective. However, it is important to understand how weather conditions should be monitored so the information is accurate and … Continue reading →

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What to Expect from Herbicides in Cold Weather — ONvegetables

Posted on May 8, 2020 by Sean Westerveld

Kristen Obeid, OMAFRA Weed Management Specialist – Horticulture I’ve been getting a lot of questions on how well certain herbicides will work in our colder than normal weather. There is no question that cold weather will impact post emergent herbicide … Continue reading →

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Ginseng Crop Update May 11, 2018

Posted on May 11, 2018 by Sean Westerveld

Ginseng plants are finally beginning to emerge through the straw. There has been a lot of shade damage in some fields due to the wind storm on May 4. For growers with extensive damage that is not fully repaired yet, … Continue reading →

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