Co-authored with Albert Tenuta, Field Crop Pathologist, OMAFRA. OMAFRA field crop specialists in collaboration with Grain Farmers of Ontario (GFO) and members of the Ontario Agri-Business Association (OABA) have completed the annual Ontario corn ear mould and DON mycotoxin survey. Corn ear moulds such as Gibberella and their corresponding mycotoxins occur every year in Ontario. […]
This article was written by Horst Bohner, OMAFRA Soybean Specialist, and Albert Tenuta, OMAFRA FIeld Crop Pathologist Phytophthora root rot (PRR) is one of the most destructive soybean diseases in Ontario. PRR thrives in wet soils, so the incidence of this disease is more prevalent in fields that received excess rainfall in 2021. Clay soils, […]
The incidence and severity of white mould (Sclerotinia sclerotiorum) is highly dependent on favourable weather conditions for the disease during soybean flowering. White mould prefers temperatures below 28 degrees C, moist soils, and high humidity. Conditions over the last few weeks have been ideal for the disease in much of Ontario. It’s important to know […]
With warmer temperatures wheat has really progressed across the province. Fields in southern Ontario are beginning to head out while fields further east and north are at or approaching flag leaf emergence. That being said, all herbicide applications should be wrapped up in those fields that are at or approaching flag leaf. Disease should be […]
Co-authored with Albert Tenuta, Field Crop Pathologist, OMAFRA OMAFRA field crop specialists in collaboration with Grain Farmers of Ontario (GFO) and members of the Ontario Agri-Business Association (OABA) have completed the annual Ontario corn ear mould and DON mycotoxin survey. Corn ear moulds such as Gibberella and their corresponding mycotoxins occur every year in Ontario. […]
This week we would like to discuss tar spot in corn as well as soybean cyst nematode and sudden death syndrome in soybean. Tar Spot in Corn There is a lot of discussion and questions surrounding tar spot this year in Ontario. Tar spot is a new corn disease in the US midwest and since […]
Angled sprays […]
As I write this article the disease pressure in cereals has been quite minimal to date due to the cool conditions cereals have experienced so far. However, as temperatures begin to rise and canopies get thicker producers should be on the lookout for those important cereal diseases in both your winter and spring cereal crops. […]
Fall Means – Sampling for Soybean Cyst Nematode! As fall approaches, two things are certain – winter will come and soybean cyst nematode (SCN) has done its business! For many growers, managing soybean cyst nematode means planting SCN resistance varieties BUT effective SCN management does not end when you have selected your soybean varieties! It […]
Winter Wheat Winter wheat harvest is winding down across the province and reported yields to date have ranged from 80-130 bu/ac which compares well to the five-year average yield of 82.7 bushels/ac. This was a pleasant surprise for many growers’ considering all the stresses the winter wheat crop had to endure. Good reports of straw […]
The 2019 growing season has been a challenge for the winter wheat crop to say the least! While many winter wheat fields have been removed, a significant amount of stands remain and are being kept through to harvest. Given the wet conditions so far this spring and as we approach heading in many areas, it […]
Planting progress remains slow for all crops, and spray applications have also been significantly delayed by poor weather. Temperatures forecasted for early June are relatively cool, remaining around or below the 20°C mark in many regions. Corn Corn planting progress at the end of May was estimated to be less than 50% complete. In some […]
In properly ensiled corn silage, research has not shown an increase in mycotoxins from levels in the crop at harvest. Fusarium species, the fungi that produce DON, do not like low oxygen, low pH environments, so if corn goes through the proper ensiling process fusarium should no longer be active and able to produce DON. […]
While growers are encouraged to find all avenues possible to clean or market their corn, with elevated ear moulds in the 2018 Ontario corn crop, there may be fields with DON levels that render the crop unmarketable. These fields will require destruction in preparation for the 2019 crop season. Destroying a corn crop at harvest […]
End Uses for Mouldy Corn in 2018 Harvesting is of course the preferred option but for some producers finding a market for mouldy or corn with high levels of DON content can be difficult this year as well as it takes time to find alternative uses or streams for this corn. Livestock producers, especially those […]