What is it? Fusarium Head Blight is a fungal disease that affects the head of small grain crops. Also referred to as Scab, it can affect wheat, barley, oats, rye, corn, and triticale. Wheat and barley are generally the most affected. It is mainly caused by the species Fusarium graminearum, and can cause loss of […]
What is it?
Gibberella Ear Rot, or Red Ear Rot, is caused by the fungus, Gibberella zeae (Fusarium graminearum). This disease can occur throughout the U.S. Mid-West and Southern Ontario. The pathogen overwinters on corn, wheat and barley debris. Spores produced on the debris lead to infection during silking. Red Ear Rot is more prevalent when cool, wet weather occurs during the first 21 days after silking. Extended periods of rain in the fall, which delay dry down, increase the severity of the disease. Red Ear Rot will be most severe in fields where corn follows corn, or corn follows wheat that was affected by Fusarium head blight (scab), which is caused by the same pathogen. Read more
Ear rots can be difficult to control since weather conditions are critical to the disease development. Rots can establish any time after pollination in wounds created by insects, birds, machinery, and even hail. Rainy weather or heavy, prolonged dews often lead to ear rots in these wounded cobs.
Why are rots a concern?
The direct concern for ear rot disease is yield loss due to poor quality grain. In years when conditions favour development, large portions of fields can be affected. Once fields are infected, other management practices should be followed which can increase cost of harvesting, drying, and storing the grain.
The distribution and prevalence of stalk rot diseases vary from year to year. However, the diseases are present in most years even though it may be at low levels. The majority of stalk rot damage in Ontario is caused by three fungi, Anthracnose, Gibberella and Fusarium. However, Diplodia and Pythium have also been observed.
Although these fungi cause different symptoms, their ultimate effect on the corn plant is the same. They reduce grain fill, stalk integrity, and accelerate senescence. The severity of this damage increases when the crop is under stress.
What increases the risk of infection?
- Cool temperatures.
- Prolonged periods of wet weather.
- Rust problems in the southern US states and Mexico could mean the same for Ontario as storm systems carry the spores north.
- Planting susceptible varieties.Planting after another cereal or corn crop.
How do I know when to apply a fungicide?
The higher the price of wheat, the more economical treatment is. In general, if trace amounts of rust, powdery mildew, or leaf spot are Read more
To be leaders in the food and agribusiness sector through sustainability, integrity, relationships, employee engagement, profitability and innovation.
- RT @Cornbroker21: Crop Progress and Conditions Report as of 10-10-2019 #Corn Harvest at 66% vs. 85% the average. #Soybean Harvest at 85% v…6 hours ago
- RT @Cornbroker21: FLASH: #USDA WASDE REPORT RESULTS: 11-8-2019 #Corn #Soybeans #Wheat #Sorghum #Cotton Corn Yield Down 1.4 BPA to 167, Soy…4 days ago
- I know there's worse out there this morning, but this is early for the Banana Belt! #beansnotdone https://t.co/8pJGFoHq8U5 days ago
- Thompsons–Pain Court location Friday, September 27, 2019. Drop-off for Unwanted Pesticides and Livestock/Equine Med… https://t.co/ew13gfFo3057 days ago
- RT @DressageAmanda1: Transitional @ThompsonOrganic soybeans looking fantastic! B138CO. @ThompsonsAg @BrevantSeedsCA https://t.co/e1886OtDwr64 days ago
- RT @DressageAmanda1: Reminder of @NorwichBranch @ThompsonOrganic Producer Soybean Grader Overview Wed. Sept 11th. 10AM-11AM. Please RSVP…65 days ago
- Driving safety: an accident is likely to occur 23 more times with cell phone useSeptember 9, 2019 - 9:37 am
- CleanFarmsThompsons Pain Court hosts CleanFarms September 27, 2019August 27, 2019 - 12:00 pm
- Sylvite purchases Thompsons’ agronomy business from The Andersons Inc.August 7, 2019 - 1:09 pm
- Safety: Be aware of your surroundingsJuly 18, 2019 - 10:41 am
- Safety: pressure washer safetyJuly 4, 2019 - 4:14 pm
- Cover crop options for unseeded fieldsJuly 3, 2019 - 10:30 am
- Local rice? Experimental farm showcases crop in Chatham-KentJuly 2, 2019 - 4:11 pm