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Category: Diseases
Disease Management in Winter and Spring Cereal Crops
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. […]
Managing Fusarium Head Blight in the 2019 Winter Wheat Crop
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 […]
DON in corn silage
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. […]
Laboratories Offering Mycotoxin Analysis in Ontario
Laboratories Offering Mycotoxin Analysis in Ontario Lab & Address Toxins * Cost per sample **** Turn Around Time ***** A&L Canada Laboratories Inc. 2136 Jetstream Rd. London, Ontario N5V 3P5Tel: 519-457-2575 Elisa DON by LCMS/MS $25.65/toxin/sample; 2 days $76.90; 3-5 days 3 – 5 days Actlabs Agriculture 41 Bittern Street Ancaster, Ontario L9G 4V5 Tel: […]
Good Mycotoxin Test Begins With A “Representative” Sample!
Good Mycotoxin Test Begins With A “Representative” Sample! The importance of collecting a “representative” sample cannot be overestimated. The most significant variable associated with mycotoxin test results comes from incorrect sample collection or uneven distribution of infected kernels in load (Figure 1). Although taking a sample from the top of a storage bin, truck or […]
2018 Grain Corn Ear Mould and Vomitoxin (DON) Survey
Co-authored with Albert Tenuta, Field Crop Pathologist, OMAFRA OMAFRA field crop staff in collaboration with the Grain Farmers of Ontario (GFO) and members of the Ontario Agri-Business Association (OABA) have completed the annual Provincial corn ear mould and mycotoxin survey. Corn ear moulds such as Gibberella and their corresponding mycotoxins occur every year in Ontario. […]
2017 Grain Corn Ear Mould and Vomitoxin (DON) Survey
Co-Authored with Albert Tenuta, Field Crop Pathologist, OMAFRA OMAFRA field crop staff with the assistance from members of the Ontario Agri-Business Association (OABA) have completed the annual Provincial corn ear mould and mycotoxin survey. These mycotoxins, particularly vomitoxin (DON) produced primarily by Gibberella/Fusarium ear moulds can be disruptive when fed to livestock, especially hogs. The […]
Wheat Fungicide Decision Tree for Fusarium Head Blight and Stripe Rust
The when, what and where of wheat leaf and Fusarium head blight (head scab) disease management Martin Chilvers and Martin Nagelkirk, Michigan State University; Albert Tenuta, OMAFRA; Damon Smith, University of Wisconsin-Madison; Kiersten Wise, Purdue University; Pierce Paul, The Ohio State University Wheat leaf diseases such as powdery mildew, Septoria leaf spot and stripe rust […]
2016 Grain Corn Ear Mould and Vomitoxin (DON) Survey
Co-Authored with Albert Tenuta The OMAFRA Field Crops team conducted its annual vomitoxin survey to assess the presence of corn ear mould and grain vomitoxin in the 2016 corn crop. Vomitoxins can be produced by Gibberella and Fusarium ear moulds and can be disruptive when fed to livestock, particularly hogs. A total of 121 samples […]
Soybean Disease Identification Resources
The following scouting guides for disease identification in soybean are available for download by clicking on the headings below. Scouting for common soybean seed diseases Scouting for common soybean stem diseases Soybean vein necrosis virus Charcoal Rot White Mould Stem Canker Pod and Stem Blight and Phomopsis Seed Decay Soybean seedling diseases and disorders Scouting […]
2016-2017 Field Crop Protection Guide
The 2016-2017 version of OMAFRA Publication 812, Field Crop Protection Guide, and can be downloaded here or by clicking on the the book cover thumbnail below. Publication 812 is the source of pest control information for field crops. The easy to read tables provide information and comments on insect and disease control products for the major field crops […]
Identifying Rust Diseases of Wheat and Barley Publication
Stripe rust symptoms are increasing in the southwest this week and the following publication “Identifying Rust Diseases in Ontario” is a good resource to distinguish between stripe, leaf and stem rust. This publication was developed by the multi-state and OMAFRA extension and research committees for small grain diseases, NCERA-184 & WERA-97 with support from the Grain […]
Integrated Fusarium head blight management: Employing all the tools
Fusarium head blight continues to be of significant economic concern in Ontario as well as other provinces. Although new tools have helped, it is not realistic to expect a single cultural or management practice to effectively manage this devastating disease alone. The integration of the various cultural or management practices (“tools”) into a coordinated FHB […]
2014 Grain Corn Ear Mould and Vomitoxin Survey
Greg Stewart, OMAFRA Corn Specialist Albert Tenuta, OMAFRA Field Crop Pathologist The OMAFRA Field Crops team has completed the survey of the 2014 Ontario corn crop to determine ear mould incidence and the occurrence of mycotoxins in the grain. These mycotoxins, particularly vomitoxin (DON) produced primarily by Gibberella/Fusarium ear moulds, are grading factors and can […]