This category is used for alerting clients of critical crop management issues that are time sensitive

Spring Frost Damaged Alfalfa

May 14, 2013 • Written by Joel Bagg
Spring Frost Damaged Alfalfa
Alfalfa frost damage can sometimes occur in the spring after growth has started, resulting in damaged growing points. Some wilting can be visible about 24 hours after frost or some yellowish or brownish discolouration 3 or 4 days later. The top of the stems will typically bend over with a “shepher... Continue reading →
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Frost Injury in Corn at the spike stage

May 11, 2013 • Written by Greg Stewart
Frost Injury in Corn at the spike stage
I took this video in 2010 when a lot of corn was planted in mid April and had emerged nicely only to be hit with a frost in May. Although the injury looked bad at the time, because the growing point was below the ground the crop made a complete recovery and 2010 saw record high provincial corn yield... Continue reading →
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Check Alfalfa Stands This Spring and Make A Plan

March 19, 2013 • Written by Joel Bagg
Check Alfalfa Stands This Spring and Make A Plan
Low forage inventories and increasing risk for alfalfa winterkill makes assessing spring alfalfa health essential.Walking fields early this spring to determine if the alfalfa stand has thinned, and assessing if plants are dead or unhealthy is a proactive strategy to determine management options. M... Continue reading →
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Silage Fermentation Problems

November 19, 2012 • Written by Joel Bagg
Silage Fermentation Problems
When we make corn silage and haylage, we are using our skills as microbiologists, just like winemakers, brewers and composters. As a biological system, silage making doesn’t always work perfectly. During an anaerobic silage fermentation, microorganisms feed on sugars and other soluble carbohydrate... Continue reading →
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2012 Grain Corn Ear Mould and Vomitoxin Survey

October 4, 2012 • Written by Greg Stewart
A map of southern Ontario depicting the levels of vomitoxin (DON, PPM) found in 171 grain corn samples collected from September 18 to 25, 2012.
Co-Author: Albert Tenuta, OMAFRA Field Crop Pathologist The annual corn ear mould and vomitoxin survey by the OMAFRA Field Crops team indicates that the 2012 Ontario corn crop is distinctly low in ear moulds and vomitoxin. However, stakeholders are reminded that individual field conditions (environ... Continue reading →
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Silo Gas Alert

September 9, 2012 • Written by Joel Bagg
There is increased potential for high nitrates and therefore silo gas (nitrogen dioxide) in recently harvested corn silage due to the dry growing season this year. Farmers exposed to silo gas are at risk of severe respiratory distress, permanent damage to lungs, and even sudden death. Reports ... Continue reading →
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Potential Nitrate Poisoning and Silo Gas When Using Corn Damaged By Dry Weather For Silage, Green Chop Or Grazing

August 15, 2012 • Written by Joel Bagg
Potential Nitrate Poisoning and Silo Gas When Using Corn Damaged By Dry Weather For Silage, Green Chop Or Grazing
Extended periods of dry weather without rain can severely stress corn plants. When this occurs during tasselling and pollination, cob formation and grain yield can be significantly reduced. As the situation worsens, leaves turn brown and the plants can appear dry and “dead”.  Some farmers attem... Continue reading →
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Frost Damaged Alfalfa

April 13, 2012 • Written by Joel Bagg
There was an early break in alfalfa dormancy in early- to mid-March. In some areas, significant alfalfa growth (up to 6 - 8 inches or more) was frost damaged when colder  temperatures returned on March 30th (-7°C or colder). Damage was most severe in south­-western Ontario, on good healthy stands... Continue reading →
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Management Tips for Dwarf Bunt

July 29, 2011 • Written by Peter Johnson
The following harvest and storage management tips for dwarf bunt infected fields can help increase sample quality: Cut high with the combine Wheat infected with dwarf bunt will be substantially shorter than healthy plants. Raising the header will reduce the amount of bunt balls harvested. Har... Continue reading →
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