Weekly in-season progress reports of the Ontario field crop landscape
Nutrient Deficiencies in Soybeans Leaf yellowing and slow growth is evident in many fields. Stressful growing conditions will amplify nutrient deficiency symptoms, insect feeding, and disease symptoms. When plants are already stressed it’s even more important to manage deficiencies wherever possible. Fortunately, weather conditions over the next four to six weeks are more crucial to […]
Western Bean Cutworm Western bean cutworm (WBC) traps have been set on corn and dry edible bean fields across southern Ontario, and low numbers of moths are being caught. Traps are used to monitor moth activity (Figure 1.) and indicate when scouting is required, and are not intended to determine when to spray insecticide. Up […]
Diagnosing Early Season Soybean Diseases In Ontario, soybean seedling diseases and root rots are the second most important yield limiting diseases (Figure 1.) and this year is no different. Cool soil temperatures along with early rains in parts of Essex and Niagara resulted in a large number of soybean fields needing to be replanted and […]
Nitrogen Rate Decisions for Corn Split nitrogen applications in corn not only minimize risk of loss, but can also provide an opportunity to adjust rates based on rainfall, which is a key factor in corn response to nitrogen from year to year. Use decision support tools to help with your rate decision and don’t underestimate […]
Cereals A large majority of the winter wheat crop has progressed beyond the post-flowering stage, and spraying for Fusarium Head Blight protection has been completed in many regions. Stripe rust is reported to be advancing in some areas in fields that did not receive a fungicide application. Significant yield loss can occur in cases where […]
Cereals: Current weather conditions are ideal for fusarium head blight development in winter wheat. Many wheat fields in Southwestern Ontario have applied a T3 fungicide to reduce their risk particularly if they are growing a FHB susceptible variety. T3 fungicide applications further east will begin this week and continuing into next week for Eastern Ontario. […]
Cereals: Winter wheat growth stages are relatively normal at this point in the season; the crop may have looked a bit ahead in weeks past but conditions have been relatively cool. Wheat is in head throughout Southwestern Ontario and beginning to head in western/central Ontario. Some winter wheat fields are looking yellow, even where nitrogen […]
Winter Wheat: Winter wheat is progressing well across the province. The winter wheat is mainly at early flag leaf (Zadok’s 37) to the swollen boot stage (Zadok’s 45-47), and some heading has been observed in Essex County. Disease pressure across the province is currently low, and fungicide applications are expected to start in the next […]
By: THE OMAFRA FIELD CROP TEAM Winter Wheat: Early planted winter wheat continues to look better than Thanksgiving wheat. The cool, wet weather has slowed the rate of wheat development to 5 to 7 days ahead of normal. Most of the crop is at the flag leaf stage, however crop development ranges from 1st node […]
Winter Wheat: The winter wheat crop continues to grow well. The cool temperatures have slowed growth a little. The frost on the mornings of May 8 and 9 appear to have had little impact on the crop other than some minor damage to leaf tips. Fortunately, the wheat was not in head. Some fields […]
Winter Wheat: The wheat crop continues to grow rapidly in the cool moist conditions and is 5-10 days ahead of normal in general. Following up on last week’s report, by the time sprayers are able to be back in the field, the weed stage and competition from the crop canopy will likely negate herbicide use […]
Winter Wheat: Although progress has been made on nitrogen applications, the rainfall has delayed this operation in some parts of the province. The wheat is roughly 1 week ahead of long term average development. Some winter wheat is at the 1st node stage putting it past the optimal weed control timing window (Figure 1). The […]
Winter Wheat: The winter wheat crop looks excellent throughout much of the province. There is lots of growth with excellent yield potential. This lush growth will increase the risk of foliar leaf diseases like powdery mildew (Figure 1) and Septoria (Figure 2) especially in susceptible varieties; regular scouting will detect early infection and allow for […]
Spring Cool but dry conditions prevailed for the start of the corn growing season as May transitioned from a cooler than average April. May remained dry, with few precipitation events to delay planting. A few localized pockets in Southern Ontario were the exception, which received regular rainfall during the first half of the month. Planting […]
Planting and Development Dry edible bean acres were lower in 2016 than they were in 2015. The total number of insured acres of white beans in 2016 was 46,194 acres, a significant reduction from the 62,693 acres planted in 2015. Coloured bean acres totaled 60,668 acres in 2016 compared to 71,855 acres in 2015. Acreage […]