There are a few pests to keep an eye on over the next few weeks. Western Bean Cutworm We likely reached peak moth flight either last week for most of the southern counties or this week for the rest of the province, except Northern Ontario, based on the Degree Day Prediction Model and trap counts […]
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Corn Diseases, Fungicide Timing, Fungicide Resistance and Nematode Surveys! Corn diseases such as tar spot, northern corn leaf blight, common rust, gray leaf spot are easy to spot this year especially in areas which have had considerable rain events. The good news is the incidence and severity has still been low as many corn fields […]
Corn Pests to Watch for Over the Next Month Tracey Baute, Entomologist – Field Crops, OMAFA Corn Rootworm Like many other pests, corn rootworm (CRW) is ahead of schedule this year. Adult beetles will be emerging this week or next. Anyone considering trapping for adults as part of the Corn Rootworm Trap Network should be […]
Key Points: What Causes Fires? The process of forage heating up and then burning is typically called spontaneous combustion. Spontaneous combustion for hay usually occurs within the first two months of storage. Unusual growing conditions, such as an early harvest window or immature crop, can complicate the drying process and increase the risk of fire. […]
Rain 360© unit applies watery manure to a standing crop of corn (Photo source from Glen Arnold-OSU). […]
Nodulation and Nitrogen Use in Dry Beans In late June, adzuki beans that had been in the ground for 3 weeks already had a few nodules on the roots (Figure 1), and the nodules were active (pink inside when split open). Another field of adzuki planted in the same region around the same time did […]
No-till corn planted into wheat stubble. Photo taken June 25, 2024 near Warkworth in Northumberland County. […]
This article was originally written by Joel Bagg in 2012. It was edited June 27, 2023 by Christine O’Reilly to reflect current insecticide options to control potato leafhopper and the cessation of third-party alfalfa variety trials in Ontario. Potato leafhopper (PLH) is the most damaging alfalfa insect pest in Ontario in most years. While the […]
Co-authored with Albert Tenuta, Pathologist, Field Crops and Peter Johnson, Agronomist, RealAgriculture Fusarium Head Blight Management Managing Fusarium head blight (FHB), also known as scab, in wheat is crucial to prevent yield loss, reduce mycotoxin contamination and maximize grain quality. Identification Fusarium Head Blight (FHB) symptoms are noticeable soon after flowering. Diseased spikelets (glumes and […]
Winter canola harvest will be happening soon in the southern counties of Ontario. Some producers and the researchers at AAFC Harrow have already applied a pre-harvest herbicide last week. Here are some resources on staging the crop for harvest. Resources from Canola Council of Canada and Kansas State U have been used to develop this […]
Seedling waterhemp at the 2 to10 leaf stage in 6 leaf corn. Control must be prioritized since herbicide effectiveness will be reduced as this weed gets bigger. […]
Reproductive 10% flowering 10% flowering is when 10 flowers are open on the main stem. Flowering begins on the main stem, with the lowest buds opening first and flowering continuing upward. Three or more flowers open per day. At first flower the stem is 30-60% of its maximum height. Management: Monitor for cabbage seedpod weevil […]
Vegetative/Reproductive Overwintering Growth resumes when average temperatures reach 5°C but will be slow until it is consistently warm. Leaves may have rotted off or be discoloured but the centre of the rosette should be green. Determine the population of healthy plants. 5 plants/ft2 or more is ideal. 3-4 plants/ft2 is acceptable. 1-2 plants/ft2 can be […]
Vegetative Emergence The hypocotyl pulls the cotyledons above the soil surface. The growing point is exposed between the two cotyledons. Management: Fertilizer in the seed row can injure seedlings, especially nitrogen and potassium. Apply up to 1/4 of total nutrient requirements pre-plant. Seed 0.5-1 inches deep, or a maximum of 1.5 inches into moisture. Broadcast […]