Entries by Agronomy Team

Ear Rots in Corn

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 […]

Stalk rots in corn

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 […]

Managing Fusarium Head Blight at harvest

The less infected kernels that go into storage the better, and the greater of a chance a grower will have for not getting docked to a lower grade of wheat. Combine tips and notes Higher fan speeds are needed to blow infected kernels out the back. Ridgetown College has done studies on fan speeds, and […]

Western Bean Cutworm

Why are they a concern? The western bean cutworm is a damaging pest in corn and dry edible beans. They can cause large yield losses and reduced grain quality. In corn They begin to feed on the tassels and silks until they are large enough to tunnel into the ear and feed extensively on the

Fusarium head blight

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 […]

Critical weed-free period

Weed-free period in corn In corn this period occurs from V1 to V6 (1 to 6 leaf collars). Some sources will mention that it even begins at the VE stage (emergence). During this time the corn crop needs to stay clean. Weeds will affect yield

Early season pests

With the cold winter that we have had, a slow start of insect development may occur. Many of the acres planted in Ontario have been planted with neonicotinoid insecticides. With the current debates over neonicotinoid insecticides, the best strategies to control pests is to start with a good knowledge of crop pests. By understanding early […]

Wheat leaf diseases

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

Micronutrients — more important than you think

Micronutrients are essential to plant growth and aid in achieving yields that growers need. Unlike a macronutrient such as nitrogen, phosphorus and potassium, micronutrients are required by the plant in small amounts, but are equally as important for proper crop growth and yield. The micronutrients that are key to growth include Boron, Copper, Iron, Manganese, […]