FieldTalk

Glyphosate & Ammonium Sulphate

Jean-François Foley
It is sometimes difficult to control certain weeds, even with glyphosate. What can explain the low effectiveness of glyphosate?  Often the cause is too late application. Two problematic weeds at this level are lambsquarters and velvetleaf.          REASON: These 2 weeds have a high calcium content, which may

Darksided Cutworm

Jean-François Foley
As seen during visits in June 2021. This insect was reported in eastern Quebec last year and was detected in several new areas this spring, including Nicolet.  The adult moth was able to lay its eggs last fall, and the mild winter may have contributed to the survival of the eggs.  Young larvae attack the foliage of several plants

Rootless Corn Syndrome

Jean-François Foley
This syndrome occurs in young corn plants and is attributed to limited or simply absent development of the nodal roots.  Various factors are involved:  1. Shallow planting Seed MUST be sown to a MINIMUM depth of 1.5 inches to ensure that nodal roots grow 3/4 inch below the soil surface. Excessive or absent moisture will cause the death

Staging Corn Plants

Sara Meidlinger
Staging corn plants correctly is essential for understanding and assessing crop development. Your staging method will also affect when you make herbicide, fungicide, and fertility applications and recommendations. It is also important to know the difference between the methods as different companies use different methods to make application

Corn Growth Stages - Reproductive Stages / Grain Fill

Corn growth stages are divided into two – vegetative growth and reproductive growth. Vegetative growth begins with emergence and ends with tassel emergence. Reproductive growth begins quickly after tassel emergence and ends with physiological maturity. This newsletter will focus on the six stages of reproductive growth/ grain fill (R1

Tar Spot

Matt Chapple
By now many have heard the crop losses associated with the corn disease Tar Spot. The complex disease is made up of two fungal pathogens: Phyllachora maydis and Monographella maydis. 

Soybean Population x Fungicide

Matt Chapple
The purpose of this project was to demonstrate varietal response to population and genetic response to fungicide application and to determine if ROI increases when populations are increased and a fungicide is applied.

Corn Rootworm Monitoring

Matt Chapple

Bt resistant CRW has resulted in measurable yield loss and has triggered an urgent call for farmers to implement management strategies regarding the utilization of Bt proteins. 

Hybrid x Population x Management Response Trial

Neil McGregor
Corn yield is effected at different stages throughout the growing season. Plant population is determined at planting, then ears per plant, kernels per row per ear, kernel length and kernel weight are determined throughout the growing season based on growing conditions and management.

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