Top Crop Manager

Features Agronomy Pulses
Pulse plant growth stages for proper herbicide timing

Sherrilyn Phelps, agronomy and seed program manager with the Saskatchewan Pulse Growers, says herbicides and fungicides are safe and most effective when applied at appropriate growth stages. In order to make informed decisions on whether the crop or weed is at the right stage to spray, growers must understand the structures of the plants and how they develop.

Vegetative stages are defined by the number of leaves produced on the main stem and the number of tillers on a plant (cereals and annual grasses), or number of nodes on a plant (broadleaf plants). Leaf stages are defined by the number of leaves on the main stem only. A leaf is counted as complete when it is at least one-half the length of the leaf below it.

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June 1, 2015
By Top Crop Manager

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