M Oley's definitions
Sprench— defined— a greenhouse term to indicate an application of a more generous amount of spray of finished mixed control solution to thoroughly wet foliage, and stems and wet approximately the top inch or two of soil but not a full soaking drench.
Eric Runkle proposes in GPM Magazine in July 2010 that “Sprenches can be delivered using a sprayer or boom mist by applying three or four times the volume of a spray (6 to 8 quarts per 100 square feet) during finish production. During propagation, a sprench may be only twice the volume of a spray given the small media volume. A sprench also can be delivered through the hose as a light watering, where the foliage gets wet and the solution penetrates the surface of the media.
Eric Runkle proposes in GPM Magazine in July 2010 that “Sprenches can be delivered using a sprayer or boom mist by applying three or four times the volume of a spray (6 to 8 quarts per 100 square feet) during finish production. During propagation, a sprench may be only twice the volume of a spray given the small media volume. A sprench also can be delivered through the hose as a light watering, where the foliage gets wet and the solution penetrates the surface of the media.
I'm planning to apply a sprench of a systemic fungicide at the plug stage and then after solid rooting I'll apply a drench of insecticide to control aphids and thrips. After that .... a spray
by M Oley March 15, 2021
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