How to Breed Day Lilies With Oryzalin

Dig up daylilies in preparation to divide the roots. Dividing daylilies is the most reliable way to propagate the plants. Hybrid daylilies will only reproduce true to type from root divisions. Store the dug-up plants in a warm, dry, dark spot while you treat soil with Oryzalin.

Jar test the reaction of oryzalin and a post-emergent herbicide such as glysophate or sethoxydim. Fill a glass jar with the proper ratios of oryzalin and the post-emergent herbicide as indicated by the Oryzalin instructions. Place the lid on the jar and invert it several times. Observe the mixture for 1/2 hour. If the components ball up or form sludges, oily films or gels, the mixtures are not compatible and should not be used in your tank mix sprayer.

Fill your tank 1/3 to 1/4 of the total spray volume with water. Add mixable ingredients in this order: dry flowables, wettable powders, oryzalin, flowables and then water-based solutions.

Insert a sparge tube agitator into the tank to mix the contents. A sparge tube agitator will agitate the contents without adding air that can cause foam. This will help you to use all of the chemical.

Point the wand at the ground and apply the sprayer by pressing the trigger. Spray the ground by walking in a grid pattern and waving the wand in a 90 degree fan.

Divide and replant daylilies after the post-emergent herbicide has dispersed from the soil. For herbicides such as glysophate, this may take two days. Pull or cut the daylily roots in half along a natural division in the roots.

Dig holes for daylilies that are 12 inches deep. Scoop a trowel of compost into the hole and cover with 2 inches of soil. Place the daylily into the soil so that it is 1 inch below the soil surface. Space daylilies between 12 and 18 inches apart.