Ferti-Lome intoduced this spray as a Tree and Shrub spray. It is a systemic which means it soaks into the plant. While it is not specifically noted as a iris spray, it is being widely used for borer control in irises. It is mixed 4 tablespoons to the gallon. Application is by mixing in a sprayer or mixed in water and used as a drench. We reccommend applying it once a week for 3 weeks in the early spring as temperatures reach 60 degrees.
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Comanche Acres Iris Garden
12421 SE State Route 116 . Gower, MO 64454
Jim's Cell Phone-816-889-8829-May not always be answered.