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Jerry from Bethel Springs,tn. writes

How long does Ferti-lome Liquid Systemic Fungicide II take to eliminate black spot on Brindabella roses? This will be used in nursery where the roses are facing south.


For black spot on roses, you should start seeing results within a few days, but you can repeat applications of Ferti-lome Liquid Systemic Fungicide II every 10 days as needed. Be sure to allow the product to dry completely before watering. Per the product label, this product may not provide 100% control of severe black spot infestations.

Answer last updated on: 05/18/2021

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