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Thelma from Lake Charles, La writes

What is the mix rate of Banrot WP Fungicide to treat red blotch on amaryllises? Can this be applied using a sprayer? Treating 75 plants total, mostly in pots but some are in the soil.


Banrot WP Fungicide is for use only in commercial greenhouses for plants and diseases listed on the product label, and does not list red blotch disease. This is not recommended for use on bulbs or in home potted plants. 

Unfortunately, we do not have any fungicides that are labeled for this disease. Typically, you will need to destroy badly infested bulbs, and be sure that you do not provide too much overhead irrigation, use sterilized potting soil, and provide overall good growing conditions for these plants. This article from the FL Extension has great information about overall care for these plants. This is another article with more tips on caring for amaryllis.

Answer last updated on: 04/27/2021

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