Seeking help with fusarium treatment

[Leafmite]

Use a systemic fungicide with copper if you are certain that it has it. That is the only true way to get rid of a systemic infection.

Clearys 3336F Fungicide is one example.

I see that you've already cut. Perhaps that is enough if that is what they suggest on the site.

[Orchid Whisperer]

Originally Posted by chickazilla

Hello experienced and wise orchid growers! I am sending out an SOS for help with treating one of my orchids with fusarium - the Myrmecatavola Frances Fox, which I absolutely love. In the process of repotting, I checked it for fusarium b/c she was showing signs of weakness, poor root growth and black marks on new roots, etc... She is indeed infected. I read an article which advises that you keep cutting into the rhizome until you don't see the purple ring, before repotting, but I fear I would be down to only two pseudobulbs.

I'm so conflicted about keeping the four pseudobulbs or do as advised and keep cutting until I land on a healthy rhizome patch! My plan is to do foliar treatments with thiomyl. I would appreciate any words of wisdom. Thank you.

The best thing you can do to avoid problems with Fusarium is to stop watching "Miss Orchid Girl" videos on YouTube.

Seriously.

Every imagined case of Fusarium I have heard of "appeared" after watching her videos. I have seen some of these, where she has determined that lushly- growing, or even spiking or blooming plants, have Fusarium. This is not possible.

Your photos are pretty low-resolution and small, but I don't see the characteristics (leaf withering, etc.) that the pictures on the St. Augusting OS exhibit.

If you have ever seen Fusarium for real, the plant looks it has been grown under hot, dry conditions for months. Your plant does not look at all like a Fusarium victim. If the plant is not withered, I would not do the cutting test.

I live in the hot and humid southern USA (Georgia). In 36 years, I have had real Fusarium exactly once. After some cutting, I saved (and still have) that plant.

Your plant has some root loss. Repot into a new pot, preferably terracotta, with a well-drained medium like coarse bark. To promote good root growth, allow the medium to dry in betweeen watering. Your next new growth should produce new roots which will thrive in that environment.

[albi]

this is Fusarium but the plant seems good and can live with the infection ...use one of the new fungizides like Banrot
all my plants are infected with fusarium because of the USA..no joke

[Ray]

Try regular treatments with Inocucor Garden Solution as a curative/preventive instead of using a synthetic fungicide once the damage is progressing.

The Inocucor product (the company has been renamed Concentric Ag, but there have been no label changes as of yet) consists of live beneficial bacteria and fungi that predate pathogens and "beef up" the plant as well, by providing stuff like amino acids, vitamins, etc., that fertilizers don't.

It is available through Amazon.com, but if you order it directly through me, it is on sale (through today only) and shipping is free.

[albi]

i am sad to write that : i live in Colombia
and in a region of Banana and coffeefarms ...everything is infected with fusarium oxyspora ,the fungus infects nearly all plants ,also all orchids in the nature are sick and a lot is dying ,only the plants from the cold parts are more or less healthy
3 years ago i lost 90% of my orchids ,so there is no other way than to use the strongest fungizides you can buy .
i can easly post some fotos of the infection
my problem was that i didnt know that orchids can be infected ...thanks to the US orchid pages I found out what kind of infection my plants have
sorry for my bad english but it also like spanish not my language