From stagonospora curtisiae helps me with benlate

solution. I spray the plant with it once.

What is the active ingredient in what you bought? I have used foliar systemics effectively. I used to have an out of control red blotch problem. Copper octanoate did nothing, hot water treatment worked like 50% of the time but it would keep coming back. I started spraying with thiomyl, a foliar systemic. I bought it on Amazon and mixed 1 tsp powder in 1 gal of water. It is 50% clay, so it will not fully dissolve, which is normal. I just shake well before and occasionally throughout use. I sprayed every two weeks, every bit of surface of the plant I could reach. Both sides of the leaves, the sides of the neck, the sides of the bulb itself, everything, and I did it to every single bulb, infected or not. I removed portions of leaves that were severely affected using scissors sterilized with isopropanol, and coated the cut areas with cinnamon powder. I left parts of the neck or outside alone that were infected alone. I don’t know why, but the infection stopped spreading on the bulb and neck when I started spraying. It did continue on the leaves, so I kept removing infected leaf portions. After about two months I had totally eradicated the red blotch from my collection. I am not sure whether this can be done indefinitely to the leaves, but I have yet to see any toxicity. I have not tried benlate, but I have heard of several people using it and I am considering alternating the two to prevent resistance to either chemical developing over time.

if you catch the problem early enough, it is not difficult to save the bulb. I don’t know if anyone has had luck bringing one back that had a severe case or the inside infected. As a last resort you could do a fungicidal dip, but I haven’t tried it before.

The active ingredients are all concentranced essential oils. Rosemary oil, clove oil, and peppermint oil, it said.

I keep my hippeastrums in my room and I have a dog, so I was very anxious about anything potentially toxic that could linger.

The package and website said the product was effective against "leaf blotch", but I don't know for sure if it was the same as red blotch, since no scientific name was given.

Also, the Minerva bulb itself seems to have no infection--I uprooted the whole cluster, and put them into their own pots. The Minerva has these red splotches at the tips of two of its four leaves. One of my small no-name bulbs seems to have red blotch in its roots, though, because most of them had rotted off, and the few that were left were shriveled and tiny.

I sprayed EVERYTHING down with the foliar fungicide. Leaves, top and bottom, the cleaned bulbs, the roots...I wanted to be safe. Hopefully the product actally works, though...