Hibiscus Problems: The expert answers on Hibiscus diseases

Hibiscus Problems: The expert answers on Hibiscus diseases

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First of all I introduce myself; My name is Imperio, I am in Rome and in the apartment where I live I have a terrace on the top floor of the building facing all the West.In June I bought two Hibiscus SyrYacus, one white and one pink

Until August everything went well watering abundant soil always moist plant with flowers, no fertilizer, same pot of the nursery. (I did not know the fertilizer was needed) I changed position on the terrace, that is from a more sheltered position to a more central position on the terrace and detached from the protection of other plants or walls, in short, to master the center of the terrace and saw that there were ants I gave an ant product to the earth of the pot 2 times in 15 days. Then, seeing that I had some oleander plants with problems, they advised me to treat the oleanders with fenix and fenicrit mixed then I saw that the prepared product was left over and I also gave it to the hibiscus "so much that can happen?" then after two days I did the same thing thinking I was doing well.

However, the plant from August to now has gone to a complete degradation, although from September I fertilized with ace of clubs respecting the instructions, "this time", I changed the pot with a 10 cm larger one, however, in mid-September some flowers the rose the white less did it.

The leaves are almost all yellow with bites that look like mites in transparency there are round yellow spots and in any case I send the photos I hope you can help me.

See you soon and above all Thanks


Hi Imperio, I was speechless when I read your email. I don't often read so many disasters all at once.

First of all let me understand one thing: what has your oleander done to you that it does not deserve a minimum of attention so as to find out what it is affected by? You mixed Fenitrix (a fungicide) with Fenix ​​(which incorporates two active ingredients: an insecticide and an acaricide) but to cure what? Who recommended it told you what the hell of a disease your oleander has? Do you have a bug attack? Which? A mushroom attack? Which? Do you have a mite attack? Which? You can't do such a thing! You can't cure a plant for something you know absolutely nothing about.

You made a great mess!

To this poor hibiscus, in addition to giving him the explosive mixture of oleander, you also gave him a product (?) For the ants, all within a short time and all this immediately after moving this poor plant from a position in which it was recently set (from June) in a decidedly bad position: in the center of a terrace exposed to all winds. and in addition, you have transplanted it in a very bad period (it is repotted in spring at the vegetative restart, not when it is about to enter the vegetative rest phase).

So, what I believe happened from what you tell me and looking at the photos you sent me: the plant suffered a pesticide intoxication (i.e. an excess of chemical elements) which was aggravated by adverse climatic conditions (due to plant, air currents) which increase the phytotoxicity of the products used. Hibiscus is more receptive as it is debilitated by suboptimal breeding conditions.

What I recommend you do now: immediately put the plant back where it was before but when the cold begins, take it to a covered place, do not leave it outdoors. After that you don't have to do anything. Do not do any kind of treatment, grow the plant normally. For at least a couple of months also stop fertilizing, he has had too many chemicals.

Keep me informed of developments.

Dr. Maria Giovanna Davoli

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