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The fat plants they are easy to grow and need little space. In general, they do not need a lot of care but can be subject to attack by young parasites. Who cultivates fat plants at home tends to be alarmed and, not having a thorough knowledge of the various parasites, usually goes to a nursery asking for a treatment to delete the lice from more fat.
The parasites that can attack succulents are thin in size, the scale insects, for example, have a sucking mouth apparatus that fix themselves on the surface of the plants feeding on the sap. The fat plants they can be attacked by aphids, polyphages, green or black, the aphids require a treatment very simple, these can be eliminated manually by spraying soapy water on the plant (50 grams of Marseille soap per liter of water).
Treatment against all types of parasites
In case of serious attacks it is necessary to use a solution on the whole plant, in particular it is advisable to dwell on the armpits of the new shoots and on the back of the leaves, in fact these are the parts most subject to attacks. You can make a treatment with a pesticide or a good rotenone-type insecticide.
Treatment for cochineal infestations
Cochineal infestations must be treated promptly. Succulents of the "mammillaria " they are often subject to infestations by cochineal cottony at the collar. Cooccinillas should be treated with imidacloprid-17.1 at a dose of 0.50 ml for each liter of water.
In the case of slight infestations, the parasites can be removed manually, using a cotton swab soaked in denatured alcohol, or the plant can be sprayed with a solution of water and Marseille soap as previously mentioned.
Plants in bloom or with imminent flowering should not be treated, in this case it is better to operate with a cotton swab dipped in denatured alcohol.