Problems African violet: the expert answers on the diseases of the violet
THE AGRONOMIST ANSWERS ON HOW TO GROW AND CARE FOR PLANTS
QUESTION ABOUT THE AFRICAN VIOLET (SAINTPAULIA)
MY AFRICAN VIOLET HAS APHIDS, HOW CAN I TREAT IT?
QUESTION FROM ANNA MARIA
My African violet is more than 4 years old, but for some time it has had small white dots (I BELIEVE AFIDI) which I have removed several times with a toothbrush, used for this purpose, manually. At first it looks fine, but then the white dots reappear and the leaves curl slightly; even the flowers seem to be struggling and are quite shriveled.
I will be grateful if you can help me.
Hi Anna Maria,
aphids are a very bad thing in the sense that as much as we try to keep them under control manually they return inexorably. At this point I believe that the best thing would be to do a treatment with a specific systemic aficida.
I would advise you to use a systemic product because it has the particularity of being absorbed by the plant and through its lymphatic system it is translocated in all its parts; in this way these insects, which have a stinging-sucking mouth apparatus, as they suck the sap, also suck the insecticide.
Mostly these products have a good persistence in the plant, the so-called "deficiency time" or "safety time" which represents the period in which the product remains active and since you do not have to fight only the aphids you see now but also the new born that are gradually being born from the eggs, even the newborns, will undergo the same treatment.
An effective product could be based on Imidacloprid. Be careful not to confuse the trade name with the active ingredient. It is as if I told you: «Acetylsalicylic acid is effective» which is nothing but aspirin. Since there are many Imidacopril-based products on the market, choose the one you prefer. In any case, if you do not find it, there are many others, equally effective. Just take a systemic aphid product.
I strongly recommend that you respect the "shortage times" that is to say to do only one treatment and then wait for that period of time indicated in the package (if the product you find does not show it on the label, be warned and do not buy it) to do another treatment. Always think of plants as living creatures and therefore don't overdo it, you could poison them.
When you use chemicals, also keep in mind that they are "poisons" and therefore be careful when administering them, especially if there are animals or children at home. Always follow the warnings on the package.
If you have any doubts, you know where to find me.
Dr. Maria Giovanna Davoli