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Agro Homeopathy

Feb 2019 Plant Doctor – RadkoTichavsky

The Plant Doctor – Radko Tichavsky

Holo homeopath Radko Tichavsky answers questions about hard scale in rose plants, root knot nematodes, pears infested by Apple Maggots, Western Corn Rootworm infestation and cancer viruses in soil. Send your garden and crop questions to: [email protected]

RadkoTichavsky is a Czech born Mexican Agrohomeopath. He is a co-founder and director of Instituto Comenius in Mexico and author of Handbook of Agrohomeopathy, 2007 (Spanish) and Homeopathy for Plants, 2009 (Spanish), Organon de la Holohomeopatíaand creator and teacher of Holohomeopathy.

Agrohomeopathy Course!

RadkoTichavsky is now offering a one semester virtual course in Agro homeopathy (in English). You can learn how to define and analyze holons and how to repertorize the specific homeopathic treatment beyond just disease or pest names. You can find out more here:


Oct Plant

Organon de la Holohomeopatía – Six years in the making, it is the latest book by RadkoTichavsky, researcher on the application of homeopathy in agriculture. This Spanish language book covers homeopathic interventions in agriculture from the holistic view, allowing greater certainty in repertorizations. It addresses a novel concept of metabolic similarity, not only among plants, but also among different species of the animal and plant kingdom.It studies the formation and dynamics of attractors, areas of greater vitality within the holons and coexistence units of different living organisms.  Holohomeopathy is a fascinating contribution to the application of homeopathy to plants.  It allows one to discover a universe of surprising relations in vital dynamism. It puts into the hands of the agricultural producer a valuable tool for the successful handling of pests and diseases in crops of any size.  For ordering or information: [email protected]

Dear Sir,

I am using salicylic acid for virus and bacteria, but can you recommend a remedy for scale (hard scale not soft scale like mealy bug ) in rose plant?

Thank you



Dear Abdulsalih,

The problem of the scales often happens due to poor drainage of the soil, and due to the lack of regular irrigation (has to be made 3 times daily) of roses during of the very hot times. The stressed plant emits biochemical signals of attraction to scale insects and they simply respond to this call. So, it is very important to improve the soil structure, for example by adding some river sand to get better drainage, and water the roses regularly.To discard the stems that are infected with scale insects or dry, they have to be burned and not composted, as this causes the permanence of the infestation of scale insects.To control this pest apply Ricinus communis 6 CH(made from fruits) diluted in water with sap ofOpuntia ficusindica as coadyuvant.


Dear Radko,

I am hoping that Holohomeopathy can help me with the dreaded root knot nematodes (RKN) that affect parts of my mixed vegetable garden. Also, white flies.  I understand the precautions necessary with RKN and have tried most of the recommended agro-homeopathic treatments: teucreum, cina, etc. Strengthening the plants helps (calciums, Carbo veg, Calendula, etc.) but nothing seems to actually repel or eliminate them.

I am in Baja California Sur, Mexico, about ½ mile inland from the Sea of Cortez, on a humid desert. The soil is sandy, improved with vegetable compost, no animal products. The short growing season is from November to May-June because summers are impossibly hot. This prevents me from planting early enough to avoid RKN damage. Most of the rain comes from hurricanes in the fall. The sensitive plants start to fail in April as the knots hatch.

Petroleum and other remedies have helped control or eliminate red spider mites, scale, aphids, cucumber beetles, ants, etc., but white flies are still a problem, if you could comment on that.Making remedies is no problem for me but I’m wondering about the plants you recommend, many of which are unknown to me. Are they native to the area of the holons you are talking about?

Also, could you tell us how exactly to make the remedy of the holon itself?

Thank you for explaining about Coccinella types. I had wondered why it was totally ineffective for me.

Thank you,



Hi Elena,

Your question is really composed of several questions. I recommend that you take our agrohomeopathy diploma course, where you can deepen your knowledge and get answers better than in a short comment from this column.

In general, it can be said that nematodes play an important role in the holon, although it does not seem so from the point of view of the farmer.They are attracted by high levels of CO2 in the soil and at the same time they respond to the presence of heavy metal toxicity in the soil. You need to understand the chelating function (fix the heavy metals toxicity) of the nematodes in the holon.If there are these two attractors (heavy metals and high levels of CO2 in the soil) then there will be no homeopathy remedy to dissuade them.

So first you have to make sure that the soil is well aerated, and second, apply some chelators for example sap of Opuntia ficusindica diluted in water.The selection of remedies that address the problem of nematodes will depend on the crop in question.There are many holohomeopathic nematicides and here I’ve provided  a small list of them:

Melia azedarach (“The canelo” in Spanish, elaborated from the fruits), Tageteslunulata, Tageteserecta, Tagetestenuifolia, Santonina, Acacia farnesiana(“huisache), Artemisa sp., Argemone mexicana (” Chicalote “in Spanish), Crotalaria juncea, Crotalaria spectabilis, Chenopodium album, Sonchusoleraceus(the tincture is prepared from the leaves and roots that are toxic for the eggs larvae of the Melodogyne incognitaEucalyptus sp., Boswellia sacra (“frankiscense”), Zingiberofficinale, Pelargonium spp, Cymbopogon citratus (“zacatelimón” in spanish), Ocymumbasilicum, Lavandula officinalis, Mirothecium sp., Caryasp, Engelhardti sp., Juglans sp., Platycarya sp. and Pterocarya sp.

They are generally applied in the 6 CH potency and their final selection will depend on the degree of metabolic similarity of the remedy with the plant to be treated and from its availability in the holon.

As for the whitefly, it is necessary to keep the nitrogen in the soil under control.Its excess softens the tissues and allows the sucking insects, like this little whitefly, to penetrate the epidermis of the plants easily. Calcareacarbonica 6 CH has to be applied at the time of the new shoots (which are the most likely to be attacked) and alternating with Argemone mexicana 6 CH (“Chicalote” ins spanish).As for the coccinellids there is a huge variety of them, and Coccinella spp. and Harmonia spp. are the best known. Each coccinellid has its own expression of semiochemicals, substances that help it associate with other insects, animals and plants, with which it maintains a greater or lesser metabolic similarity.In this sense, there is not a single universal remedy such as Coccinellaseptempunctata for all the aphids in any crop, as is often suggested in simplistic agrohomeopathy books, but each cultivated plant has a group of coccinellids with greater or lesser metabolic similarity and different food specializations, and they take care of the holon and live in community with him.This is the reason why Coccinellaseptempunctataworks in some crops and acts against some insects (with which it has a metabolic similarity) and does not work at allwith others, with which it has no similarity.

Among the coccinellids in Mexico you can also find the tribes of Adalia sp., Hippodamia sp., Brachyacantha sp., Cycloneda. sp., Neda sp., Paraneda sp., Rodolia sp., Oryssomus sp., which are very active predators of a great diversity of insects.Only very few tribes like Epilachna sp. are harmful directly to crops, consuming the leaves of plants. Some coccinellid tribes such as Psylllobora sp. even eat mildews. Several species of two tribes,  Delphastus sp., and Nephaspissp, specialize in eating whitefly larvae (Bemisia sp.), and this is the subject of your interest. A bionosode made of the whitefly prepared at the 6 CH potency disperses the signal of the presence of the whitefly in the holon and actively attracts the beneficial insects, like some parasitic wasps, and of course coccinellids of these two mentioned tribes.

As for the bionosode of the whole holon, we use a biopreparation made of a representative sample of the soil.It is sprayed or applied in irrigation at the 6 CH potency. We also use bionosode made from the holon´s wild plants.These bionosodes helpthe cultivated plants adapt better to the climatic and nutritional conditions of the holon.


Hello Mr. Tichavsky

We live in Medford, N.J.(U.S.) Zipcode 08055. This is the East coast of the U.S. and the weather and rainfall are moderate. We grow plums and pears. The pears were infested by Apple Maggots last summer. That pretty much destroyed the entire crop. Is there a holohomeopathy approach we can take in the next growing season?

Thank you

William Cooper


Hello William,

The Apple maggots, Rhagoletispomonella is a very vigorous pest distributed throughout the American continent.The control of this pest can be carried out with the application of Rutagraveolens 6 CH with Opuntia ficusindica sap sprayed when the fruits are formed.To understand a little beyond a simple homeopathic repellent remedy, you can experiment with Polistes sp. (“paper wasp”). It is interesting to know that this shares between 2-3 semiochemicals with the Rhagoletispomonella.To reinforce the effect of protecting your crops you can capture some Polistes sp. Adults.A good idea is to prepare a trap with a little  sugar water to attract them. Capture two specimens, prepare mother tincture in alcohol, dynamize this to 6 CH and apply by spraying on the trees.Polistes sp. wasps are very active predators of many insects and among them also of the adults of Rhagoletispomonella, which avoid places with the odor of semiochemicals of paper wasps.


Greetings Mr. Tichavsky,

We grow corn in Ames, Iowa, a midwestern state in the U.S (50010).  A nearby farm experienced a Western Corn Rootworm infestation. (Diabroticavirgiferavirgifera). Many farmers use genetically engineered corn to prevent this but we refuse to plant GMO corn. How might we prevent Western Corn Rootworm from taking hold?

Thank you

Carl Hansen


Hi Carl,

We’ve had excellent experiences with the control of Diabroticavirgiferavirgifera by means of Larreatridentata 6 CH applied with the Opuntia ficus-indica sap as a coadyuvant. You can also add the application of Silicic acid 6 CH to reinforce the systemic acquired response (SAR) of the plants to all pests and diseases.


Dear Mr. Tichavsky,

We dug up the grass in part of the lawn to grow vegetables, but never got around to planting.  Meanwhile our cat used that patch of earth as a kitty litter. She subsequently died of fibrosarcoma. It’s two years later now, and we’re wondering it would be safe to grow vegetables there, or could there be some cancercausing virus in the soil from our cat’s disease.

Thank you



Dear Helena,

The viruses, viroids and viral granulations that accompany some types of cancer are fragments of DNA or RNA, and as a rule, they do not survive outside the host cell. So, for the presence of viruses you should not be worry. The only thing that could affect human health, from the excrement of your cat, is Toxoplasma gondii a parasite bound in cats and frequently shared with humans.This parasite can calcify and form a cyst up to 100 microns in size and they can remain for a long time in the soil, hibernating and remaining dormant.You can cover the area with a black plastic and leave it for three weeks in the sun season, this is so called solarization; the high temperature destroys the possible pathogenic germs. Then apply Larreatridentata 6 CHsprayed once and you can be sure about to growing healthy vegetables there with no problem.

About the author

Radko Tichavsky

Radko Tichavsky was born in the Czech republic. He has lived in Mexico for more than 25 years and is one of the most important agrohomeopaths in Latin America. He is the author of the book "Manual de Agrohomeopatia", a homeopathy book on plants. Radko teaches agrohomeopathy in several countries and regularly publishes articles in special journals and internet portals. He works as a researcher and teacher at the university and has already taught agrohomeopathy to many students. He is the director of the Comenius Institute ( More details can be found in the following interview:


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