The Plant Doctor – RadkoTichavsky- May 2019


Holohomeopath Radko Tichavsky answers questions about lemon and orange trees attacked by the Citrus leafminer (Phyllocnistiscitrella), Phyllocnistis citrella attacking citrus fruits, Zebrda Chip disease in New Zealand, Candidatus Liberbacter solanacearum  and more.

Radko Tichavsky 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 Holohomeopatía and creator and teacher of Holohomeopathy.

Agrohomeopathy Course!

Radko Tichavsky is now offering a one semester virtual course in Agrohomeopathy (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:


Sept PlantOrganon de la Holohomeopatía – Six years in the making, it is the latest book by Radko Tichavsky, 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]

Hello Mr. Tichavsky,

We have young lemon and orange trees growing here in Western Australia.  The problem is the Citrus leafminer (Phyllocnistis citrella), a moth larva. It makes  silver colored tunnels in the leaves and can damage the trees. We heard that there are wasps which are the natural predators of the Citrus Leafminer but we don’t know how to attract the wasps.  We live in Perth, Australia, zipcode 6006.  Can you make any suggestions?

Thank you

Noah Williams


Dear Noah,

Although Phyllocnistis citrella seems to do little damage tothe tree since it mainly attacks the young leaves of citrus fruits, it can transmit the Xanthomonas campestris, a bacterium that causes citrus canker, a serious quarantine disease. There are mainly two beneficial insects that could attract to your plants if they are present in the holon: Cirrospilus quadristriatus is an eulophid wasp that is native to subtropical and tropical regions of Asia that has been introduced and successfully tested as a biological control of citrus leafminer and in Australia and also Agenias piscitricola Logvinovskaya of the family Encyrtidae is used for the same purpose.

There is little research on the semiochemicals that these two insects recognize as an attractor or pheromone. Although, attempts have also been made to synthesize one, to date none has absolute effectiveness.The best way to attract Ageniaspis citricola or Cirrospilus quadristriatus, if they have been introduced to your growing area, is to prepare a bionosode of Phyllocnistis citrella and apply it in the sprayed6 CH potency in the affected trees.

Other strategies used consist in applying Azadirachta indica 4 CH. This homeopathic remedy interrupts the life cycle of the miner so that it cannot be reproduced. It is applied using as an adjuvant 10 drops of mother tincture of incense resin (Boswellia sacra resinae) for each liter of homeopathic remedy. Note: It is important to know that the use of Azadirachtaindica can damage bees and other pollinators and should not be used during the flowering season.

Tillandsia usneoides 6 CH on the other hand quickly eliminates the larvae on the leaves, but it does not diminish the quantity of adults.To reduce the number of adults we use Thuja occidentalis essential oleum 6 CH.  Note that Thuja occidentalis essential oil is different from the well-known homeopathic remedy Thuja occidentalis.

Dear Mr. Tichavsky,

I’ve been growing potatoes in Hawkes Bay New Zealand for the last five years. Last year Zebra chip disease (Candidatus Liberibacter solanacearum) became a problem. It stunts the plants, damagesby scorching the leaves and the potatoes become discolored.  Monthly temperatures vary by 10.3 °C (18.5°F) which is a low range. The average diurnal temperature range/ variation is 8.9 °C (16.1 °F). Is there a way to combat this?  Zipode is 4175.

Benjamin Clemens


Hi Benjamin,

Candidatus Liberbacter solanacearum is an important international disease affecting not only potatoes but also other plants of the same family (peppers, tomatoes, eggplant). The presence of this gram-negative bacterium is preceded and/or accompanied by some types of mycoplasma, and as other gram-negative bacteria it is polymorphic, that is to say it can exist in more than one morphological form.

The strategy we have used in agrohomeopathy consists of applications of Salix babylonica 6 CH (elaborated from MT of small twigs of this tree).

The active compound is salicic acid that has to be applied together with the application of vitamin C  6 CH, which helps to develop in the plants a systemic acquired resistance to this bacteria. For good effectiveness of the vitamin C 6 CH it is necessary to make sure that the liquid in the moment of application has a temperature of 37 degrees.

As far as the physiology of the life cycle of the bacteria is concerned, it interrupts the flow of sap from the tubers to the aerial part of the plant and vice versa. So, it is important to nourish not only the roots and tubers of the potato, but also to perform foliar nutrition simultaneously.

Another important factor is to ensure no reinfection of the bacteria by the psyllids. For this, we use Papaver somniferum latex 6 CH (remedy that shares 80 metabolites with the potato) alternated with Ginkgo biloba 6 CH (shares 92 metabolites with the potato) with Aloe vera sap(contains 65 metabolites common with the potato) in ratio of 1:100, together with the homeopathic remedy as an adjuvant.

Dear Professor RadkoTichavsky,

I would like your opinion on my preparation for 6 CH of mother tincture of live aphids (green) from the trachelospermum jasminoides plant. After two days having sprayed this preparation on the leaves, wasps arrived to make their nest on the awning above the “false jasmine”, instead of the desirable ladybirds (coccinellidi). I think it’s a characteristic reminder of the holon in which I live. Could I attract the coccinellidae another way?

Thank you!

Roberto Migliorelli


Dear Roberto,

I am very glad that you are advancing in your homeopathic applications and research.Your questions always reflect a study and acute observation.The aphids and vespids are connected directly and indirectly (ants between many other insects) by multiple semiochemicals, and when present in the holon they come immediately.The reaction is always really fast, and some find it magical, although in reality it has a scientific foundation: wasps are attracted by hormones emitted by aphids.

In this case I suggest to apply Chrysoperla carnea 6 CH.You can catch chrysoperlasby connecting a spotlight at night to the open air inside a trap made of an old pantyhose.They are easy to catch and you will only need one to make the mother tincture and from the tincture you prepare the remedy.  In this case Chrysoperla spp. contains another semiochemical (attraction hormone) called (Z)-4-Tridecene, which is specific to Chrysoperla sp. and Coccinella sp. not including wasps.

Hi Mr. Tichavsky,

I have loads of dandelions (weeds) in my garden. I live London and weather here is constantly changing from very cold to warm to frosty to rainy. I have apple trees in my garden and there is a raspberry shrub as well. Is there something that I can use to keep the dandelions away?

Preetika Goel 


Dear Preetika,

All the plants that grow in your holon respond to imbalances in the soil, i.e. in this case, soil compacted and contaminated with heavy metals, in urban or peri-urban conditions mainly by Pb.To give you an idea, Taraxacum officinalis absorbs and submits to a chelation process an enormous list of elements: Al, As, Ba, Ca, Cd, Ce, Co, Cr, Cu, Fe, Ga, K, Mg, Mn, Mo, Na, Ni, Rb, Sr, Ti, Tl, V, and Zn. That is, it is doing an ecological and bioremediation service in your holon.

You must cut the flowers of Taraxacum officinalis during the flowering of the apple trees so that they do not compete with the trees for the attention of the pollinators (bees, bumblebees but also many other pollinating insects). You can use  the flowers and make a kind of honey rich in flavonoids by heating the flowers in sugar water and save it for winter and use it to mitigate lung diseases.

To control Taraxacum officinalis, first apply Taraxacum officinalis radix 30 CH (a homeopathic application elaborated from the same roots of dandelion) once, then sow seeds of any kind of clover (white or red) dispersing them between the plants of T. officinalis. The Trifolium sp.(clover) attracts to its roots many nitrogen-fixing rhizobacteria, and bacteria that make phosphorus available for plants, that deposit and make available these elements in the soil so that they are absorbed by the roots of the apple trees.  Once the seeds of clover emerge, apply Trifolium radix 6 CH (homeopathic remedy elaborated from the roots of the clover) to stimulate their growth and colonization of space.

You will quickly notice decrease of dandelion plants (but not the complete elimination, because you need some Taraxacum sp. in your holon) and you will also observe that your apples will develop more by increasing their input of N, and P, two of the macronutrients important for their healthy development.

Hello Mr. Tichavsky,    

I grow kitchen greens along with ornamental plants on my balcony. I have a potted Chickoo (sapodilla) plant. It flowers and fruits every season, but the fruits fall off before growing to the full size. Minimum temperature is 31degrees, Maximum temperature is 45 degrees.  Can you suggest anything?

Thank you

Dr. Anjana Dongre

Radko Tichavsky:

Hello Anjana,

This is a known physiopathology of Manikarazapota. After the temperature exceeds 41 degrees Celsius, the tree aborts fruits and flowers. You can place the pot in semi-shade to lessen the direct impact of the sun’s rays during the time of high temperatures. Use Kalium carbonicum 6 CH with 10 drops of mother tincture of incense (Boswellia sacra resinae, for each liter of homeopathic remedy). Potassium is the essential element in the opening and closing of stomata (plant vents) and its correct functioning increases the resistance of the plant to high temperatures. It is applied only once prior to the time of high temperatures and helps the plant cope with thermal stress with more comfort. During times of high temperatures Kalium carbonicum 6 CH with sap of Opuntia ficus-indica (10 ml of sap for each 990 ml of homeopathic remedy) is sprayed folilarly.

About the author

Radko Tichavsky

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 agrohomeopatía", 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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