Fungicide of systemic and contact action. The chemical class is benzimidazoles. Active ingredient: benomyl, 500 g of benomyl in 1 kg of the drug. It is available in the form of a white wetting powder with a slight irritating odor - practically insoluble in water and most organic solvents. Not flying. Hazard class for humans - 2 (highly toxic substance), for bees - 3-4 (moderately toxic substance). Manufacturer: Agro-Kemi Kft, Hungary and ZAO August, Russia.
- The fungicidal effect is due to the cessation of the reproductive function of fungi, due to impaired cell nucleus division, when the solution is absorbed through the roots, when seeds are treated, applied to the stem or into the axils of the leaves.
- The therapeutic effect of the drug is manifested during the first three days, in the next 7 days the protective function remains.
- A little-known fact, but benomyl (fundazol) exhibits acaricidal effects - it suppresses adult spider mites and their eggs. The insecticidal properties of fundazol are in the suppression of aphids and leaf beetle larvae. This happens due to the containment of the degeneration of larvae into the adult stage (imago), but does not affect eggs, a slightly toxic effect on whitefly eggs. Presumably, benomyl also has nematicidal properties.
- Fundazol does not have phytotoxicity, but when applied to the soil in increased doses, a toxic effect is manifested (inhibits plants).
- The fungicide is effective in a wide range of temperatures, and can be used early in spring or late in autumn.
- It can be mixed with other preparations that have a neutral reaction of an aqueous solution - mixing with lime and alkaline solutions is unacceptable.
Fundazole use
- Fundazole is effective against pathogens of fungal infections, such as:
ordinary and snow pine, seed moulding, infectious lodging of coniferous seedlings, powdery mildew, gray rot - the causative agent of the genus Botrytis, spots - pathogens of the genus Septoria, Cladosponum, Colletotrichum, Marssomia, wilts and rot - pathogens of the genus Fusarium, Verticillium, Phialiphora, Cylindrocarpon, Rhistoctonia, Sclerotinia, etc.;
- Powdery mildew - 3 treatments,
Root and bulbous rot, gray rot - 2 treatments,
Spots - 2-4 treatments,
Seed dressing, seed mould - once,
Fusarium - 2 treatments.
Fundazole features
The active substance of fundazole moves in the vascular system of plants only in the acropetal direction: from the bottom up along the xylem and does not move along the phloem. I.e. systemic action is manifested only when watered and absorbed by the roots, as well as when treating seeds. When spraying, fungicidal properties are manifested only at the site of absorption - it does not move from one sheet to others in fungicidal doses.
According to G.S. Gruzdev (Chemical protection of plants, 1987) fundazol is not effective against bacteria, at the same time, the Regulations for the use of pesticides in agriculture of the Russian Federation indicate that fundazol can be used against bacteriosis on vegetables, legumes and grains. Who's right?
Fundazol gives rise to many disputes among florists and especially those involved in the cultivation of indoor plants. Fundazol is especially popular among orchid and bulb lovers, due to its high effectiveness against fungi. However, some consider the drug too toxic and inappropriate for use in the household. Rumor has it that the Fundazol sold in the store is a fake and counterfeit, that it has not been produced for a long time.
Fundazol is currently included in the list of pesticides published in the 'State catalog of pesticides and agrochemicals approved for use in the Russian Federation' as of July 04, 2014. Fundazole registration ended on 12.2014. At the time of this writing (April 2015), fundazol is indeed sold in stores from old purchases, but the Ministry of Agriculture of the Russian Federation has not released a new catalog of permitted pesticides either. So the further fate of this drug is still unclear.
But it should be noted that, like any other pesticide, fundazol has its limitations (frequency of treatments) and requires the implementation of traditional safety precautions. With the systematic use of the same fungicide, including fundazol (benomil), the stability of fungal spores can increase by 3-12 times. Therefore, if the drug did not help you, you should not consider it a fake.
And besides, fundazol is not effective against rust fungi, powdery mildew and fungi of the genera Peronospora (peronosporosis), Prytophtora (phytophtora), Pthium (soft rot, black leg) - these phytoparasites have genetic cross-resistance. It should be noted that in the personal opinion of forestry specialists, Fundazol is no longer so effective in combating coniferous diseases, which are like a scourge for foresters.
Fundazole consumption rates
Pickling before planting tubers (potatoes and other vegetables) by spraying. To prepare the solution, 10 g of fundazole is dissolved in 0.5 l of water - this volume is enough for 10 seed tubers.
Etching the bulbs of gladioli and amaryllis - immersing the bulbs for 3 hours in a solution: 10 g per 2 liters of water, garlic - for a day in a solution: 10 g per 0.5 liters of water.
Instructions for changing fundazole for the treatment of powdery mildew and other diseases on indoor and garden plants: spraying during the growing season with a 0.1% working solution. 10 g of fundazole are diluted in 10 liters of water, while 1.5 liters of solution is consumed per 10 sq.m. Spraying before flowering and after harvesting in horticultural farms, or at the first signs of illness on indoor flowers.
Fundazole toxicity
Fundazol (benomyl) is low toxic to bees and birds. Toxic to fish. Refers to highly toxic compounds for humans and warm-blooded animals for cutaneous, inhalation and oral toxicity. With prolonged contact causes dermatitis.
Security measures. When working with the drug, it is imperative to wear a respirator and gloves. It is advisable to dilute the working solution not in the apartment, but on the street. Avoid fundazole contact with eyes and skin. It is unacceptable to eat, drink and smoke. After work, wash your hands and face thoroughly.
First aid in case of poisoning: if the drug gets on the skin, wash off with a large amount of water; in case of contact with eyes, rinse abundantly with running water; if you get into the digestive tract, drink 3-4 glasses of water, induce vomiting, take several tablets of activated carbon, seek urgent medical help.
Conclusions on the appropriateness of fundazole
When our flowers fall ill, especially our favorite, rare varieties obtained after a long wait from other parts of our country, or from abroad, we are ready to pour and spray them with anything to save them. We think little about the consequences, but in vain. It is worth weighing the pros and cons. If you are not an expectant mother, you do not have children in your house and no less valuable than plants, pets, family members with asthma or immune diseases, then you can try to save plants dying from an unknown disease. It is impossible to accurately establish a fungal or bacterial infection that has affected your flowers at home. The data on fundazole are contradictory, perhaps its effectiveness against bacteria is too insignificant, and the resistance of pathogens of fungal diseases, on the contrary, is high, which means that the entire enterprise can be held as a lottery .
For completeness, it should be noted that pesticides are not divided into hazard classes by chance, fundazole hazard class 2 means that it causes allergic reactions, is a probable carcinogen for humans and a strong teratogen (fetal anamalia) for animals, and has reproductive toxicity. In this case, fundazole is slowly destroyed in the soil, the half-life of metabolites is from 3 to 6 months.