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Chinaberry slurry (Melia azedarach)

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Chinaberry slurry (Melia azedarach)

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Plant vitality Fermentation Plant-based

Fermentation

Biological transformation of the plant material by microorganisms (yeasts, bacteria) in total or partial absence of oxygen, releasing and transforming active compounds over a longer period than the other techniques (days to weeks).

Process summary

1) Chop the plant material and submerge it in water, in a wide, non-airtight container (to let gases escape). 2) Stir daily during fermentation. 3) Let ferment from several days to several weeks, depending on ambient temperature, until it stops foaming. 4) Strain and dilute before use — the undiluted product can be very concentrated.

See all preparation methods

 ✅ Authorised (some countries) Bio-inputs in BurundiBio-inputs in ColombiaBio-inputs in Costa RicaBio-inputs in IndonesiaBio-inputs in IndiaBio-inputs in KenyaBio-inputs in South KoreaBio-inputs in MoroccoBio-inputs in PeruBio-inputs in the PhilippinesBio-inputs in RwandaBio-inputs in TanzaniaBio-inputs in UgandaBio-inputs in South SudanBio-inputs in the Congo - KinshasaBio-inputs in Somalia

Ground ripe chinaberry fruits fermented in water, used undiluted in urban gardens in Córdoba and Santa Fe (Argentina).

Application

Application description: Undiluted, on trunks, branches, leaves and around the beds, according to the source.

Dose: The source gives no fixed rate.

Tips

Chinaberry fruits are toxic if eaten, to people and animals: gloves, and keep away from children and animals. Before any use, check your country's regulations: in the EU, a homemade preparation presented for plant-protection use is not authorised.

Preparation process

1. Crush the fruits.
2. Put them in a 2 L bottle with the water, leaving some air, and close.
3. Leave 2 weeks in the shade, opening and shaking every 2 days.
4. Filter before use.

Ingredients

  • Water ⓘ — 0.528 gal
  • Ripe chinaberry fruits (Melia azedarach) ⓘ — 2.205 lb
  • For 2 L: 1 kg ripe chinaberry fruits; 2 L rain or standing water.

Tools and equipment

  • Strainer or filter cloth
  • Mortar or crushing tool
  • 1-litre bottle

Preparation time

2 weeks.

Product obtained

Brown liquid with a strong smell.

Source / Reference

IPES, RUAF Foundation and FAO (2010). “Biopreparados para el manejo sostenible de plagas y enfermedades en la agricultura urbana y periurbana”, ¿Cómo hacerlo? series, sheet n.º 19, validated by the Pro Huerta/INTA programme (Marcos Juárez, Córdoba, and Rosario, Santa Fe, Argentina): https://www.fao.org/3/a-as435s.pdf — guide also circulated by Portal Frutícola. Recipe written in our own words.

Recipe written in our own words by biopreparados.es. Copyright and sources

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Contact person

Grégory Prybys
Tel: +33 7 75 76 37 70 — WhatsApp: +54 9 11 2157 0868
Country: Argentina

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Regulatory status

✅ Authorised in Burundi, in Colombia, in Costa Rica, in Indonesia, in India, in Kenya, in South Korea, in Morocco, in Peru, in the Philippines, in Rwanda, in Tanzania, in Uganda, in South Sudan, in the Congo - Kinshasa and in Somalia Bio-inputs in BurundiBio-inputs in ColombiaBio-inputs in Costa RicaBio-inputs in IndonesiaBio-inputs in IndiaBio-inputs in KenyaBio-inputs in South KoreaBio-inputs in MoroccoBio-inputs in PeruBio-inputs in the PhilippinesBio-inputs in RwandaBio-inputs in TanzaniaBio-inputs in UgandaBio-inputs in South SudanBio-inputs in the Congo - KinshasaBio-inputs in Somalia

Bio-inputs in Burundi Authorised bio-preparations: Burundi
Bio-inputs in Colombia Authorised bio-preparations: Colombia
Bio-inputs in Costa Rica Authorised bio-preparations: Costa Rica
Bio-inputs in Indonesia Authorised bio-preparations: Indonesia
Bio-inputs in India Authorised bio-preparations: India
Bio-inputs in Kenya Authorised bio-preparations: Kenya
Bio-inputs in South Korea Authorised bio-preparations: South Korea
Bio-inputs in Morocco Authorised bio-preparations: Morocco
Bio-inputs in Peru Authorised bio-preparations: Peru
Bio-inputs in the Philippines Authorised bio-preparations: Philippines
Bio-inputs in Rwanda Authorised bio-preparations: Rwanda
Bio-inputs in Tanzania Authorised bio-preparations: Tanzania
Bio-inputs in Uganda Authorised bio-preparations: Uganda
Bio-inputs in South Sudan Authorised bio-preparations: South Sudan
Bio-inputs in the Congo - Kinshasa Authorised bio-preparations: Congo - Kinshasa
Bio-inputs in Somalia Authorised bio-preparations: Somalia

In the EU, this preparation is not an approved basic substance: a homemade preparation presented for plant-protection use is not authorised there. Plant preparations and extracts appear on the official lists of inputs permitted in organic farming of: Burundi, Colombia, Costa Rica, Indonesia, India, Kenya, South Korea, Morocco, Peru, Philippines, Rwanda, Tanzania, Uganda, South Sudan, DR Congo, Somalia. Depending on the country, the certification body's approval may be required: see each country's page.

Official texts

What the icons mean: ✅ Authorised ⚠️ Tolerated 🟠 Not prohibited ⛔ Not authorised EU 🔎 Status being verified Full details →

Documentary information, checked on 26/10/2026. Not a substitute for legal advice; regulations may vary from country to country. See the regulations · Substances authorised in Europe

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