Organic farming is both very old and very new to Thailand. Traditional farming relied on organic methods, but modernisation has led to farmers using a great deal of pesticides and fertilisers. Vitton Panyakul from the EarthNet foundation has written a good overview article. There's an organisation for quality assurance of organic products called Organic Agriculture Certification Thailand.
Here's a full list of Thai members of International Federation of Organic Agriculture Movements, many of which are organic food producers:
Organic farming and food in Thailand
- APZ
- GreenNet & EarthNet - also do organic produce home delivery
- Thai Organic Food.
Two organic restaurants I plan to try very soon - Anotai vegetarian restaurant and bakery and Amaranth.
Places to buy organic produce and other products:
- Lemon Farm - shops around Bangkok;
- Emporium supermarket - on the top floor of Emporium you can get some organic (and semi-organic i.e. pesticide free) vegetables, and some more 'green' products in the health food section
- Villa market - branches around Bangkok, like at Soi Thong Lo (Sukuhmvit soi 55), and near Phrom Phong skytrain station
by Lexa Lotus
For more see here