Five experiments were conducted during 2004 to 2006. Four experiments were conducted at experimental
station in Khon Kean University, Thailand and one experiment at farmer’s field in Khon Kaen province. Wood
vinegar at 20 times dilution was used as soil application at 10 days before planting. The foliar application of
wood vinegar at the dilution of 200, 300 or 500 times was applied at two-week interval to peanut, 25 days after
planting until 15 days before harvest. Two types of peanut, large-seeded type and small-seeded type peanut
were used. Contaminations of A. flavus and A. parasiticus in seed were determined using blotter method.
Aflatoxin in seed was analyzed using modified direct competitive ELISA method.
Results