Author(s):

Shricharan S, Mahalakshmi S and Kaviraj S

Abstract: In view of organic production, botanicals play a significant role in management. Ground nut, an important oil seed crop is affected by various plant pathogens. Among this Aspergillus niger causes collar rot in groundnut. Four plant extracts were tested against Aspergillus niger under four different concentrations i,e 5, 10,15 and 20%. The study was done in vitro by poison food technique. Out of four plant extracts, maximum inhibition was found in garlic (80.00) at 20% followed by tulsi (71.87), green chilli (69.23) and ginger (62.68). The least mean inhibition was found in garlic (62.68). It was found that inhibitory effect increases with increase in concentration of plant extracts.

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