Different growth media; PARP (Pimaricin+ Ampicilin+ Rifampicin+ PCNB), Carrot Agar, Rye Agar and V8 Juice Agar were evaluated against mycelial growth of Phytophthora capsici. During isolation PARP was found the best medium as mean colony diameter of 2.2 cm was observed while no growth of P. capsici was found on any other media. Plant extracts Calotropis gigantean (Akk), Cassia fistula (Amaltas), Nerium oleander (Kaner), Oscimum basilicum (Niazbo), Parthenium hysterophorus (Parthenium) and Azadirachta indica (Neem) were assessed against mycelia growth of P. capsici in vitro. Parthenium hysterophorus totally inhibited the growth of P. capsici, Nerium oleander and Oscimum basilicum also prove effective to some extent. Although Azadirachta indica, Cassia fistula and Calotropis gigantea stimulated the growth of P. capsici.
Key words: Cassia, Nerium, Parthenium, Phytophthora, Pimaricin, Oscimum
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