Abstract:

To screen effective therapeuticagent, 5 fungicides, namely, thiophanate methyl (70% WP), prochloraz manganese (50% WP), carbendazim (50% WP), chlorothalonil (75% WP) and prochloraz (25% EC) controlling Corynespora leaf fall disease (CLFD) of Hevea rubber were conducted by using conventional method in rubber nursery. The preliminary results showed that prochloraz (25% EC) diluted 2000 times was best with control effect 82.99% after application 28 days. Chlorothalonil (75% WP) was better with control effect 78.20% at the same condition. Thiophanate methyl (70% WP), prochloraz manganese (50% WP) and carbendazim (50% WP) were worse with control effect less than 50% in conditions of test. So, prochloraz (25% EC) and chlorothalonil (75% WP) were preferable therapeuticagents against CLFD in rubber nursery with diluted 2000 times.