Web based IPM system for Japanese pear diseases in Japan. III. Weather data acquisition system to estimate leaf wetness duration and scab infection severity.

Ohtani, T. (Chiba Prefectural Agriculture Research Center, Chiba 266-0006, Japan) ;
Sugahara, K. (National Agricultural Research Center, Tsukuba, Huiki. 305-8666, Japan) ;
Tanaka, K. (National Agricultural Research Center, Tsukuba, Huiki. 305-8666, Japan) ;
Laurenson, M. (National Agricultural Research Center, Tsukuba, Huiki. 305-8666, Japan) ;
Watanabe, T. (National Agricultural Research Center, Tsukuba, Huiki. 305-8666, Japan) ;
Umemoto, S. (Chiba Prefectural Agricultural Junior College, logans, Chiba 283-0001, Japan)