questions: asking about the control for late blight in tomato. 
 answers: suggested to spray ridomil mz-27(mancozeb 64%+metalaxyl 8%@2gm/lt of water followed by dithane m 45(@2.5gm/lt of water)in alternate application (3 sprayers with ridomil mz-27 and 3 with dithane m 45 at an intervals of 12 days.