Massachusetts 

 Agricultural Experiment station 



Bulletin No. 248 March, 1929 



Tomato Leaf -Mold 



The Use of Fungicides for Its Control 



in Greenhouses 



By E. F. Cuba 



The culture of greenhouse tomatoes is an important industry in Massa- 

 chusetts, and the area devoted to this crop has increased considerably 

 in recent years. Leaf-mold is the most serious disease affecting the crop. 

 The loss of one to two months of pickings of the fall crop and one month 

 of the spring crop as the result of this disease is common. Past recom- 

 mendations regarding the proper choice of fungicides for its control are 

 conflicting and not based on experimental evidence, and growers w^ho have 

 used fungicides have not obtained control. This investigation has con- 

 sidered the merits of different types of fungicides. An effective material, 

 and a practical method of application, have been discovered w^hich are 

 recorded in this bulletin. 



Requests for Bulletins should be addressed to the 



AGRICULTURAL EXPERIMENT STATION, 

 AMHERST, MASS. 



