18 MASS. EXPERIMENT STATION BULLETIN 36V 



Figure 3. Comparison of overliead and bottom watering in relation to tJie prevalence of tomato 

 leaf mold. Irrigation pipe and more severely diseased foliage on the left, the result of overhead 

 watering. 



Figure 4. Guttation and dew on the foliage are favorable to tomato leaf mold. 



