TOMATO LEAF-MOLD 

 Table 1. Toxicity of Fungicides to Germinating Spores. 



-f germination; fungicide not effective. 

 — no germination; fungicide effective. 

 • germination considerably suppressed but fungicide not considered eflective. 



A 1 per cent solution of lime-sulfur was not eifective. A 10 per cent solu- 

 tion showed merit by methods of study II and III. In the water drop (IV) 

 at the higher temperatures germination was inhibited. 



Potassium sulfide in a .08 per cent solution was toxic at 90° F. (I, II, III), 

 but spores sown in a water drop were not affected at 70° and 80° F. A .4 

 per cent solution gave disinfection (II and III) at 80° and 90° F. Ger- 

 mination was controlled in the water drop (IV) and the dry residue (I) was 

 toxic at 80° and 90° F. 



Solbar is a sulfur powder. It contains about 35 per cent water soluble 

 sulfur and the water solution contains chiefly barium tri-sulfide. The material 

 was ineffective by methods of study I and IV but gave some control of 



