120-117'' 



3 MiH. 



8i!5° 3MiM. 



1% 



REflTfD 



117-114 





Figure 4. Representative begonia plants treated with hot water. 



A and C treated Sept. 20: B. Oct. 4; E, Oct. 7. Infested leaves which were further injured by 

 the treatment were removed after the bath and no more disease appeared. 



D, no treatment. Leaves of untreated plants showing disease were removed periodically up 

 to ttie time of the photograph on Nov. IS. The effect of this practice on the composition and quality 

 of the plant is clearly shown. 



