12 



Bordeaux Mixture and Plants 



Plant No. 5. Damaged exactly as No. 2, and then sprayed with 

 water. 



On the day following the treatment, there was not the least trace of 

 injury or scorching noticeable on plants Nos. 1 and 3; whereas Nos. 2 

 and 4 showed very serious injury typical of Bordeaux scorch, and 

 moreover the injuries in every case had quite obviously begun at the 

 artificially damaged spots, and afterwards spread. The scorching was 



r, G 



Fig. 5. Foliage damaged by aphis and treated with " no-excess-lime " Bordeaux mixture. 

 Fig. 6. Foliage damaged by bruising and treated with •"no-excess-lime" Bordeaux 

 mixture. 



very nmch worse in character and more widespread in No. 4 than in 

 No. 2 ; No. 5, the plant sprayed with water, showed a browning along 

 the extreme edges of the scratches and spots, but no spreading of injury. 

 Other plants belonging to the same batch as those used in the above 

 trials but which had been allowed to develop their foliage without special 

 protection in the greenhouse were covered with the " no-excess-lime " 

 mixture and iiiciudod in the series ; these showed slight scorching 



