14 



the petals had fallen. Tliis applicatiau so injured the foliage that no 

 further treatment was attempted. 



It has since been learued that if more lime had been added to make 

 the fungicide neutral or alkaline no injury would have taken place. 



CHERRIES. 



For many years the cherry crop on the college grounds has been 

 almost a total failure, on account of the wormy fruit caused by the 

 larvae of the plum eurculio and the rotting of the fruit when almost 

 ripe. To prevent this condition, the trees were sprayed May 26th, 

 29th and June 16th, with the Bordeaux mixture and Paris green, 

 one pound to 100 gallons. 



Results. 



On unsprayed trees no perfect fruit matured, all being more or less 

 irregular in form and containing worms, while on the sprayed trees 

 the fruit wa3 smooth and nearly free from worms. 



The fungicide, not having lime enough in it, injured the foliage 

 more or less, but none of it fell off and the crop was matured. It is, 

 therefore, important that the yellow prussiate of potash test be used 

 before applying the Bordeaux mixture on the cherry or the peach. 



The plum trees were sprayed April od with the copper sulphate 

 solution ; May 26th, 29th and June 5th, with the Bordeaux mixture 

 and Paris green, one pound to 200 gallons; June 14th, July 26th 

 and Aug. 10th, with the Bordeaux mixture alone, and Sept. 9th, 

 with the ammoniacal carbonate of copper, for the plum eurculio, 

 shot-hole fungous, black wart, and the brown fruit rot. 



Results. 



On all of the sprayed trees, the leaves remained healthy until the 

 end of the season, few or no warts appeared and the fruit was not 

 injured by the eurculio, but, owing perhaps to the long interval 

 elapsing between the last two applications, the fruit rotted somewhat. 



On the unsprayed trees the foliage was not as perfect and dropped 

 oft earlier, moie warts api)eared, and the fruit was entirely destroyed 

 by the eurculio. 



