I9ii.] 



Spraying Experiments. 



Cox's which had been sprayed with the "half-strength " wash 

 showed on the tenth day a slight "scorching" on a few 

 leaves, and a very few leaves had fallen off; as far as could 

 be seen, no serious injury had been done to the trees. No 

 injury resulted on the trees of Worcester Pearmain and Bis- 

 marck sprayed with the lime-sulphur washes, nor on the 

 Worcesters sprayed with Bordeaux mixture. 



(8) On June 22nd, in dull weather (no sunshine), 17 trees 

 of Cox's Orange Pippin, and one tree of Cox's Pomona — 

 all growing in the College plantation — were sprayed with a 

 lime-sulphur wash at two strengths ("full-strength" and, 

 "half-strength"). At the same time eight trees of Cox's 

 Orange Pippin and one tree of Cox's Pomona were sprayed 

 with Bordeaux mixture (made on the formula 4:4:50). A 

 number of trees were left unsprayed as "controls." Of the- 

 trees sprayed with the "full-strength" lime-sulphur wash, 

 (1) the eight bush trees of Cox's Orange Pippin showed 

 severe scorching of the leaves, which soon resulted in severe- 

 defoliation ; (2) the one espalier tree of Cox's Orange Pippin 

 showed slight "scorching," but no leaf-fall occurred; (3) 

 the one espalier tree of Cox's Pomona showed only a very 

 slight trace of "scorching" and no leaf-fall occurred. The 

 eight bush trees of Cox's Orange Pippin sprayed with "half- 

 strength" lime-sulphur wash showed only very slight scorch- 

 ing of the leaves — doing no appreciable injury — and no 

 defoliation occurred. Of the trees sprayed with Bordeaux 

 mixture, both the bush and espalier trees of Cox's Orange 

 Pippin (eight bush trees and one espalier), and the one 

 espalier of Cox's Pomona showed only a slight spotting of 

 the leaves, and no leaf-fall resulted. 



Spraying Experiments on Gooseberries. 



(1) During May a considerable number of bushes of Whin- 

 ham's Industry and Berry's Early, growing in the College 

 plantation, were thoroughly sprayed with the lime-sulphur 

 wash at full strength (sp. gr. roi). No injury to the leaves, 

 resulted. 



(2) On June 4th, when some apple trees in the College 

 plantation were sprayed (in sunny weather) with the "full- 

 strength " lime-sulphur wash, a number of inter-planted. 



