TWENTIETH ANNUAE MEETING. 53 



experiments, but \\c had coniphiints from not a few growers. 

 Of all the fungicides tried, JJordeaux gave the most common 

 injury through spotting the foliage and subsequent leaf fall. 

 This varied in different orchards, being quite prominent in 

 some, where fully half the leaves fell, and inconspicuous in 

 others. While the varieties sprayed may have had some- 

 thing to do with it, the stronger- the Bordeaux and the more 

 frequent the spraying, the greater was tiie injury that re- 

 sulted. The use of arsenate of lead in the Bordeaux had 

 nothing to do with producing the injury. 



The self-boiled hme-sulphur apd the straight commer- 

 cial lime-sulphur sprays caused no leaf injury of importance. 

 The commercial lime-sulphur sprays containing other ingre- 

 dients, however, did produce injury, which in some cases was 

 even more serious than that caused by Bordeaux. Bogart's 

 Sulphur Compound, used only at the Station orchard, at a 

 strength of 1-| to 50, produced considerable leaf injury, but 

 little at 1 to 75. It was not determined whether the arsenate 

 of lead used with it had any effect in producing the injury. 

 One for All, used only in the Ives orchard, at a strength of 5 

 and 6 to 50, as recommended by the manufacturers, produced 

 very serious leaf fall, but did not russet the fruit or cause it 

 to drop. Weaker strengths were not tried. Sulfocide, used 

 generally at a strength of 1 to 200, produced more or less 

 injury wherever tried, and in one case very serious leaf 

 injury and fruit fall. The trouble with Sulfocide is that it 

 must be used rather weak to escape injuring the foliage, but 

 chiefly that neither Paris green or arsenate of lead can be 

 used with it without greatly increasing the injury. The man- 

 ufacturers now recommend the use of lime with the Paris 

 green to prevent this, and while we did not use it in our ex- 

 periments with apples, we did on a few small peach trees, 

 where it reduced, but did not entirely prevent, the injury. If 

 one is to use Sulfocide in spraying, it is certainly wise, if 

 an insecticide is combined with it, to include the lime. 



