160 



Report of State Board of Horticulture. 



Lot II. Sprayed with Lime, Sulphur, and Salt, March 5. 



Tree No. 20. — A peach tree, twelve feet high, with a six-inch trunk and 

 a nine-foot spread of top; in very poor condition, though but moderately 

 infested by the scale. No water except the natural rainfall. Forty-seven 

 per cent of the scales were alive in the beginning; ninety-two per cent 

 of these were dead on the thirteenth day, when the first subsequent count 

 was made, and ninety-eight per cent on the sample for the twentieth day, 

 the final average effect being reckoned at ninety-five per cent destroyed. 



Tree No. 27. — An apple tree, fifteen feet high, with an eight-inch trunk 

 and a seventeen-foot top; in good condition, moderately infested with 

 the scale. This tree was sprayed with water but once, and that five 

 days after the insecticide application. Thirty-six per cent of the scales 

 were alive in the beginning; sixty-two per cent of these were dead on the 

 fourth day and eighty per cent on the fifth, the average final effect being 

 reckoned at eighty-three per cent destroyed. 



Tree No. 29. — An apple tree, twelve feet high, with a seven-inch trunk 

 and a fifteen-foot top; in bad condition, and heavily infested. Twice 

 treated with water, once on the fifth day after the insecticide spray and 



