371 
Experiment 19: 
December 16. 1} pounds of soap to the gallon; January 17, fatal to 85 per cent 
of the scales; March 11, no living scales found, except two, in doubtful con- 
dition; tree still whitened with the soap; tree originally densely incrusted ; 
May 4, fatal to at least 95 per cent of the scales; tree uninjured, but without 
bloom or fruit. 
Experiment 20 : 
December 16, 1 pound of soap to the gallon; January 17, fatal to 60 per cent of 
the scales; March 11, but 10 per cent of the scales remain alive; May 4, per- 
centage of living scales unchanged; tree uninjured and with fruit. 
Experiment 21 : 
December 16, I pound of soap to the gallon; January 17, fatal to about 20 per 
cent of the scales; tree was subsequently subjected to additional treatment. 
Experiment 22 : 
December 16, | pound to the gallon ; January 17, fatal to about 10 per cent of the 
scales: tree subsequently subjected to general treatment given the orchard. 
Home-made fish-oil soap. 
Experiment 15: 
December 16, li pounds of soap to the gallon ; January 17, fatal to 50 per cent 
of the scales; May 4, fatal to about 75 per cent of scales; tree in leaf and fruit, 
vigorous. 
Experiment 16: 
December 16, 1 ponnd of soap to the gallon; January 17, fatal to about 20 per 
cent of the scales: tree subsequently subjected to general treatment given the 
orchard. 
Experiment 17 : 
December 16, \ pound of soap to the gallon ; January 17, fatal to only about 5 
per cent of the scales; March 11, more than 50 per cent of the scales living; 
tree afterwards subjected to general treatment given the orchard. 
Resin wash. 
Experiment 13: 
December 15, six times strength of summer wash ; applied to rn apple tree very 
warm, almost scalding hot. January 17, examination indicated the death 
of all the scales, some of which were not yet completely dried up ; March 11, no 
living scales found; May 4, most careful aud extended examination resulted in 
discovering 4 living scales; tree vigorous, but without bloom; trees on either 
side in bloom, but other trees in neighborhood, untreated, also without bloom. 
Experiment 31 : 
January 23, same strength as last, applied warm; March 11. fatal to 95 per cent 
of the scales; May 4, tree killed, except one vigorous shoot of last year's 
growth, springing from near base; tree densely intrusted with scales, and its 
death probably due to this fact ; scales on the living branch not very numerous 
and no living ones found. 
Experiment 14 : 
December 15, four times strength of summer wash; January 17. fatal to b5 per 
cent of the scales; March 11, but 5 per cent living; May 4. all but the new 
growth of last year dead, evidently from the scales which densely incrust the 
bark; fruit is set in one or two instances on the living portion: on the entire 
tree 95 per cent of the scales are killed. 
Experiment 32 : 
January 23, same streugth as last; March 11, fatal to 90 per cent of the scales; 
May 4, tree healthy, with scattering fruit. Xot above 10 per cent of the 
scales living, and these confined to the terminals. 
