6^ THE SAN JOSE SCALE. 
Experiment 45 : 
January 24. same strength as last and yielding the same results. 
Experiment 36 : 
January 23, f pound of soap to the gallon of water: March 11, fatal to about 70 
per cent of the scales; May 4, 85 per cent of the scales have succumbed. 
Tree vigorous, with the exception of two branches, which are evidently hilled 
by the scale; the whole tree originally densely infested; fruit in very small 
quantity. 
Experiment 12 : 
December 15, & pound of soap to the gallon ; January 17, fatal to about 50 per 
cent of the scales. Tree afterwards subjected to the general treatment given 
the orchard. 
Experiment 37 : 
January 23, f pound to the gallon; March 11, upward of 50 per cent of scales 
killed. Tree afterwards subjected to general treatment given the orchard. 
Hard laundry soap. 
Experiment 18 : 
December 16, 2 pounds to the gallon; January 17. fatal to 85 per cent of the 
scales; March 11, no living scales could be found "after extensive examination; 
May 4, in patches, a few living scales found; more than 97 per cent killed. 
Tree was originally very heavily incrusted with scales, and about one-half the 
branches are dead, probably from this cause; no bloom or fruit present. 
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 i, 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, 4 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, i 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, IV 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 pound 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, one-half 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 an apple tree very 
warm, almost scalding hot: January 17. examination indicated the death 
