REMEDIES AND PREVENTIVES. 69 
of all the scales, some of which were not yet completely dried up : March 11, no 
living scales found ; May 4, most careful and 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 incrusted 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 85 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 strength as last; March 11, fatal to 90 per cent of the scales; 
May 4, tree healthy, with scattering fruit: not above 10 per cent of the 
scales living, and these confined to the terminals. 
Experiment 5: 
October 25, twice summer strength. This experiment was ineffective, the resin 
having separated out somewhat, and the wash was therefore much weaker 
than intended. Tree afterwards subjected to the general treatment given the 
orchard. 
Experiment 33 : 
January 23, same strength as last: March 11, fatal to 75 per cent of the scales. 
Tree afterwards subjected to general treatment given the orchard. 
Kerosene oil. 
Experiment 42 : 
January 23, application made to two trees, one badly incrusted with scales, the 
other a vigorous tree, less infested; March 11. tatal to all the scales: May 4, 
both trees dead. 
Kerosene emulsion. 
Experiment 23 : 
December 16, undiluted emulsion; January 17, fatal to 90 per cent of the scales, 
a few on terminals apparently living; May 4, all scales dead except in isolated 
spots, evidently where the wash did not reach: tree dead or dying, except 
one limb, which is in leaf and fruit, but this also will probably not survive the 
present season; this result due partly to the wash, although greatly assisted 
by the dense scale incrustation. 
Experiment 38: 
January 23. same strength as last; March 11, fatal to all scales; May 1, tree dead. 
with the exception of one or two branches, which are making feeble effort to 
leaf out. Tree originally badly infested, but not enough so to have caused 
death, which must soon result. 
Experiment 24: 
December 16, emulsion diluted with 1 part water: January 17, fatal to 80 per 
cent of the scales; May I. only some half do/en scales found after careful 
examination: about 98 per cent killed: tree in full leaf and fruit. 
Experiment 39 : 
January 23, same strength as last: March LI, fatal to 95 per cent of the scales: 
part of the tree vigorous, uninjured, and in full leaf, with some fruit : remain- 
der dead, probably from the effect of the scales: some few living scales on 
terminals, perhaps 5 per cent. 
