372 
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, fatal 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 4, 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 4, only some half dozen 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 11, fatal to 95 per cent of the scales. 
Part of the tree vigorous, uninjured, and in full leaf, with some fruit; re- 
mainder dead, probably from the effect of the scales. Some few living scales 
on terminals, perhaps 5 per cent. 
Experiment 25 : 
December 16, emulsion diluted with 2 parts water; January 17, fatal to 50 per 
cent of the scales. Tree afterwards subjected to general treatment given the 
orchard. 
Experiment 40 : 
January 23, same strength as last; March 11, fatal to 75 per cent of the scales; 
on some parts of the tree all the scales were killed ; May 4, tree dead, probably 
from effect of scales and borer. Effects of latter were very marked about base 
of tree. The tree was also densely incrusted with scales. 
Experiment 26 : 
December 16, emulsion diluted with 3 parts water; January 17, fatal to about 
30 per cent of the scales ; tree afterwards subjected to general treatment given 
orchard. 
Experiment 41 : 
January 23, same strength as last; March 11, fatal to 75 per cent of scales; May 
4, tree dead, with the exception of new shoot of last year's growth from near 
base; scales dead on this branch, which was not in very healthy condition and 
the experiment has therefore little value. 
Experiment 3 : 
October 25, emulsion diluted with 4 parts water; November 17, not very effect- 
ive; tree afterwards subjected to general treatment given orchard. 
