295 
tically then, so far as the experiments have progressed, reduced to the 
use of a strong solution of whale-oil soap, or a very strong resin wash 
(See experiments 2 and 6.) Both these washes are expensive; we have 
not yet found a cheaper whale-oil soap than 4 cents per pound by the 
barrel. This would make the wash cost 8 cents per gallon, and the cost 
of application will increase the cost of the remedy to such an extent 
that many fruit-growers will not be disposed to use it. 
The resin wash, however, is even more expensive, and the first cost 
of the tents for the gas process, to say nothing of the labor required 
to operate the tents, is such that the whale-oil soap solution remains 
the cheapest of the known effective remedies. It is safe to say that 
trees once attacked by the scale will not recuperate without active 
remedial work, and the choice therefore remains to the fruit-grower 
between losing his trees and applying one of these washes, expensive 
as they may seem. One well-known orchardist of our acquaintance has 
unhesitatingly applied, during the present winter, the whale-oil soap 
wash. It has cost him a good round sum to spray his large orchard; 
but considering the value of his orchard, he is of the opinion that he 
has come out of the tight at small cost, provided that the insect does 
not reappear. 
Comparison of California results and climate with the results and 
climate of Maryland seems to indicate two things : First, that in Florida 
and Georgia, and x^erhaps even farther north, weaker washes than those 
found necessary in Maryland will suffice. Secondly, that in Maryland 
and more northern States, winter applications should be made as soon 
as leaves fall, since at this time the insects will undoubtedly be more 
susceptible than later in the season. 
REPORT ON THE MEXICAN COTTON-BOLL WEEVIL IN TEXAS. 
(Anthonomus grandis Boh.) 
By C. H. Tyler Towxsexd, Temporary Field Agent. 
LETTER OF STI5MITTAL. 
Las Cruces, X. Hex., December 20, 1894. 
Sir: I have the honor to submit the inclosed report on an investigation of Antho- 
nomus grandis and its injury to the cotton crop in Texas, made between November 
15 and December 15, 1891. Following your instructions, I visited the infested cotton 
regions of Texas, as well as parts of the infested regions in adjacent Mexican terri- 
tory; also the border points of Eagle Pass, Laredo, and Brownsville, to determine 
where the insect crossed from Mexico into the United States. During this time I 
investigated its life-history, particularly its method of hibernation, so far as was 
possible at this season of the year; its present spread in Texas; the amount of 
damage caused by it in Texas in 1891; its history in previous years; the way in 
which it has been imported from Mexico, its original home, into the cotton re<rions 
of southern Texas; and other points mentioned in your instructions, as well as all 
that suggested themselves during the course of the work. 
