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stalks in 1926 to 24 oorers per 100 stalks in 1927. In Indiana, the 
member of borers even in 1927 was less than 1 "borer per 100 stalks. Over 
the v-hole area, due to conditions especially favorable to borer increase 
in Michigan in 1927, there were l| times as many borers in 1927 as there 
■"ere in 1926. This choking, however, compares favorably with the increase 
to 4 times as many in 1926 as there were in 1925, when no such unified 
control effort was attempted. The figure for the whole area is 14 borers 
per 100 stalks in 1927 as compared with 9 borers per 100 stalks in 1923. 
Without any control effort, we probably would have had over the whole 
area 4 or 5 times as many borers in 1927 as in 192", or from 35 to 45 borers 
per 100 stalks* This result is strongly encouraging to farmers in their 
efforts to control the borer in infested territory. It is thought that 
serious commercial injury by the corn borer can be largely prevented if 
farmers will adhere to the low-cutting, clean- plowing, poling, raking, and 
burning methods of control. 
In addition to these two main objects of the campaign, the 'ork of 
1927 further supported and demonstrated conclusions which ha^e come to 
be generally accepted relative to the corn borer, namely: 
( 1 ) It. _i s jpos-jibl e to prevent, for th e most part, long-distance 
spread of the borer by human ag encies. The fact that no instance lias 
been repot bed of a j-ump of one or two hundred miles by the borer that 
could be properly credited to transportation by human agency indicates the 
effectiveness of the maintenance of a strict quarantine as far as move- 
ment by human agencies is concerned. 
(2) It is not rr.; -ible to eradicate the borer, which fact has been 
repeatedly stated in the past. Repeated field tests made in the 1927 cam- 
paign demonstrated that it is impossible to eliminate every borer over 
ny considerable area. (W. H. Larrimer, Bureau of Entomology, U. S. D, A.) 
ALFALFA WEEVIL. 
"The extensions of the territory infested by the alfalfa weevil 
(Phytonorrius -posticus G-yll-) have been inconspicuous, and have resulted 
in bringing in only two new counti^ Douglas , in Nevada, and Niobrara in 
Wyoming, The borders of the infested territory are, for the most part, 
in mountainous regions where the spread of the insect can not bo minutely 
followed because of the distance between fields. The damage inflicted 
by the alfalfa weevil has been slight, except in the v3 canity of Rexburg, 
Idaho. The number of adult weevils present in the fields throughout the 
sect^ttc range seems to be about normal," (9, I, Reeves, Bureau of Sntomolo 
U. 3. D, A. ) 
a 
MEXICAN I« 
"In the spring of 1927 the Mexican fruit worn ( Anastrepha 
Lc "- W ) red in Ltrus plantings of the Rio Grande 
Valley of Texas, larva occurring Ln small numbers in fruit from Mission 
bo Brownsville, Scattered inf Lons, therefore, occur ed throughout 
