ix 
We doubt if a low temperature in the early fall renders Tangle- 
foot useless, for on October 26, when it was 30 degrees Fah., we 
found bands on our own trees still sticky, even on the north side 
of the trunks. On Nov. 16 with the thermometer at 15° the bands 
were sufficiently sticky to prevent any insect crossing. 
The outlook in regions affected this year, and where proper pre- 
cautions as above outlined were not observed, is indeed serious, 
unless some now unforeseen relief, such as extensive parasitism of 
eggs, or their destruction by predaceous mites or birds, or by bac- 
terial or fungus disease in the caterpillars next spring, come to the 
rescue. This pest may last for from three to five years. 
Property owners whose trees were at all injured in the spring 
of 1914, and many whose trees were not touched, will probably, if 
they have not taken proper precautions, see their basswoods, and 
possibly other trees, stripped of their leaves in the early summer of 
1915. As explained above, this might have been largely or entirely 
prevented. 
The White Grub, the larva of Lachnosterna sp. is a pest of 
growing importance in Minnesota. It has always been complained 
of periodically in connection with lawns and occasionally straw- 
berries, but, in recent years, it has increased to such an extent that 
it has called for extensive work, both to determine the differ- 
ent species causing the injury and also to devise practical remedial 
measures. Serious complaint regarding this insect comes to us in 
connection with corn, strawberries, evergreen seedlings, and as 
noted above, lawns, golf links and pasture lands. Similar injuries 
and even more severe are reported from Wisconsin. See, in this 
connection article by Mr. Moore on “Truck Crop Insects,” p. 64. 
Nursery and Orchard Inspection. This work has been increased 
a hundredfold since the new Inspection Law went into effect. See 
p20: 
Special Work. So closely connected is the work of the State 
Entomologist (as outlined by the law) with that of the Experiment 
Station, that no report of this Department is complete without ref- 
erence to the Station work in the line of economic entomology. 
Hence we include here brief articles from other entomologists in the 
Entomological Division of the Experiment Station, of which the 
writer is chief. 
Mr. Ruggles writes upon “Spraying in Minnesota” and “Some 
Important Tree Insects,” p. 52; Mr. Howard upon “Some New 
Suggestions in Fly Control” and “Warble Flies,” pp. 57, 61; Mr. 
