REPORT OF THE STATE ENTOMOLOGIST 1902 179 
PLATE 4 
Tree 4 was sprayed with the lime, salt and sulfur mixture in 
the spring of 1902 with no indication of injury to the bloom. 
Tree 113 was treated in April 1900 with a mixture of whale 
oil soap and crude petroleum and the two following springs with 
a 20% mechanical crude petroleum emulsion. There is no sign of 
injury, and the profuse bloom shows that the buds were not 
harmed. 
PLATE 5 
Trees 41 and 47 have been sprayed three springs in succession 
with a 20% mechanical crude petroleum emulsion, except that in 
the case of the former a 25 ¢ emulsion was applied in 1901. Little 
or no injury has resulted, and the somewhat abundant bloom 
shows that the buds were not affected to any extent. 
PLATE 6 
1 Work of willow and poplar curculio, Cryptorhynchus 
lapathi Linn. 
2 Nun moth, Psilura monacha Linn; slightly enlarged. 
3 Birch leaf Bucculatrix, Bucculatrix canadensi- 
sella Chamb., a, skeletonized leaf; 6, molting cocoon; ¢, larva; 
d, head of larva; e, anal segments of larva; f, same of pupa; g, 
cocoon with extruded pupal skin; h, moth — all enlarged. (From 
Insect Life) 
