Table of Contents. I 13 



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The Maple-tree Borer, Glycobius SPECIOSUS (Say) 202 



Injuries from the borer and inquiry how to kill it, 202. How the 



presence of the young borer maybe detected, 202. Cutting out, the 

 best remedy, 203. When the bused was first observed, 208. Described 

 and illustrated by Dr. Harris in bis usual graphic style, 203. Its 

 increase in recent years, 203. The beauty of tbe beetle, 203. It 

 attacks bealthy trees, 204. Observations made upon it at Schoharie, 

 N. Y., in 1859, 204. Its burrows beneath tbe bark described, 204. 

 The grubs frequently girdle the tree, 204. How they disfigure the 

 trunk, 204 . Large number of maples killed by them at Bennington, 

 Vt.,205. Tbeir ravages at Glens Falls, N. Y., 205. When ovipo- 

 sition occurs, 205. 



The Squash-bug, Anasa tristis (De Geer) 205 



Figure of the insect, 205. Replying to inquiry, Paris green not 

 serviceable against it, 205 . Best remedy, perhaps, is trapping and 

 killing the hibernated females, 205 . Partial success in using counter- 

 odorants to ward off attack, 205. When and how to use the traps, 

 206. What the traps may consist of, 206. Search for and destruction 

 of the eggs, 206. Killing the young squash-bugs soon after hatching, 

 206 . Value of the preceding methods, 206 . Search should be made 

 for the bugs injuring the main stalk below the surface of the ground, 

 206. How this injury may easily be prevented, 296. High fertilization 

 commended, 207. 



The Hop-vine Aphis and Remedies 207 



Liability of the hop crop to destruction by the hop-vine aphis, 207. 

 Disastrous years can not be predicted, 207. The insect introduced 

 from Europe, 207. The "hop-washings" in England, 207. Its life- 

 history recently worked out, 207. Possible to preserve the hop crop 

 from destruction, 207. Where the insect hibernates, 208. The " stem- 

 mother " figured, 203. The early spring broods on plum, 208. The 

 migrating brood and figure of the "migrant," 208. When to attack 

 the aphis, 208. How its excessive multiplication may be prevented, 

 208. Formula for the best insecticide for use, 209. How to apply the 

 emulsion, 209. Formula for the English hop-wash, and its efficacy, 

 208. Spraying to be repeated at intervals, 209. Preventives of 

 attack, 210. 



The Melon Aphis, Aphis cucumeris Forbes 210 



Aphides infesting muskmelon leaves in Lowell, Mass. , identified as 

 the above-named species, 210. The insect characterized, 211. Its 

 injuries in Illinois, 211. Now for the first time observed in the eastern 

 part of the United States, 211. A parasitic attack upon it, 211. Pro- 

 fessor Forbes' recommendations for destroying the aphis, 212. The 

 muskmelon "shoots" received show galls resulting from Cecidomyia 

 attack, 212. The insect obtained from the galls, 212. It seems to be 

 undescribed — if so, might be named Cecidomyia cucumeris, 212. 

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