120 



Plum, xx. 15 ; xxi. 3. 

 and Hop as alternate food plants of 



I I < ip-louse, xviii. 57. 

 and Peach Curculio, experiments with 

 arsenical poisons for the, xvii, 

 X \ . 21-25. 

 feeding experiments with, xvii, 



21. 

 (See also Plum-curculio. ) 

 as food plant of Common Striped Cut- 

 worm, xxiii. 34. 

 of Imbricated Snout-beetle, xxi, 



143. 

 of Leaf-crumpler, xv, 66, 67, 69. 

 of May-beetles, xxiv, 143. 

 of Oblique-banded Leaf-roller, 



xiii, 94. 

 of Southern Corn Root-worm 

 beetle, xviii, 149. 

 -borer, xvi, IX. 

 American, xvii, XI, 26-29. 

 description of, xvii, 28. 

 distinguished from Peach-borer, 



xvii, 27. 

 distribution of, xvii, 29. 

 insecticides for, xvii. 27. 

 literature of. xvii, 29. 

 life history of. xvii, 27. 

 California wash for. xxii, 50, 53, 54, 



55, 68. 

 Chinese, injured by American Plum- 

 borer, xvii, 26, 27. 

 -curculio bred from apples. Misc. Ess., 

 21. 

 cost of experimental spravings for, 



xxiv, 91. 

 experiments in 1904 with arsenical 



sprays for, xxiv, 80-92. 

 feeding habits of, xvii, XV. 

 insecticide and apparatus used in 

 experimental spraving for, xxiv, 

 82. 

 outline of articles on, xxiv, 78, 79- 

 80. 

 of insecticide experiments in 1885 

 for protection of apples against, 

 xxiv. 78-79. 

 poison tests of apples sprayed with 

 arsenate of lead and other in- 

 secticides for, xxiv. 92-94. 

 results of experimental sprayings 



for. in 1904. xxiv. 82-91. 

 spraying apples fur, xxiv, 78-99. 

 summary of results of spraying for, 



xxiv. 92. 

 superficial injuries to apples by, as 

 indirect cause of dis- 

 ease, xxiv, 78. 

 commercial importance of. 

 xxiv, 78. 

 Empoasca mali on. xxi. 78. 



Plum — Continued. 

 flamed with gasoline blast-lamp to 

 destroy San Jose Scale, xxiv, 47, 52. 

 infested bv Black Peach Aphis, xxii, 

 100, 110. 

 by Howard's Scale, xx, 16. 

 by San Jose Scale, xx. 1. 6, 8. 9, 



10. 11; xxi. 4, 5, 13. 

 by Soft Maple Bark-louse, or Cot- 

 tony Maple Scale, xiv. 104; xxiv. 

 103. 

 by Tussock-moth, xxii, 102. 

 by Walnut Scale, xxii, 115. 

 injured by Cigar-Case-bearer, xxi, 146. 

 by Fruit Bark-beetle, xvii, 2, 3, 4, 



5, 6. 

 by Leaf-crumpler. xv. 66, 67, 69, 73. 

 by Tarnished Plant-bug, xiii, 122, 

 123. 

 Japanese, infested bv San Jose Scale. 



xxi. 27. 

 leaves as food of adult Conotrachelus 

 nenuphar, xvi, 76. 

 of Mav-beet!es, xvii, 42; xviii, 

 114. " 

 -scab, xxii. 127. See under Peach 



fruit-spot. 

 sprayed with kerosene emulsion, xxii. 



40; effect, 48, 51. 

 subject to attack bv Peach-tree Bor- 

 er, xxii, 100, 122. 

 to crown-gall, xxii, 100. 

 to peach fruit-spot. xxii. 101. 

 treatment of, with hydrocyanic acid 



gas. xxii. 29, 30, 37. 

 -trees defoliated bv Anomala undulata, 



xxiii. 186. 

 Typhlocyba rosse on, xxi, 78. 

 Wild, as food of Leaf-crumpler, xv. 

 73. 

 Plume-moth, Raspberry, description of, 

 and note on life history of. xiv, 91- 

 92. 

 Plums burrowed bv Euphoria inda. xxiii, 

 101. 

 injured by leaf-footed plant-bugs, 

 xxiii, 197. 

 bv Western Green June-beetles. 

 'xxiii, 102. 

 Plusia brassicae, xxi. 146. 

 Cabbage, injuries by and parasites of, 



xxi. 152-153. 

 Celery, xxi, 153. 

 Poa compressa as food plant of Colaspis 

 Root-worm, xxii, 148. 

 pratcnsis, xvii. 62. 

 j pose. Rhizobiu's, xviii, 106. 

 Podisus. xxiii, 195. 



Pcecilocapsus lineatus. xxiii. 200-201, 

 233. 



