626. 
627. 
628. 
629. 
630. 
631. 
488 
3. Jacobson, M. 
between matured and juvenile 
foliage by two species of pine 
sawilies.2 J. Chem. J&col. 
6:677-694. 
5. Imms, A. D. 1948. A general 
textbook of entomology: includ- 
ing the anatomy, physiology, de- 
velopment and classification of 
insects. 7th.ed. 727 p, E. P. Dut- 
ton & Co., Inc., New York. 
Inscoe, M. N., and J. R. Plim- 
mer. 1981. Chemistry of isola- 
tion, identification and syn- 
thesis. Jn The gypsy moth: 
research toward integrated pest 
management. C. C. Doane and 
M. L. McManus, eds. U.S. 
Dep. Agric. For. Serv., Sci. and 
Educ. Agency, and Anim. and 
Plant Health Insp. Serv. Tech. 
Bull. 1584, p. 533-536. 
Isler, D. A., and J. S. Yuill. 
1956. Research on the control of 
forest insects by aircraft. J. 
Econ. Entomol. 49(1):92-94. 
Ives, W. G. H. 1973. Heat units 
and outbreaks of the forest tent 
caterpillar, Malacosoma disstria 
(Lepidoptera: Lasiocampidae). 
Can. Entomol. 105:529-543. 
Ives, W. G. H. 1976. The dy- 
namics of larch sawfly 
(Hymenoptera: Tenthredinidae) 
populations in southeastern 
Manitoba. Can. Entomol. 
108(7):701-730. 
Ives, W. G. H. 1981. Environ- 
mental factors affecting 21 for- 
est insect defoliators in Man- 
itoba and Saskatchewan, 
1945-69. Environ. Can., Can. 
Fort ‘Servs, North, For Kes. 
Cent. Inform. Rep. NOR- 
K=235%. 142 pi! 
Ives, W. G. H., and R. M. Pren- 
tice. 1958. A sequential sam- 
pling technique for surveys of 
the larch sawfly. Can. Entomol. 
90(6):33 1-338. 
. Ives, W. G. H., and G. L. War- 
ren. 1965. Sequential sampling 
for white grubs. Can. Entomol. 
97(6):596-604. 
1972. Insect sex 
634. 
O37. 
638. 
639; 
640. 
641. 
642. 
pheromones. 382 p. Academic 
Press, New York. 
Jacobson, M., M. Beroza, and 
W. A. Jones. 1961. Insect sex 
attractants. I. The isolation, 
identification, and synthesis of 
the sex attractant of the gypsy 
moths .J. “Aum. Chem.- Soc. 
83(23):48 19-4824. 
. Jaques, H. E. 1951. How to 
know the beetles. 372 p. Wm. 
C. Brown Co., Dubuque, Iowa. 
. Jaynes, H. A., and A. T. Drooz. 
1952. The importance of para- 
sites in the spruce budworm in- 
festations in New York and 
Maine. J. Econ. Entomol. 
45(6):1057-1061. 
Jaynes, H. A. , and P. A. God- 
win. 1957. Sterilization of the 
white-pine weevil with gamma 
radiation. J. Econ. Entomol. 
50(4):393-395. 
Jennings, D. T., FE B. Knight, 
S. C. Hacker, and M. E. Mc- 
Knight. 1979. Spruce bud- 
worms bibliography: With au- 
thor and key word indices. Life 
Sci. & Agric. Exp. Stn., Misc. 
Rep. 213, 687 p. Canada/U.S. 
Spruce Budworms Program, 
Sch. For. Resour., Univ. Maine, 
Orono. 
Jensen, D. D. 1957. Parasites of 
the Psyllidae. Hilgardia 
ZICZ I-99. 
Jeppson, L. Ri. H. Keifer, 
and E. W. Baker. 1975. Mites 
injurious to economic plants. 
614 p. Univ. Calif. Press, Berke- 
ley. 
Jobin, L., and A. Caron. 1982. 
Results of aerial treatments with 
Dimilin® and Bacillus 
thuringiensis for gypsy moth 
(Lymantria dispar [L.]) control 
in Quebec. Can. For. Serv. Res. 
Notes 2:18-20. 
Johnson, P.. C. 1958. Spruce 
spider mite infestations in north- 
ern Rocky Mountain Douglas- 
fir forests. U.S. Dep. Agric. 
For Serv Res. "Papy-5), 14 p: 
Intermt. For.-& -Range Exp: 
