76. 
qa: 
78. 
TUS? 
80. 
81. 
SS: 
84. 
ring in the Piedmont plateau of 
North Carolina. Duke Univ. 
Sch. For. Bull. 14, 168 p. 
. Beal, J. A., and K. B. McClin- 
tick. 1943. The pales weevil in 
southern pine. J. Econ. Ento- 
mol. 36(5):792-794. 
Beal, J. A., and C. L. Massey. 
1945. Bark beetles and am- 
brosia beetles (Coleoptera: 
Scolytidea): with special refer- 
ence to species occurring in 
North Carolina. Duke Univ. 
Sch.For. Bull.. f0, 178 p. 
Beal, R. H. 1967. Formosan in- 
vader. Pest Control 35(2):13-17. 
Bean, J. L., and H. O. Batzer. 
1956. A spruce budworm risk- 
rating for the spruce-fir types in 
the .Lake-States. U:S: Dep. 
Agric. For. Serv., Lake States 
For. Exp. Stn., Tech. Notes 453, 
YEO) 
Bean, J. L., and P. A. Godwin. 
1955. Description and bio- 
nomics of a new red pine scale, 
Matsucoccus resinosae. For. 
Sci. 1(2):164-176. 
Becker, G. C., Jr, and D. M. 
Benjamin. 1964. Biology of the 
Swaine jack-pine sawfly in 
Wisconsin. Can. Entomol. 
96(4):589-599. 
Becker, G. C., and D. M. Ben- 
jamin. 1967. The biology of 
Neodiprion nigroscutum 
(Hymenoptera: Diprionidae) in 
Wisconsin. Can. Entomol. 
99(2):146-159. 
2. Becker, G. C., R. C. Wilkinson, 
and D. M. Benjamin. 1966. The 
taxonomy of Neodiprion 
rugifrons and N. dubiosus 
(Hymenoptera: Tenthredinoidea: 
Diprionidae). Ann. Entomol. 
Soc. Am. 59:173-178. 
Becker, W. B. 1938. Leaf-feed- 
ing insects of shade trees. Mass. 
Agric. Exp: Stn. Bull. 353, 
p. 1-78, 81-83. 
Behre, C. E., A. C. Cline, and 
W. L. Baker. 1936. Silvicultural 
control of the gypsy moth. 
Mass. For. & Park Assoc. Bull. 
SJ seep: 
85. 
86. 
Oi: 
88. 
89: 
90. 
oT. 
93% 
Belanger, R. P. [1981]. Sil- 
vicultural guidelines for reduc- 
ing losses to the southern pine 
beetle. Jn The southern pine 
beetles RazCe Thatcher J. 
Searcy; JE. -Coster..and G. D: 
Hertel, eds. U.S..Dep. Agric. 
For. Serv. and Sci. and Educ. 
Admin. Tech: Bull. 1631, 
p. 165-177. 
Belanger, (R>. P.; “and. -B..F, 
Malac. 1980. Silviculture can 
reduce losses from the southern 
pine beetle: U.S: Dep. Agnc.. 
Comb. For. Pest Res. & Dev. 
Program, Agric. Handb. 576, 
17 -p: 
Belanger, R. P., E. A. Osgood, 
and. GE. Hatchell,. 1979. 
Stand, soil and site charac- 
teristics associated with south- 
ern pine beetle infestations in 
the southern Appalachians. 
UcS, .Dep.;;Agnic...For Serv. 
Res. Pap. SE-198, 7 p. South- 
east. For. Exp. Stn., Asheville, 
N. ©: 
Bellinger, P. F 1954. Studies of 
soil fauna with special reference 
to the Collembola. Conn. Agric. 
Exp.cStnt Bull. 5835.67 p: 
Belyea, R. M. 1952. Death and 
deterioration of balsam fir weak- 
ened by spruce budworm de- 
foliation in Ontario. Part If. An 
assessment of the role of associ- 
ated insect species in the death 
of severely weakened trees. J. 
For. 50(10):729-738. 
Benedict, W. V. 1959. Every 
forester has a stake in forest in- 
sect spraying. J. For. 57(4): 
245-249. 
Benhem, G. S., Jr. 1974. A syn- 
opsis of the obligate and fac- 
ultative insect parasite 
nematodes. J. Invert. Pathol. 
24:263-270. 
. Benjamin, D. M. 1955. The bi- 
ology and ecology of the red- 
headed pine sawfly. U.S. Dep. 
Agsric:; Tech. Bull). 1118,:57 p. 
Bennetts, RxrDaieand! (SW. 
Brown. 1958. Life history and 
sex determination in the di- 
459 
