VERTICAL GROWTH RESPONSE OF PONDEROSA PINE INFESTED BY WESTERN PINE SHOOT BORER, EUCOSMA SONOMANA KEARFOTT (LEPIDOPTERA: OLETHREUTIDAE)
Keyword(s):
AbstractIncidence of the western pine shoot borer, Eucosma sonomana Kearfott, and tree growth measurements from 5687 ponderosa pines, Pinus ponderosa Dougl. ex Laws., were recorded in the Calf Pen plantation Payette National Forest, ID. The percentage of trees infested by shoot borer generally increased as tree height increased.Infestation of the tree’s leader usually resulted in reduced height growth especially where needle length was shortened in the leader. Height growth of infested leaders was less than uninfested leaders. This difference in height growth increased with the total height of the tree as measured in the previous year.
2003 ◽
Vol 18
(3)
◽
pp. 149-154
◽
Keyword(s):
2010 ◽
Vol 25
(2)
◽
pp. 49-54
◽
Keyword(s):
Keyword(s):
2002 ◽
Vol 32
(2)
◽
pp. 233-246
◽
Keyword(s):
1989 ◽
Vol 4
(2)
◽
pp. 52-54
◽
Keyword(s):
2016 ◽
Vol 32
(6)
◽
pp. 501-514
◽
2002 ◽
Vol 17
(4)
◽
pp. 216-219
◽
2010 ◽
Vol 19
(1)
◽
pp. 104
◽
Keyword(s):
1996 ◽
Vol 26
(6)
◽
pp. 1089-1095
◽