scholarly journals Mosquito collections on the top of Mt. Ikoma in Osaka Prefecture, with special reference to the physiological age of Culex tritaeniorhynchus summorosus

1976 ◽  
Vol 27 (2) ◽  
pp. 145-152
Author(s):  
Sumiyo ITO ◽  
Sadao FUJITO ◽  
Jisao MORISHITA ◽  
Hiroshi NAKAMURA
Keyword(s):  
Special Reference ◽  
Physiological Age ◽  
Culex Tritaeniorhynchus ◽  
Osaka Prefecture

scholarly journals THE VULNERABILITY OF BALSAM FIR TO SPRUCE BUDWORM ATTACK IN NORTHWESTERN ONTARIO, WITH SPECIAL REFERENCE TO THE PHYSIOLOGICAL AGE OF THE TREE

1958 ◽  
Vol 34 (4) ◽  
pp. 405-422 ◽  
Author(s):  
J. R. Blais
Keyword(s):  
Special Reference ◽  
Tree Mortality ◽  
Spruce Budworm ◽  
Balsam Fir ◽  
Site Quality ◽  
Physiological Age ◽  
Northwestern Ontario ◽  
Relationship Of ◽  
The Relationship ◽  
Relative Vulnerability

The annual defoliation by spruce budworm and the progressive mortality of balsam fir trees were recorded in nine study plots in northwestern Ontario over a period of 11 years. In addition to general observations on the relationship of tree mortality to defoliation, some information was obtained on the relative vulnerability of the trees with respect to size, physiological age (flowering condition), and vigor (site quality).

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