The Effect Of Artificial Defoliation On The Growth Of Pinus Patula In East Africa

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Date
1970
Authors
Austara O.
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Abstract
In the past decade there have been several epidemics of various lepidoptera in the pine plantations of East Africa [2, 3, 6 and 8]. Many of these resulted in complete defoliation of the hosts whilst others, though less severe, caused significant and noticeable defoliation. Only in one instance, however, namely the Complete defoliation of Pinus patula by BllZllra edwardsi [3], did trees die. and even then mortality was low. The effect of two or more defoliations following in rapid succession is not known, as epidemics have been sporadic, but it seems that under conditions prevailing in East African plantations, pines can generally survive at least one complete defoliation by those lepidoptera currently considered to be the major pests.
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East African Agricultural And Forestry Journal, XXXVI (NO1), p. 114-118