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在马来西亚沙巴州一油棕种植园作刺蛾侵染调查,受油棕三带刺蛾(Darna tri-mal Moore)单虫侵染,程度最重的叶片属于树冠中部(约第20片叶),叶片的顶部和中部受害程度是基部的两倍以上。主要受油棕三带刺蛾和另一种刺蛾(Darna bradleyiHolloway)双虫共同侵染的叶片,其油棕三带刺蛾幼虫的密度因叶片而异,第9片叶的密度最大。叶片左右两边的幼虫个数没有明显的差异。叶片顶部和中部幼虫数分别是基部幼虫数的5和8倍。对于另一种刺蛾(D.bradleyi),叶片左右部分幼虫数也没
In an oil palm plantation in Sabah, Sabah, Malaysia, as a predator, the most heavily affected leaves were infected with Darna tri-mal Moore, the middle part of the canopy (about the 20th leaf) The top and middle leaves suffered more than twice as much damage as the base. The main co-infected by the oil palm three borer and another doth (Darna bradleyiHolloway) double worm co-infection of the leaf, its oil palm three caterpillars density of the larvae varies leaf, the ninth leaf maximum density. There was no significant difference in the number of larvae on either side of leaves. The number of larvae at the top and middle of leaves is 5 and 8 times the number of basal larvae, respectively. For the other species (D. bradleyi), the number of left and right larvae in the leaves did not