Foggo Andrew, Speight Martin R
Department of Zoology, University of Oxford, OX1 3PS, UK.
Oecologia. 1993 Oct;96(1):134-138. doi: 10.1007/BF00318041.
Damage to the buds of the common ash (Fraxinus excelsior L.) by larvae of the ash bud moth Prays fraxinella Bjerk. was investigated in trees growing in the presence, or absence, of an adjacent ditch. The presence of a ditch was correlated with increased damage levels due to bud moth. Saplings were used in an experiment to compare the effects of artificial drought and root damage with those of ditches. Both root damage and drought elicited analogous responses to those observed in trees growing near a ditch, being associated with elevated levels of bud moth exploitation and reduced growth of shoots. There exists a documented link between ditches, root disturbance, and the dieback of hedgerow ash trees in Great Britain; the response of P. fraxinella to environmental disturbances associated with dieback is hypothesised to be evidence of the possible role of moth damage as a causal factor in dieback.
在有或没有相邻沟渠的环境中生长的树木上，研究了白蜡芽蛾（Prays fraxinella Bjerk.）幼虫对欧洲白蜡树（Fraxinus excelsior L.）芽的损害情况。沟渠的存在与芽蛾造成的损害水平增加相关。在一项实验中使用了树苗，以比较人工干旱和根部损伤与沟渠造成的影响。根部损伤和干旱引发的反应与在靠近沟渠生长的树木中观察到的反应类似，都与芽蛾侵害水平升高和新梢生长减少有关。在英国，沟渠、根部干扰和树篱白蜡树的枯死之间存在有记录的联系；据推测，白蜡芽蛾对与枯死相关的环境干扰的反应，证明了蛾类损害可能是枯死的一个因果因素。
