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Short Report
ScienceAsia 7 (1981): 033-036 |doi: 10.2306/scienceasia1513-1874.1981.07.033
SEVERE DEFOLIATION OF AVICENNIA ALBA BL. BY LARVAE OF CLEORA INJECTARIA WALKER
T. PIYAKARNCHANA
ABSTRACT: A vast area of Avicennia alba BL. forest in the upper portion of the Gulf of
Thailand was defoliated by the larvae of Cleora injectaria Walker (Lepidoptera : Geometridae). The defoliation occurred around September in the forest along the banks
of Bang Pakong River mouth, Chachoengsao. frovince, to Muang district, Chonburi Province. The destruction was first observed in October, 1980. The trees have partially recovered by showing the buds or young leaves since beginning of January, 1981.
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Department of Marine Science,. Faculty of Science, Chulalongkorn University, Bangkok,
Thailand
Received 10 February 1981
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