Main insect pests damaging Neolamerckia cadamba and Nauclea orientalia plantations in Ca Mau province
Keywords:
Arthroschista hilaralis, Moduza procris,, Nauclea orientalis, Neolamarckia cadambaAbstract
Using native tree species, such as Neolamarckia cadamba and Nauclea
orientalis, for sawlog afforestation is being encouraged in Vietnam,
especially in the Southern provinces. Outbreaks of insect pests to
plantations of these species at U Minh, Ca Mau have occurred
consecutively in 2015 and in 2016. Leafroller (Arthroschista hilaralis) and
leaf-eating caterpillar (Moduza procris) were identified as major
lepidopteran pests. To Neolamarckia cadamba plantations, M. procris
caused minor damage to the crowns of the trees but A. hilaralis caused
heavy to very heavy damage. To Nauclea orientalis plantations, damage
incidence and severity was minor by A. hilaralis but damage was heavy to
very heavy by M. procris. The damage incidence and severity depended
on tree age - young plantations under 5 years were often more severely
damaged than plantations over 10 years old
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