Occurrence of Aschersonia placenta and Hypocrella raciborskii on Asterolecanium ungulata in durian (Durio zibethinus)
Titel:
Occurrence of Aschersonia placenta and Hypocrella raciborskii on Asterolecanium ungulata in durian (Durio zibethinus)
Auteur:
Lim, T. K. Ibrahim, Y. B. Tang, M. K. Liew, R.
Verschenen in:
Biocontrol science and technology
Paginering:
Jaargang 1 (1991) nr. 2 pagina's 137-144
Jaar:
1991
Inhoud:
A lecanoid scale Asterolecanium ungulata, a pest of durian, was observed to be effectively parasitized in nature by an orange-coloured, entomopathogenic fungus. Both anamorphic and teleomorphic stages were frequently produced on the same stroma on the insect cadaver. Using cultural, histopathological and scanning electron microscopy techniques, the anamorph was identified as Aschersonia placenta, and the teleomorph as Hypocrella raciborskii. This represents the first report of A. placenta and H. raciborskii on the scale A. ungulata.