n African Entomology - Biology and laboratory host range of the moth, Diota rostrata (Wallengren) (Noctuidae: Arctiinae), a natural enemy of Cape ivy : research article
|Article Title||Biology and laboratory host range of the moth, Diota rostrata (Wallengren) (Noctuidae: Arctiinae), a natural enemy of Cape ivy : research article|
|© Publisher:||Entomological Society of South Africa (ESSA)|
|Author||L. Van der Westhuizen, S. Neser and J.K. Balciunas|
|Publication Date||Sep 2010|
|Pages||246 - 252|
|Keyword(s)||ARC-Plant Protection Research Institute, Asteraceae, Biological control, Delairea odorata, Host specificity, Lepidoptera, Life history, Senecio spp and USDA-ARS Western Regional Research Center|
Delairea odorata Lemaire (Cape ivy) (Asteraceae) has become naturalized and invasive in many countries including the United States of America where biological control is being considered as a long-term solution to managing this invasive vine. Extensive surveys throughout the natural range of D. odorata in South Africa revealed a large arthropod fauna associated with the plant. Amongst the herbivorous insects showing potential as possible biological control candidates was Diota rostrata (Wallengren) (Noctuidae: Arctiinae), a widespread defoliating moth. Although D. rostrata is highly fecund with a short life cycle, laboratory host range tests indicated that the moth had a wide host range that included other Senecio spp. with soft or fleshy leaves. Although all further testing was terminated, the study contributes towards a better understanding of the biology and host preferences of D. rostrata.
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