Records of two sugarcane pests Eumetopina flavipes Muir (Hemiptera: Delphacidae) and Chilo terrenellus Pagenstecher (Lepidoptera: Pyralidae) from Torres Strait and far north Queensland
2007
Grimshaw, Judy F. | Other, A. N.
The State of Queensland includes islands within Torres Strait. However, Quarantine legislation separates these islands from mainland Australia, and divides them into two Quarantine zones. Details of the Torres Strait and far north Queensland distribution and damage levels of Eumetopina flavipes Muir (sugarcane leafhopper) and Chilo terrenellus Pagenstecher (sugarcane stem borer) are published here for the first time. The delphacid is a known vector of the sugarcane disease, Ramu stunt, which occurs in northern Papua New Guinea (PNG) and possibly other locations. Eumetopina flavipes has been known to occur on islands within Torres Strait and the communities near the tip of Cape York Peninsula since 1983. The disease is not known to be present in this population of the bugs. The sugarcane stem borer, C. terrenellus, has been detected on a number of occasions in sugarcane on two of the three Torres Strait islands closest to PNG (Saibai and Dauan). Its 'appearance' at these two sites is intermittent and damage levels are never as high as in the nearby communities in the Western Province of PNG. The majority of sugarcane plantings on Torres Strait islands are yellow and purple varieties of chewing cane (Saccharum officinarum) which is the host for all records reported here. Recent detection of Chilo crypsimetalla (Turner) on several islands in Torres Strait is reported, although this is not thought to be a pest of sugarcane.
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