Population Dynamics of Sugarcane Moth Borers in Indonesian Cane Fields

Abstract

We conducted monthly monitoring of lepidopterous moth borers in four sugarcane fields in Java, Indonesia, from May 2009 to May 2011. Fields sampled belonged to Pesantren Baru, Jombang Baru, Gondang Baru and Subang sugar factories. Three main moth borer species were found to inflict damage to sugarcane plantations in all regions, and these are the stalk borers Chilo sacchariphagus (Bojer) and Chilo auricilius Dudgeon and the top borer Scirpophaga excerptalis (Walker). Tetramoera (Eucosma) schistaceana (Snellen) was also encountered but only caused minor damage. Borer populations increased with plant age and reached a peak around January – May in most cases, with the onset of rainfall triggering population rise. All borers coexisted in the same plant with no evidence of competition between the two stalk borers (C. sacchariphagus and C. auricilius) over their specific feeding location (internode) or between the two stalk borers and the top borer (S. excerptalis) over the same plant. This suggests that an infestation by one species does not make the plant less desirable to be colonised by another. Parasitism rates by natural enemies were very low which reflects the challenges facing biological control efforts in Java. Knowledge generated through this project will improve our understanding of borer dynamics in South East Asia and will enhance our preparedness for potential introduction by any of these pests into Australia

Pola serangan penggerek batang Chilo sacchariphagus Bojer. (Lepidoptera: Pyrallidae) pada ruas tebu

“…Beberapa spesies penggerek dapat menyerang satu batang tebu. Penggerek batang C. sacchariphagus, C. auricilius dan penggerek pucuk Scirpophaga excerptalis dapat ditemukan pada batang yang sama (Sallam et al, 2021). Setiap jenis penggerek mempunyai tanda serangan yang khas pada lubang gerek, lorong gerek dan kerusakan pada batang tebu (Achadian et al, 2011).…”

“…Peningkatan populasi hama penggerek dipengaruhi oleh beberapa faktor, diantaranya varietas yang ditanam (Sallam et al, 2014), curah hujan (Samoedi and Wirioatmodjo, 1986;Sallam et al, 2021), aplikasi pupuk N berlebih (Goebel et al, 2005), populasi musuh alami hama (Sallam et al, 2010) dan teknik budidaya (Kfir et al, 2002;Leslie, 2004). Pada penelitian ini tampak pengaruh curah hujan terhadap pola serangan hama penggerek batang.…”

Comparative Studies on Quantity and Quality of Pests’ Incursion Sugarcane grown at Rahim Yar Khan Pakistan

“…Lepidopteran stalk borers are the chief pests that strictly damage sugarcane in main sugarcane producing countries. Larvae bore either into the shoots or stalks of sugarcane, harshly reducing both yield and sugar content [2][3][4][5].The sugarcane crop possesses an incredible potential for the production of a wide range of carbon-chain molecules, higher proportion of lignin, cellulose and hemicelluloses than any other C4 crops, such as sorghum and maize [6].Today multi-usage crop helping a variety of segments like food and pharmaceuticals to energy production. Recent advances in industrial biotechnology are providing new opportunities to capture additional revenue streams from bioproducts (e.g.…”