NDLI: Releases of Irradiated Moths to Suppress Wild Populations of Eldana Saccharina Walker (lepidoptera: Pyralidae)

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Releases of Irradiated Moths to Suppress Wild Populations of Eldana Saccharina Walker (lepidoptera: Pyralidae)

Content Provider	Semantic Scholar
Author	Mudavanhu, Pride Conlong, Des E. Addison, P.
Copyright Year	2014
Abstract	Pilot shade house trials were conducted to measure the impact of sustained releases of partially sterile adult males of the stalk borer Eldana saccharina Walker (Lepidoptera: Pyralidae) at an over-flooding moth ratio of 10T:1U (treated to untreated). Their efficacy in stopping E. saccharina incursions and suppressing wild populations was measured prior to testing under true season-long and area-wide conditions. Results from the current study demonstrated that releasing partially irradiated (200 Gy) adult male moths at the abovementioned release rate significantly reduced sugarcane stalk damage, and also reduced the number of fertile progeny from F1 to succeeding generations in a stable E. saccharina population initiated in a cage-house. There were more damaged internodes per stalk in the control than in the sugarcane receiving regular releases of partially sterile male moths. Overall, there were significantly more undamaged stalks in the treated sugarcane than the untreated control. Furthermore, there were significantly more larvae per stalk retrieved from the control than from the treated sugarcane, suggesting that the sustained release of steriles was efficacious in reducing emergence of fertile larvae in the succeeding generations. The results of this study indicate that there is considerable scope for the Sterile Insect Technique (SIT) against this damaging pest of sugarcane.
Starting Page	328
Ending Page	333
Page Count	6
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.sasta.co.za/wp-content/uploads/Proceedings/2010s/2013-52Mudavanhu.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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