ARS | Publication request: Volatiles induction in rice stink bug host grasses and rice plants

Submitted to: Extension Publications
Publication Type: Experiment Station
Publication Acceptance Date: July 1, 2006
Publication Date: August 8, 2006
Citation: Singh, N., Bryant, R.J., Bernhardt, J.L. 2006. Volatiles induction in rice stink bug host grasses and rice plants. Arkansas Agricultural Experiment Station Research Series 550: 178-182.

Technical Abstract: Rice stink bug (RSB), Oebalus pugnax F., is an important pest of heading rice in the United States. Little is known about plant volatiles production following herbivory by the rice stink bug. RSB feeding induced volatiles production in different RSB host grasses and rice varieties, and may help explain RSB movement to heading rice. Limonene and methyl salicylate (MeSA) were found in varying amounts from panicles of host grasses and rice. RSB feeding induced caryophyllene production from panicles of only rice and vaseygrass. Limonene was produced in higher amounts in the RSB-resistant rice cultivar ‘Kaybonnet’ than in more RSB-susceptible ‘Cocodrie’ and ‘Bengal’. Future studies should be conducted to assess effects of limonene and MeSA on feeding duration and development of RSB and note levels of these volatiles in other rice varieties.