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1 April 2002 Electroantennogram Responses of Nilaparvata lugens (Homoptera: Delphacidae) to Plant Volatile Compounds
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Abstract

Electroantennogram (EAG) recordings were made from the plaque organ receptors of the rice brown plant hopper, Nilaparvata lugens (Stål). The receptors of the distal plaque organ of both male and female hoppers responded to the air from above chopped rice plants, and those of females gave a larger response. Female hoppers, tested with 27 plant volatiles, gave dose-related responses to 16 of the compounds, including a range of green leaf volatiles. The aliphatic aldehydes hexanal and (E)-2-hexenal elicited a larger response than a range of green leaf alcohols. Of the remaining compounds, acetophenone, benzaldehyde, ethyl and methyl benzoate, and amyl and isoamyl acetate were among the most effective in eliciting responses. Receptor recovery times showed some variation between compounds. A comparison of the dose-related response of 16 compounds in paraffin oil and in pentane showed that considerably larger responses were recorded when the highly volatile solvent pentane was used.

Young Nam Youn "Electroantennogram Responses of Nilaparvata lugens (Homoptera: Delphacidae) to Plant Volatile Compounds," Journal of Economic Entomology 95(2), 269-277, (1 April 2002). https://doi.org/10.1603/0022-0493-95.2.269
Received: 15 March 1999; Accepted: 1 December 1999; Published: 1 April 2002
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