Roles of olfaction and vision in orientation behavior of adult Campylomma chinensis Schuh (Hemiptera:Miridae) toward Lantana plants (Verbanaceae)

Abstract

Abstract: Investigations were carried out on the orientation behavior of adult Campylomma chinensis Schuh (Hemiptera:Miridae) toward plant hosts Lantana camara,L.camara cv.‘Flava',and L.montevidensis (Spreng.) Briq.(Verbanaceae).Surveys on three Lantana plants showed that the distribution of C.chinensis in inflorescences was not related to floral color (partial correlation coefficient was 0.240,P=0.147,n=40),but to the number of Thrips hawiiensis Morgan (partial correlation coefficient was 0.512,P<0.0001,n=40) and the flowers per inflorescence (partial correlation coefficient was 0.451,P<0.0001,n=40).In a colour preference experiment,no adult C.chinensis attracted to six different colour plates in longan field.The testing results of four-armed olfactometer indicated that adult C.chinensis had a significantly higher preference for L.camara.It was concluded that olfactory stimuli played an important role in searching for plant hosts of C.chinensis.Solid phase micro-extraction (SPME) and GC-MS were employed to analyze the volatiles compounds of Lantana,and seven same chemical constituents were detected from the volatiles of three Lantana plants inflorescence.

Key words: Campylomma chinensis, Lantana camara, Volatiles, Olfactory stimuli, Floral colors, Visual stimuli

CLC Number:

Q968.1

WU Weijian, GAO Zezheng, YU Jinyong, LIANG Guangwen . Roles of olfaction and vision in orientation behavior of adult Campylomma chinensis Schuh (Hemiptera:Miridae) toward Lantana plants (Verbanaceae)[J]. Chinese Journal of Applied Ecology, 2005, 16(7): 1322-1325.

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