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Previous infestation with P sammotettix alienus on spring wheat seedlings decreased the fitness of S itobion avenae in a subsequent infestation
Author(s) -
Luo Kun,
Thieme Thomas,
Hu Zuqing,
Hu Xiangshun,
Zhang Gaisheng,
Zhao Huiyan
Publication year - 2016
Publication title -
agricultural and forest entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.755
H-Index - 55
eISSN - 1461-9563
pISSN - 1461-9555
DOI - 10.1111/afe.12136
Subject(s) - sitobion avenae , biology , aphididae , infestation , aphid , leafhopper , agronomy , cultivar , population , homoptera , nymph , hemiptera , horticulture , pest analysis , botany , demography , sociology
Previous feeding by herbivores may influence the performance of other herbivores by altering the morphological and physiological properties of the shared host. The present study aimed to examine the fitness of the apterous aphid S itobion avenae (Fabricius) (Hemiptera: Aphididae) when fed spring wheat that was previously attacked by the leafhopper P sammotettix alienus Dahlbom (Hemiptera: Cicadellidae), with an evaluation of the differences in aphid weight ( WD ), development time ( D ), mean relative growth rate ( MRGR ), daily production of nymphs ( MDNP ) and intrinsic rate of population increase ( r m ) under controlled greenhouse conditions. For the S. avenae reared on the two spring wheat cultivars that were previously infested with P. alienus , the WD and the MRGR decreased significantly. The S. avenae reared on the previously infested cv. Leguan had significantly prolonged D values and a lowered r m , whereas these parameters did not differ significantly when S. avenae was reared on the cv. B obwhite . Overall, the fitness of the aphid S. avenae was adversely affected when reared on the two spring wheat cultivars that were previously infested with P. alienus .