Imperial College London
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Dr C M (Tilly) Collins

Faculty of Natural Sciences, Centre for Environmental Policy

Senior Teaching Fellow
 
 
 
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Contact

 

+44 (0)20 7594 9301t.collins Website

 
 
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Location

 

110aWeeks BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Aqueel:2013:10.1111/1744-7917.12019,
author = {Aqueel, MA and Collins, CM and Raza, AM and Shehbaz, M and Tariq, M and Leather, SR},
doi = {10.1111/1744-7917.12019},
journal = {Insect Science},
title = {Effect of plant nutrition on aphid size, prey consumption and life history characteristics of green lacewing},
url = {http://dx.doi.org/10.1111/1744-7917.12019},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Plant quality can directly and indirectly affect the third trophic level. The predation by all the instars of green lacewing, Chrysoperla carnea (S.) (Neuroptera: Chrysopidae) on the cereal aphids, Rhopalosiphum padi (L.) and Sitobion avenae (F.) at varying nitrogen fertilizer levels was calculated under laboratory conditions. Wheat plants were grown on four nitrogen fertilizer levels and aphids were fed on these plants and subsequently offered as food to the C. carnea. Aphid densities of 10, 30 and 90 were offered to 1st, 2nd and 3rd instar larvae of green lacewing. Increased nitrogen application improved nitrogen contents of the plants and also the body weight of cereal aphids feeding on them. Aphid consumption by green lacewings was reduced with the increase in nitrogen content in the host plants of aphids. Predation of both aphid species by first, second and third instars larvae of C. carnea was highest on aphids reared on plants with the lowest rate of fertilization, suggesting a compensatory consumption to overcome reduced biomass (lower aphid size). Total biomass devoured by C. carnea on all nitrogen fertilizer treatments was not statistically different. Additionally, the heavier host prey influenced by the plant nutrition had an effect on the life history characteristics of green lacewings. The larval duration, pupal weight, pupal duration, fecundity and male and female longevity were significantly affected by the level of nitrogen fertilization to the aphid's host plants, except for pupal duration when fed on S. avenae. This study showed that quantity of prey supplied to the larvae affects the prey consumption and thereafter the life history characteristics of green lacewings.
AU  - Aqueel,MA
AU  - Collins,CM
AU  - Raza,AM
AU  - Shehbaz,M
AU  - Tariq,M
AU  - Leather,SR
DO  - 10.1111/1744-7917.12019
PY  - 2013///
TI  - Effect of plant nutrition on aphid size, prey consumption and life history characteristics of green lacewing
T2  - Insect Science
UR  - http://dx.doi.org/10.1111/1744-7917.12019
ER  -
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