<b>Larval development and predatory capacity of <em>Cycloneda sanguinea</em> (L.) and <em>Hippodamia convergens</em> Guérin-Men. fed on <em>Aphis gossypii</em> glover on cotton cultivars</b> - DOI: 10.4025/actasciagron.v26i2.1892
Abstract
The development and predatory capacity of C. sanguinea and H. convergens fed with A. gossypii on cotton plants in greenhouse was evaluated. Antares, CNPA 7H and DeltaOpal cultivars, at 30 days after emergence, respectivelly, glabrous, hirsute and pilose were infested with A. gossypii. Five days after, one larvae of C. sanguinea or H. convergens was released by plant and the development of these predators was observed daily. For the determination of population reduction of A. gossypii by the lady beetles, each plant at 30 days after emergence was infested with 100 adult aphids. After 2 days, the number of A. gossypii by plant was evaluated and one adult female of each one species of lady bird beetle by plant was released. The trichomes of cotton cultivars did not influence on the development period and predatory capacity of the lady bird beetles in greenhouse. C. sanguinea reduced on average 93.5% the population of the aphid on cultivars, while H. convergens caused 86,9% of population reductionDownloads
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Published
2008-04-11
How to Cite
Boiça Junior, A. L., Santos, T. M. dos, & Kuranishi, A. K. (2008). <b>Larval development and predatory capacity of <em>Cycloneda sanguinea</em> (L.) and <em>Hippodamia convergens</em> Guérin-Men. fed on <em>Aphis gossypii</em> glover on cotton cultivars</b> - DOI: 10.4025/actasciagron.v26i2.1892. Acta Scientiarum. Agronomy, 26(2), 239-244. https://doi.org/10.4025/actasciagron.v26i2.1892
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Agronomy
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