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LAUMANN, R. A.; BORGES, M.; ALDRICH, J. R.; KHRIMIAN, A.; MORAES, M. C. B.. |
The Neotropical broad-headed bug, Neomegalotomus parvus (Westwood), is adapted to various leguminous crops and is considered a pest in common bean and soybean. The chemical communication of this species was studied in order to identify an attractant pheromone. Males and females of N. parvus produce several short-chain esters and acids, and their antennae showed electrophysiological responses to ?ve of these compounds, three common to both sexes (hexyl butanoate, 4-methylhexyl butanoate, and hexyl hexanoate), and two female-speci?c compounds (4-methylhexyl pentanoate and hexyl pentanoate). Both aeration extracts of females and a solution containing ?ve synthetic compounds mimicking the natural blend were attractive to males and females N. parvus in a... |
Tipo: Separatas |
Palavras-chave: Neotropical broad-headed bug; Feromônio; Praga. |
Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/951149 |
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HIROSE, E.; PANIZZI, A. R.; SOUZA, J. T. de; CATTELAN, A. J.; ALDRICH, J. R.. |
Laboratory studies with the southern green stink bug, Nezara viridula (L.), indicated the presence of bacteria Klebsiella pneumoniae (Schroeter) and Enterococcus faecalis (Andrewes & Horder) in the crop/stomach (ventriculus 1-3; V1-V3), and possibly Pantoea sp. in the gastric caeca (ventriculus 4; V4). Culturable bacteria were most abundant in V1-V3, and their abundance was drastically reduced in V4. The variable pH in the gut did not affect the presence of bacteria. Elimination of bacteria from the gut, by using the antibiotic kanamicin, did not affect nymphal developmental time or cause mortality, but it did cause reduced weight at adult emergence. |
Tipo: Separatas |
Palavras-chave: Percevejo; Nezara Viridula; Bactéria. |
Ano: 2006 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/469354 |
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BORGES, M.; BIRKETT, M.; ALDRICH, J. R.; OLIVER, J. E.; CHIBA, M.; MURATA, Y.; LAUMANN, R. A.; BARRIGOSSI, J. A.; PICKETT, J. A.; MORAES, M. C. B.. |
Tipo: Separatas |
Palavras-chave: Semioquímico; Zingiberenol; Methylcyclohex; Allomone. |
Ano: 2006 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/187723 |
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