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| Borges,Miguel; Zhang,Aijun; Camp,Mary J.; Aldrich,Jeffrey R.. |
| The brown stink bug, Euschistus servus (Say), is abundant throughout most of eastern North America and is commonly found feeding on soybean, mullein, beans, tomatoes, peas, cotton, wheat, corn, tobacco and peach. Color change in E. servus from green to reddish-brown was shown to be an indicator of reproductive diapause. Reddish-brown insects lived longer than green individuals, females laid no eggs, and males did not produce pheromone. The high mortality registered for the green colony of E. servus adults was associated with the physiological cost associated with reproduction. The main pheromone component of this species is methyl 2E,4Z-decadienoate, in agreement with previous work. The first generation of this species develops on noncrop hosts and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Coloration; Pheromone; Methyl 2E; 4Z-decadienoate. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000100028 |
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| Torres,Jorge B.; Zanuncio,José C.; Saavedra,Jorge L.D.; Aldrich,Jeffrey R.. |
| Estudou-se o efeito do extrato de glândulas dorso-abdominais, produtoras de feromônio sexual de Podisus nigrispinus (Dallas) e de Supputius cincticeps (Stal) (Heteroptera: Pentatomidae), adicionadas em dieta artificial, como atrativo e estimulante alimentar para ninfas desses predadores, comparado com ninfas criadas somente em dieta artificial ou com presas alternativas. O extrato de glândulas pincelado sobre a dieta artificial, apresentou atratividade em 88% de ninfas de P. nigrispinus alimentando-se desta dieta, semelhante àquelas sobre dieta pincelada e contendo o extrato em mistura (10% v/p) (84%) e aquelas alimentadas com a presa alternativa Musca domestica L. (Diptera: Muscidae) (100%). S. cincticeps, apresentou 60 e 56% de ninfas alimentando-se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Percevejos predadores; Criação massal. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000300008 |
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| Aldrich,Jeffrey R.; Zanuncio,José C.; Vilela,Evaldo F.; Torres,Jorge B.; Cave,Ronald D.. |
| Traps baited with synthetic pheromones for either Podisus nigrispinus (Dallas) or Supputius cincticeps (Stäl) were field tested at the Universidade Federal de Viçosa, Minas Gerais, Brazil, beginning September 7, 1995. No P. nigrispinus were caught but, in September and October, several adult males and females of P. distinctus (Stäl) were caught along with a few adults of S. cincticeps and two females of a tachinid fly parasitoid, Cylindromyia atra Roeder. Chemical analysis of the pheromone gland extract of P. distinctus males indicated that this species produces a pheromone containing the major compounds of P. nigrispinus and S. cincticeps. Therefore, on November 6 a set of traps was baited with the pheromones of both P. nigrispinus and S. cincticeps, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hemiptera; Tachinidae; Biological control; Attractant; Kairomone. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100001 |
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| Zhang,Aijun; Borges,Miguel; Aldrich,Jeffrey R.; Camp,Mary. |
| Volatiles compounds collected from the male Neotropical brown stink bug, Euschistus heros (F.), a serious Central and South American soybean pest, have been reevaluated. The proportion of three methyl esters is found to be quite different from previous study. A new blend is proposed as the male-produced stimulatory volatiles based on gas chromatographic-electroantennographic detection (GC-EAD) techniques. The three GC-EAD-active components reproducibly found in volatiles collected from males are methyl (2E,4Z)-decadienoate (53%), methyl 2,6,10-trimethyldodecanoate (3%), and methyl 2,6,10-trimethyltridecanoate (44%) respectively. Males of this hemipteran species needed to reach an age of ~15 days to produce enough male-specific compounds to be detected by... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Soybean pest stimulatory volatile methyl (2E; 4Z)-decadienoate methyl 2; 6; 10-trimethyldodecanoate methyl 2; 6; 10-trimethyltridecanoate electroantennographic detection. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400025 |
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