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| Silva,Jovenil José da; Arruda-Gatti,Iara Cintra de; Mikami,Adriana Yatie; Pissinati,Aline; Panizzi,Antônio Ricardo; Ventura,Mauricio Ursi. |
| The alydid bug parvus (Westwood) is not easily detected in the field and the discovery of attractants may be a suitable way to monitor this species. The attraction of N. parvus to traps (transparent, transparent green and yellow) baited with cow urine and ammonia was studied in two field trials. Traps were placed near a terrace with pigeon pea plants (Cajanus cajan L.). Tap water, NaCl 10% aqueous solution (w/v), cow urine, and ammonia (NH4OH 1% aqueous solution) were tested as attractants in yellow, transparent and transparent green traps. Green traps baited with cow urine caught more bugs than yellow and transparent traps (3.2 and 7.2 times more, respectively), and more bugs than traps of the same color with just water (no captures) or NH4OH solution... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Semiochemical; Attractant; Trap color. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100012 |
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| Manfredi-Coimbra,Silvana; Silva,Jovenil José da; Chocorosqui,Viviane Ribeiro; Panizzi,Antônio Ricardo. |
| O objetivo deste estudo foi avaliar a reação de dois cultivares de trigo aos danos causados por percevejos adultos de Dichelops melacanthus (Dallas), confinados sobre a cultura a partir do início do perfilhamento. Foram comparados os efeitos de diferentes níveis de infestação (0, 2, 4, 8 e 16 percevejos m-2) sobre o número de perfilhos m-2, número de espigas m-2, peso de mil sementes (g) e rendimento (kg ha-1) das cultivares BR 18' e BRS 193' de trigo, em Londrina, PR. O número de perfilhos m-2 cresceu linearmente para a cv. BR 18' e de forma quadrática para a cv. BRS 193' com o aumento do número de percevejos m-2; o número de espigas m-2, o peso de mil sementes, e o rendimento decresceram de forma linear com o aumento do nível de infestação para as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Plantio direto; Rendimento; Nível de infestação. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000600003 |
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| Roza- Gomes,Margarida Flores; Salvadori,José Roberto; Pereira,Paulo Roberto Valle da Silva; Panizzi,Antônio Ricardo. |
| Neste estudo, foram caracterizadas as injúrias causadas pelos percevejos Dichelops furcatus (F.), Nezara viridula (L.) e Euschistus heros (F.), em comparação com D. melacanthus (Dallas), em plântulas de milho (Zea mays L.). O experimento foi realizado em vasos, em ambiente de telado, em delineamento inteiramente casualizado, com cinco tratamentos (infestação com percevejos de quatro espécies e testemunha, sem infestação) em oito repetições. Na fase vegetativa do milho (estádio V1 até V3), D. melacanthus, na densidade de um adulto/planta, provocou redução na altura, no número de folhas expandidas, na massa seca das raízes e provocou injúrias no cartucho e/ou enrolamento das folhas centrais da planta. D. furcatus, E. heros e N. viridula causaram injúrias,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nezara viridula; Euschistus heros; Dichelops melacanthus; Dichelops furcatus; Pentatomidae; Zea mays. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000700001 |
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| Ventura,Maurício Ursi; Panizzi,Antônio Ricardo. |
| The external morphology of the sensilla, including pores and permeable points on the cuticle of the antennae of adults of Neomegalotomus parvus (West.) (Heteroptera: Alydidae) was investigated with regard to their olfactory function. Behavioural evidence of olfaction, the importance of the different antennal segments in locating the host under still-air, and the responses of the insects to plants' scents and to pheromones in wind assays were also studied. With the scanning electronic microscope mechanoreceptor sensilla were found on the four segments of the antennae of N. parvus. The density of the sensilla was greater on the 4th segment. On the apical segment, sensilla with olfactory morphological traits were observed. Bugs with intact antennae located... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sensilla; Host plant; Behaviour; Antenna. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500012 |
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| Panizzi,Antônio Ricardo; Cardoso,Shirlei Regina; Chocorosqui,Viviane Ribeiro. |
| Lanceleaf crotalaria, Crotalaria lanceolata E. Mey (Leguminosae) was found hosting the small green stink bug, Piezodorus guildinii (Westwood), in Paraná State, Brazil. In the laboratory, nymphs showed less mortality when fed on immature pods of crotalaria (64%) than when fed on immature pods of soybean, Glycine max (L.) Merrill (88%). From 2nd stadium to adult, nymphs required less time to complete development on crotalaria (mean of females and males = 18.4 days) than on soybean (21.5 days). Fresh body weight at adult emergence was greater on crotalaria (mean of females and males = 51.4 mg) than on soybean (42.2 mg). Adult P. guildinii tended to live longer on crotalaria than on soybean. Mean adult longevity was 34.6 days on crotalaria, and 28.8 days on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroptera; Pentatomidae; Stink bug; Crotalaria lanceolata; Glycine max; Food effect; Biology. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100009 |
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| Ventura,Maurício Ursi; Panizzi,Antônio Ricardo. |
| Interactions between Neomegalotomus parvus (Westwood) (Coreoidea: Heteroptera: Alydidae) and host plants were investigated including population monitoring throughout the year, gregarious behavior in the field, and oviposition preference among host plants and one non-host plant in field cages. Cowpea, Vigna unguiculata (L.) Walp., soybean, Glycine max (L.) Mill. cv. BR 37, pigeon pea, Cajanus cajan (L.) Mill., pigeon pea cv. Anão, and lablab, Dolichos lablab L. were monitored in the field. N. parvus was found on host plants during 11 months. The shortest period of occurrence was observed on soybean and the longest on lablab. Insects were found mostly on mature pods. Contagious distribution (negative bionomial) was detected, characterizing the aggregation.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemiptera; Alydidae; Host plants; Phenology; Oviposition. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100006 |
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