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Registros recuperados: 110 | |
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Silva,Alexandre de Almeida e; Varanda,Elenice Mouro; Rassini,Joaquim Bartolomeu. |
It is important to understand the effects of weather, insect density and plant cultivar on insect abundance to predict and prevent crop production loss. The present work investigated the influence of such factors on aphid in alfalfa during one year (short term). Data was collected from September/1997 to August/1998 at Canchin Farm (CCPSE-EMBRAPA), São Carlos, State of São Paulo, Brazil. Weather conditions had, in general, little effect on the variation of aphid populations, but Therioaphis maculata abundance was negatively correlated to humidity. Moreover, high maximum temperatures and low levels of rainfall possible favored T. maculata high abundance on Crioula and P3 cultivars. Therefore, appropriate management of this species is required during hot and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbivory; Hemiptera; Medicago sativa; Resistance; Population dynamics. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052007000200012 |
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Rodrigues,Sérgio Roberto; Oliveira,Harley Nonato de; Santos,Wilson Teixeira dos; Abot,Alfredo Raul. |
Pachycoris torridus (Hemiptera: Scutelleridae) é relacionado como uma praga de frutos e de sementes na cultura do pinhão-manso (Jatropha curcas L.). Este trabalho teve por objetivo estudar os aspectos biológicos e os danos que essa espécie pode ocasionar nessa cultura. Ovos, ninfas e adultos de P. torridus foram coletados e levados a laboratório, onde foram mantidos em câmaras climatizadas para estudo de aspectos biológicos. Para avaliação dos danos, adultos foram confinados em gaiolas no campo, contendo frutos em desenvolvimento. As posturas obtidas tinham em média 57,6 ovos. O período embrionário durou 12,7 dias, enquanto as ninfas de primeiro ao quinto ínstar duraram, respectivamente, 8,1; 10,9; 9,7; 11,6 e 11,7 dias. Da fase de ovo a adulto, o ciclo... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Biologia; Euphorbiaceae; Hemiptera; Scutelleridae. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000200015 |
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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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Criado,Paulo Ricardo; Belda Junior,Walter; Criado,Roberta Fachini Jardim; Silva,Roberta Vasconcelos e; Vasconcellos,Cidia. |
Bedbugs have been known as a human parasite for thousands of years, but scientific studies about this insect are recent and limited. Cimex lectularius, the common bedbug, was a well-known parasite in human dwellings until the end of the Second World War. Nowadays, bedbugs are considered uncommon in the industrialized world. Anecdotal reports suggest that bedbugs are getting more common in the United States, Canada, and United Kingdom. In Brazil, there are few reports about bedbug infestations in the literature. The aim of this article was to alert physicians, especially in Brazil, about this ectoparasitosis, including aspects of the bedbug biology, their parasitism in human host, treatment and prophylaxis. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemiptera; Bedbugs; Cimex lectularius; Pyrethrins; DDT. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000100014 |
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Garcia,Maria José De Marchi; Fischer,Ivan Herman; Lourenção,André Luiz; Lima,Aurino Florencio de; Bueno,Regiane Cristina Oliveira de Freitas; Souza,Efrain Santana. |
No Brasil, é restrito o conhecimento sobre distribuição geográfica e plantas hospedeiras de moscas-brancas (Hemiptera: Aleyrodidae), principalmente em plantas cultivadas. Nesta comunicação, é registrada a ocorrência de Aleurodicus mirabilis (Cockerell, 1898) em altas infestações em fruta-do-conde (Annona squamosa Linnaeus, 1753) no estado de São Paulo, Brasil. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aleyrodidae; Hemiptera; Aleurodicus mirabilis; Sternorrhyncha; Annonaceae. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001200003 |
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Registros recuperados: 110 | |
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