|
|
|
| Registros recuperados: 1.445 | |
|
| |
|
|
| Garcia,Maria A.; Oliveira,Lenita J.; Oliveira,Maria C.N. de. |
| The aggregation behavior of Phyllophaga cuyabana (Moser) was studied and the hypothesis that the cluster distribution of larvae of this pest into the soil is related to the sites where females from the previous generation had aggregated for mating was investigated. Field observations and greenhouse experiments carried out in Londrina County, State of Paraná, South Brazil, indicated that: a) during flight, adult females of P. cuyabana select plants, which are more conspicuous for landing and/or attracting males; b) tall plants, nearby soybean fields, might be preferred because female adults do not move far from the mating sites before digging themselves into the soil to lay eggs; c) high density of eggs and larvae occurs close to the adult aggregation... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Glycine max; Scarabaeoidea; Soil pest; Spatial distribution. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400002 |
| |
|
|
| Depieri,Rogério A; Siqueira,Fábio; Panizzi,Antônio R. |
| Studies were conducted to test the effect of age and food sources on wear of the mandibular teeth of the phytophagous pentatomid, Euschistus heros (F.). The total length (µm) of the area bearing the mandibular teeth, the length of the 1st tooth, and the height of the 2nd tooth for teneral (< 1 day-old) adults were significantly greater than that of adults fed on natural [green bean, Phaseolus vulgaris pods, raw shelled peanuts, Arachis hypogaea, and mature soybean, Glycine max seeds] for 30 or 60 days. Adults fed on artificial dry diet showed, in general, similar results to those of teneral adults. Force (Newtons) required penetrating the natural foods was significantly greater than that required penetrating the artificial diet. The greater hardness of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Euschistus heros; Mouthpart; Morphology; Penetration resistance; Diet. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600017 |
| |
|
|
| Francisco,Flávio de O.; Brito,Rute M.; Arias,Maria C.. |
| In the present study we compare genetic characteristics (allele diversity and observed heterozygosity) of microsatellite loci, from three stingless bee species (Plebeia remota Holmberg, Partamona mulata Moure In Camargo and Partamona helleri Friese), amplified by using heterospecific primers originally designed for Melipona bicolor Lepeletier and Scaptotrigona postica Latreille. We analyzed 360 individuals of P. remota from 72 nests, 58 individuals of P. mulata from 58 nests, and 47 individuals of P. helleri from 47 nests. The three species studied showed low level of polymorphism for the loci amplified with primers derived from M. bicolor. However, for the loci amplified with primers derived from S. postica, only P. remota presented low level of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plebeia remota; Partamona mulata; Partamona helleri; Heterozygosity; Polymorphism. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000500011 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Ribeiro,Paulina de A; Sujii,Edison R; Diniz,Ivone R; Medeiros,Maria A de; Salgado-Labouriau,Maria L; Branco,Marina C; Pires,Carmen S S; Fontes,Eliana M G. |
| The boll weevil causes serious damage to the cotton crop in South America. Several studies have been published on this pest, but its phenology and behavior under the tropical conditions prevailing in Brazil are not well-known. In this study the feeding behavior and main food sources of adult boll weevils throughout the year in Central Brazil was investigated. The digestive tract contents of insects captured in pheromone traps in two cotton fields and two areas of native vegetation (gallery forest and cerrado sensu stricto) were analyzed. The insect was captured all through the year only in the cerrado. It fed on pollen of 19 different plant families, on Pteridophyta and fungi spores and algae cysts. Simpson Index test showed that the cerrado provided... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pollen; Cerrado; Cotton; Gallery forest; Host plant. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100005 |
| |
|
| |
|
| |
|
| |
|
|
| Scofield,A; Bahia,M; Martins,AL; Góes-Cavalcante,G; Martins,TF; Labruna,MB. |
| The tick Amblyomma dissimile Koch feeds preferentially on reptiles (Squamata), although amphibians (Anura) also seem to be important hosts. We report an A. dissimile nymph infesting a blue-winged macaw, Primolius maracana, held in captivity in the Mangal das Garças Park, State of Pará, Brazil. Environmental observations suggest that free-living iguanas (Iguana iguana), which used to walk on the bird enclosure in the park, were the source of the A. dissimile tick that infested the blue-winged macaw. We provide the second world record of a bird host for A. dissimile, and the first bird record for this species in South America. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird; Macaw; Tick. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000400017 |
| |
|
|
| Fernandes,Marcos G.; Busoli,Antonio C.; Barbosa,José C.. |
| Para implantar o manejo apropriado do curuquerê-do-algodoeiro, é necessário construir um plano de amostragem que permita estimar, de forma rápida e precisa, a densidade populacional da praga. Esta pesquisa objetivou determinar o plano de amostragem seqüencial de Alabama argillacea (Hübner) em algodoeiro, cultivar CNPA ITA-90. Os dados foram coletados no ano agrícola de 1998/99 na Fazenda Itamarati Sul S/A, localizada no município de Ponta Porã, MS, em três áreas de 10.000 m² cada. As áreas amostrais foram compostas de 100 parcelas de 100 m². O número de lagartas pequenas, médias e grandes foi determinado semanalmente em cinco plantas tomadas ao acaso por parcela. Após verificado que todos os instares das lagartas estavam distribuídos de acordo com o modelo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Gossypium hirsutum; Curuquerê-do-algodoeiro; Distribuição Binomial Negativa. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100017 |
| |
|
|
| Pereira,Marcelo F.A.; Boiça Jr,Arlindo L.; Barbosa,José C.. |
| A amostragem seqüencial (presença-ausência) vem sendo utilizada no manejo integrado de pragas pela rapidez e eficiência, principalmente, para pragas que são difíceis de serem quantificadas. Para o manejo de Bemisia tabaci (Genn.) biótipo B foi desenvolvido um plano de amostragem seqüencial, com base na presença ou ausência da praga em plantas de feijoeiro (Phaseolus vulgaris L.), independente do seu número. Os experimentos foram conduzidos nas épocas de semeadura "das águas" (2000/01) e "da seca" (2002), em Jaboticabal - SP, utilizando-se área de 1 ha, subdividida em 100 parcelas iguais de 100 m² (10 x 10 m). Em cada parcela foram avaliadas 10 plantas ao acaso, considerando-se somente se a mosca-branca estava ou não presente. O nível de dano econômico... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mosca-branca; Manejo integrado de pragas; Distribuição binomial positiva; Amostragem. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400016 |
| |
|
|
| FARIAS,PAULO R. SILVA; BARBOSA,JOSÉ C.; BUSOLI,ANTÔNIO C.. |
| A amostragem seqüencial (presença-ausência), nos últimos anos, vem ocupando espaço importante na amostragem de pragas, particularmente quando estas são difíceis de serem enumeradas. Para solucionar esse problema, no caso de Spodoptera frugiperda (J. E. Smith), foi desenvolvido um plano de amostragem seqüencial, onde a unidade amostral é examinada, levando-se em conta somente se a lagarta está ou não presente, independentemente do número. O experimento foi instalado em Jaboticabal, SP, utilizando-se três campos de 0,5 ha cada, subdivididos em 100 parcelas de 50 m² (5 x 10 m). Cada parcela constituiu uma unidade amostral, identificada por um número de 1 a 100. Na construção do plano de amostragem, foi utilizado o nível de dano econômico de 20%. A partir dos... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Insecta; Plano de amostragem; Lagarta-do-cartucho; Zea mays. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400026 |
| |
|
|
| Desuó,IC; Souza-Galheico,CB; Shima,SN; Santos,GMM; Cruz,J D; Bichara Filho,CC; Dias,CTS. |
| The tribe Epiponini comprehends the swarm-founding Neotropical wasps, with several species endemic to Brazil, which are extremely important in studies of social evolution of wasps. The Epiponini diverge in several ways from the definitions of high eusociality, since caste syndromes range from species without morphological caste differentiation to those with complete caste dimorphism, and all species are polygynous. Frequently, indirect studies based on morphometry and physiology are the only solutions to collect data regarding the natural history and caste system in this tribe, since most species are extremely aggressive and build enveloped nests, usually in places of difficult access. We analyzed morphological parameters in seven colonies of the Epiponini... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Social insect; Morphological difference; Epiponini. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600004 |
| |
|
|
| Querino,Ranyse B; Hamada,Neusa. |
| The tritrophic interaction Argia insipida Hagen in Selys, the Trichogrammatidae egg parasitoid Pseudoligosita longifrangiata (Viggiani) and the host plant Tonina fluviatilis (Eriocaulacea), which is a substrate for egg deposition of A.insipid, was investigated. The study locality was a stream with rapids where macrophytes such as T. fluviatilis grow. Information on aquatic egg parasitoids is scarce. This is the first record of egg parasitism of A. insipida by P. longifrangiata in Brazil, and the first record of occurrence of P. longifrangiata in the country. Parasitized and unparasitized eggs of A. insipida were observed only on leaves 0-5 cm below the water surface. The maximum number of pairs of A. insipida laying eggs in the study area was observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic insect; Damselfly; Pseudoligosita; Trichogrammatidae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000300008 |
| |
|
|
| Noll,Fernando B; Gomes,Bruno. |
| In this work, an alternative method for the capture of neotropical social wasps is described, which may supplement or replace the procedures commonly used in wasp surveys. The method was tested in a seasonal semideciduous forest in the northwest of São Paulo State, collecting a larger number of species and a greater abundance of social wasps and of other Hymenoptera than other methods also used in the same area, namely Malaise traps, bottle traps and meat baits. The proposed method was adapted from Wille (1962) who used an attractive solution based on water and honey for bee attraction. In here, the attractive solution was based on water, salt and crystal sugar, and was effective in attracting bees and solitary wasps, but mainly social wasps, which is the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Epiponini; Survey; Semidecidual seasonal forest. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400006 |
| |
|
|
| Saluso,A; Xavier,L; Silva,FAC; Panizzi,AR. |
| This is the first record on the invasion of the Neotropical brown stink bug, Euschistus heros (F.) in Paraná County (latitude 31º 51' 9.6" S, longitude 60º 32' 11.2" W), Entre Ríos province, Argentina. Five adults were intercepted in 2009/2010, one in crop residues and four on soybean fields. The expanding range in the distribution of E. heros in the Southern Hemisphere is believed to be due to the increased commercial trade among countries, increase in the area cultivated with soybean, and the adoption of no-tillage cropping systems. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Heteroptera; Soybean. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600011 |
| |
| Registros recuperados: 1.445 | |
|
|
|
