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Search Results: 1 - 10 of 564047 matches for " Maxwell M T B;Aguiar-Menezes "
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Diversidade de Coccinellidae (Coleoptera) em plantas aromáticas (Apiaceae) como sítios de sobrevivência e reprodu??o em sistema agroecológico
Lixa, Alice T;Campos, Juliana M;Resende, André L S;Silva, Joice C;Almeida, Maxwell M T B;Aguiar-Menezes, Elen L;
Neotropical Entomology , 2010, DOI: 10.1590/S1519-566X2010000300007
Abstract: studies show that apiaceae may provide concentrated vital resources for predator insects, stimulating their abundance, diversity and persistence in agricultural systems, thereby increasing their efficiency as biological control agents. among the predatory insects, coccinellidae (coleoptera) on many different species both as larvae and adults, complementing their diet with pollen and/or nectar. this study aimed to determine the diversity and relative abundance of coccinellidae species visiting plants of anethum graveolens (dill), coriandrum sativum (coriander) and foeniculum vulgare (sweet fennel) (all apiaceae), particularly in their blooming seasons, and to evaluate the potential of these aromatic species for providing the resources for survivorship and reproduction of coccinelids. coccinellids were collected by removal of samplings from september to october, 2007. besides one unidentified species of chilocorinae, five species of coccinellinae were collected: coleomegilla maculata degeer, coleomegilla quadrifasciata (sch?nherr), cycloneda sanguinea (l.), eriopis connexa (germar) and hippodamia convergens guérin-meneville. dill provided a significant increase in the abundance of coccinellids as compared to coriander and sweet fennel. these aromatic species were used by coccinellids as survival and reproduction sites, providing food resources (pollen and/or prey), shelter for larvae, pupae and adults, and mating and oviposition sites as well.
Primeiro registro de Lipaphis pseudobrassicae Davis (Hemiptera: Aphididae) e sua associa??o com insetos predadores, parasitóides e formigas em couve (Cruciferae) no Brasil
Resende, André L.S.;Silva, Edmilson E.;Silva, Venicio B.;Ribeiro, Raul L.D.;Guerra, José G.M.;Aguiar-Menezes, Elen L.;
Neotropical Entomology , 2006, DOI: 10.1590/S1519-566X2006000400019
Abstract: this study describes the fauna of predator insects, parasitoids and ants associated with aphids on kale (brassica oleracea l. var. acephala d.c.) in organic system. the aphid was identified as lipaphis pseudobrassicae davis, and this is the first record of the species attacking kale in brazil. primary parasitism by diaeretiella sp. and aphidius sp. and hyperparasitism by aphydencyrtus sp., alloxysta sp., pachyneuron sp. and syrphophagus sp. were observed. twenty species of coccinellidae were collected, and eight of them were observed in adult and larval stages attacking the aphid: hyperaspis (hyperaspis) festiva mulsant, which was the most abundant (72.5% of all predator insects obtained), cycloneda sanguinea (l.), eriopis connexa germar, coleomegilla maculata degeer, hippodamia convergens guérin, heterodiomus sp., scymnus (pullus) sp.1 and scymnus (pullus) sp.2. aphidophagous syrphidae larvae collected on leaves of kale infested by l. pseudobrassicae belong to the species allograpta exotica (wiedemann) and ocyptamus gastrostactus (wiedemann). larvae and pupae of syrphidae were parasitized by pachyneuron sp., syrphophagus sp. and diplazon laetatorius fabricius. larvae of chrysopodes sp. were observed feeding on l. pseudobrassicae. species of ants associated with the colony of this aphid were ectatomma quadridens fabricius and pheidole sp.
Effect of Time of Permanence of Host Fruits in the Field on Natural Parasitism of Anastrepha spp. (Diptera: Tephritidae)
Neotropical Entomology , 2002, DOI: 10.1590/S1519-566X2002000400011
Abstract: the present work evaluated the influence of time of permanence of the fruit in the field after its abscission on natural parasitism of anastrepha spp. in february 2000, three trees of spanish prune (spondias purpurea l.) and three guava tree (psidium guajava l.) were selected in the universidade federal rural do rio de janeiro, state of rio de janeiro, brazil. sampling consisted of 250 infested fruits collected per tree. fifty of them were taken immediately to the laboratory in order to obtain tephritidae pupae (0-day exposure). the remaining fruits were divided in four batches and placed in plastic trays on a layer of sand, underneath the tree canopy. every other day, the fruits of one tray were transported to the laboratory (2, 4, 6 and 8 days exposure). a total of 1,123 flies of the genus anastrepha [a. obliqua (macquart) and a. fraterculus (wiedemann)] and 1,880 hymenopteran parasitoids (braconidae, figitidae and pteromalidae) were recovered from spanish prune. from guava, 4,714 adults of anastrepha spp. (a. obliqua, a. fraterculus and a. sororcula zucchi) and 383 hymenopteran parasitoids (braconidae, figitidae and pteromalidae) were obtained. the highest percent parasitism by braconidae (67.2% in spanish prune and 6.4% in guava) was recorded on fruits of 0-day, suggesting that they would prefer the larvae in the fruits while on the tree. for figitidae the higher percent parasitism (2.8% in spanish prune and 4.7% in guava) occurred on fruits present for six days in the field and for pteromalidae in fruits present for eight days (2.4% in spanish prune and 1.9% in guava).
Parasitismo Sazonal e Flutua??o Populacional de Opiinae (Hymenoptera: Braconidae), Parasitóides de Espécies de Anastrepha (Diptera: Tephritidae), em Seropédica, RJ
Neotropical Entomology , 2001, DOI: 10.1590/S1519-566X2001000400016
Abstract: the present study was conducted to evaluate annual changes in the abundance of the parasitoids opiinae and in their percentage of parasitism in anastrepha larvae under influence of the climatic factors and the availability of host fruits in seropedica, rj, brazil. the opiinae doryctobracon areolatus (szépligeti), utetes (bracanastrepha) anastrephae (viereck) and opius bellus gahan were collected in association with five species of anastrepha: a. fraterculus (wied.), a. leptozona hendel, a. obliqua (macquart), a. serpentina (wied.) and a. sororcula zucchi. during both years of sampling (1998 and 1999), d. areolatus was the most abundant species and was present in all monthly collections. u. anastrephae and o. bellus were not present in the fruit samples collected during winter (june to august). these opiinae responded similarly to seasonal changes in climatic conditions and number of emerged flies. although the percentages of parasitism of anastrepha by the three species of opiinae were not correlated with the climatic factors studied, there was a tendency of the parasitoids to parasitize more actively in the warmer and wetter months of the year (summer). in these months, the highest availability of native fruit hosts was also observed. the correlations between monthly number of adults of each parasitoid species and the average monthly rainfall and mean temperature were significant and positives. there was no correlation with the average monthly relative humidity. the three species of parasitoids were more abundant during the warmer and wetter period of the year (summer, december to february, and autumn, march to may). decreasing of temperature and rainfall recorded from may determined a reduction in the number of parasitoid and flies emerged during winter. the fluctuations in number of opiinae between seasons were significantly correlated with the changes in numbers of anastrepha populations, indicating a direct density-dependent relationship. the opiinae become mor
Diversity of fly species (Diptera: Tephritoidea) from Passiflora spp. and their hymenopterous parasitoids in two municipalities of the southeastern Brazil
Aguiar-Menezes, Elen L.;Nascimento, Robson J.;Menezes, Eurípedes B.;
Neotropical Entomology , 2004, DOI: 10.1590/S1519-566X2004000100020
Abstract: this paper evaluated the infestation of two passion fruit species by tephritids and lonchaeids in two municipalities of southeastern brazil. floral buds of sweet passion fruit (passiflora alata) and yellow passion fruit (passiflora edulis f. flavicarpa) were collected in seropédica (rj) and vila valério (es), respectively. fruits of p. alata were also collected in seropédica. three species of lonchaeidae were obtained from floral buds of p. alata (neosilba zadolicha mcalpine & steyskal, neosilba sp. and dasiops longulus norrbom & mcalpine), and species of four genera of tephritoidea were obtained from fruits: anastrepha pseudoparallela loew (tephritidae), dasiops frieseni norrbom & mcalpine (lonchaeidae), euxesta sp. and notogramma cimiciforme loew (otitidae). specimens of ganaspis sp. (figitidae: eucoilinae) were recovered from some sweet passion fruits infested by tephritids or lonchaeids. only specimens of dasiops inedulis steyskal (lonchaeidae) were obtained from floral buds of yellow passion fruit. parasitoids belonging to the genus opius wesmael (braconidae: opiinae) were also collected in association with this fly species.
First record of Coptera haywardi Loiácono (Hymenoptera: Diapriidae) as a parasitoid of fruit-infesting Tephritidae (Diptera) in Brazil
Aguiar-Menezes, Elen L.;Menezes, Euripedes B.;Loiácono, Marta S.;
Neotropical Entomology , 2003, DOI: 10.1590/S1519-566X2003000200025
Abstract: this study reports the first occurrence of coptera haywardi loiácono as a pupal parasitoid of fruit-infesting tephritidae in brazil. we reared this diapriid from fruits of eugenia uniflora (surinam cherry) infested by anastrepha fraterculus (wiedemann) and/or anastrepha sororcula zucchi. we also identified two other species of pupal parasitoids: pachrycrepoideus vindemmiae rondani and spalangia endius walker (pteromalidae). four species of larval-pupal parasitoids were also recorded: doryctobracon areolatus (szépligeti), utetes (bracanastrepha) anastrephae (viereck), opius bellus gahan (braconidae) and aganaspis pelleranoi (brèthes) (figitidae).
Análise faunística de moscas-das-frutas (Diptera: Tephritidae) nas regi?es norte e noroeste do Estado do Rio de Janeiro
Aguiar-Menezes, Elen L.;Souza, Silvana A.S.;Lima-Filho, Mauri;Barros, Hallan C.;Ferrara, Fernando A.A.;Menezes, Eurípedes B.;
Neotropical Entomology , 2008, DOI: 10.1590/S1519-566X2008000100002
Abstract: this study aimed to characterize the fruit fly populations in three municipalities of the northern region and two municipalities of the northwestern region of rio de janeiro state, brazil, and to evaluate the similarity among their populations. a faunistic analysis was performed from the fruit fly specimens captured in plastic mcphail traps with an aqueous solution of hydrolyzed protein to 5% placed in orchards of guava (psidium guajava l.) and/or other fruits during 26 months. the total of 3,952 females of 15 species of anastrepha schiner and 277 females of ceratitis capitata (wied.) was captured. the species richness differed among the municipalities, with the highest value in s?o francisco do itabapoana (s = 14), resulting on the highest shannon-wiener index (h? = 1.27). the equitability was low in the five municipalities due to the dominance of one unique fruit fly species. the predominant species (more frequent, constant and dominant) were anastrepha obliqua (macquart) in campos dos goytacazes and s?o francisco do itabapoana, anastrepha fraterculus (wied.) in cambuci and itaocara, and anastrepha sororcula zucchi in s?o jo?o da barra. fruit fly populations had low diversity index of margalef (a = 0.58 to 1.82). regarding to fruit fly species composition, the populations in s?o jo?o da barra and cambuci were more similar between each other, composing a distinct group from the populations in campos dos goytacazes and itaocara. these two groups differed quite a lot from the population in s?o francisco do itabapoana.
Susceptibilidade de seis cultivares de café arábica às moscas-das-frutas (Diptera: Tephritoidea) em sistema organico com e sem arboriza??o em Valen?a, RJ
Aguiar-Menezes, Elen L.;Souza, Silvana A.S.;Santos, Carlos M.A.;Resende, André L.S.;Strikis, Pedro C.;Costa, Janaína R.;Ricci, Marta S.F.;
Neotropical Entomology , 2007, DOI: 10.1590/S1519-566X2007000200014
Abstract: the infestation indices by fruit flies were determined for six cultivars of coffea arabica l. in shaded and unshaded systems under organic management. the experiment was set in a completely randomized design with a split-split-plot arrangement and four replicates. a 250g-sample of maturing fruits per plot was harvested in may 2005. the cultivars ?icatu amarelo? and ?catucaí amarelo? were the least susceptible to attack by tephritids in both systems. as for lonchaeids, ?oeiras?, ?catucaí amarelo? and ?catuaí vermelho? were the least susceptible cultivars in the shaded system, and there was no difference among the cultivars in the unshaded system. the following tephritid species were obtained: ceratitis capitata (wiedemann), anastrepha fraterculus (wiedemann) and a. sororcula zucchi (tephritidae). lonchaeids were represented by neosilba bifida strikis & prado, n. certa (walker), n. glaberrima (wiedemann), n. pendula (bezzi), n. pseudopendula (korytkowski and ojeda), dasiops rugifrons hennig, neosilba n.sp.10 and neosilba n.sp.14.
Consórcio couve-coentro em cultivo organico e sua influência nas popula??es de joaninhas
Resende, André Luis S;Viana, Abra?o José da S;Oliveira, Rafael J;Aguiar-Menezes, Elen de L;Ribeiro, Raul de LD;Ricci, Marta dos SF;Guerra, José Guilherme M;
Horticultura Brasileira , 2010, DOI: 10.1590/S0102-05362010000100008
Abstract: intercropping is commonly practiced in the production of vegetable crops due to diverse economic benefits. in some cases, it may decrease the infestations of pests by favoring the conservation of the natural enemies in the agroecosystems. this study aimed to evaluate the agronomical viability of the kale and coriander intercropping, under organic management, based on phytotechnical parameters, and its influence on the populations of ladybeetles (coleoptera: coccinellidae) in comparison to respective sole crops. coriander, representing the secondary crop, was used aiming to provide resources to ladybeetles. the study was carried out in area of the sistema integrado de produ??o agroecológica, seropédica county, state of rio de janeiro. the experiment consisted of two types of intercropping: 1) kale intercropped with coriander, whose four lines of plants were harvested at the vegetative phase (intercropping i), and 2) kale intercropped with coriander, whose plants of the two internal lines (near to the line of kale) were harvested at the vegetable phase, and the two external lines were cut after blossom (intercropping ii). in both intercropping the phytotechnical parameters of the kale and the coriander at the vegetative phase (commercial standard) were evaluated, while in the intercropping ii, the populations of ladybeetles were also evaluated by weekly samples of adults, in comparison to kale sole crop. the experimental design was of randomized blocks with four replicates. coriander did not interfere in the productivity of the kale intercropped and its introduction contributed positively to the abundance and the species diversity of ladybeetles. the land equivalent ratio for the intercropping i, taking into account the yield of fresh aerial biomass, was superior in 92% in relation to kale sole crop. this result demonstrates the viability of the intercropping i, in the organic management adopted, for cultivation of autumn in the edaphoclimatic conditions of the baixad
Wood consumption rates of forest species by subterranean termites (Isoptera) under field conditions
Peralta, Regina Célia Gon?alves;Menezes, Eurípedes Barsanulfo;Carvalho, Acácio Geraldo;Aguiar-Menezes, Elen de Lima;
Revista árvore , 2004, DOI: 10.1590/S0100-67622004000200015
Abstract: termites are well -known for their capacity to damage and destroy wood and wood products of all kinds in the tropics and subtropics. a field test was undertaken to evaluate variations in wood consumption of pinus sp. and three species of eucalyptus by subterranean termites. the test consisted of wooden stakes of each species being initially submitted to water immersion for 0, 24, 48 and 72 h, and buried in the ground to natural infestation by subterranean termites for an exposure period of 30, 45 and 60 days. three species of subterranean termites were identified: heterotermes longiceps (snyder), coptotermes gestroi (wasmann) (isoptera: rhinotermitidae), and nasutitermes jaraguae (holmgren) (isoptera: termitidae). this is the first record of occurrence of h. longiceps in the state of rio de janeiro. although the wood-consumption rates were not correlated significantly with their wood densities, there was a tendency of the softwoods (e. robusta and pinus sp.) to be more consumed by subterranean termites than the woods of intermediate hardness (e. pellita and e. urophylla). among the eucalyptus, e. robusta showed to be more susceptible to attack by subterranean termites than e. pellita and e. urophylla
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