A total of 293 specimens Oxelytrum discicolle were sampled weekly over a period two years using black light trap. The study took place in an Atlantic Forest reserve located near Viçosa city, Minas Gerais State, Brazil. peak abundance O. occurred during the wet season between months October and March. Statistical analysis showed that individuals was significantly positively correlated with temperature, but not rainfall or relative humidity. Of 28 morphological measurements taken on each...

Elephant grass is an outstanding crop biomass for sustainable energy generation. Here, the effect of plant parts (stem, leaf, and whole plant) at four ages (90, 120, 150, 180 days) on proximate, chemical, elemental characteristics elephant cultivar BRS Capiaçu investigated. From proximate analysis, heating value dependent water content regardless part age. A linear model allowing prediction solely based derived from measurements. Density modelled as a quadratic function across parts. Such...

The objective of this study was to produce and evaluate briquettes from residues corn crops its association with cotton crop residues, rice husk or elephant grass for energetic use. Data on moisture, immediate chemical analysis, bulk density, higher calorific value (HCV), volumetric expansion mechanical strength were used compare the treatments. Biomass densified at 125ºC under 15 MPa pressure 8 minutes. HCV results similar all analysis showed high VC FCC highest AC observed in briquets 20%...

Atividades agrícolas, florestais e do setor imobiliário vêm, ao longo tempo, modificando ambientes ecologicamente estruturados. As consequências são drásticas e, por isso, faz-se necessária a busca ferramentas instrumentos para diagnosticar monitorar diversidade biológica desses locais. Os insetos têm-se destacado como potenciais organismos bioindicadores isso se deve fato de apresentarem grande capacidade perceptiva, no que refere alterações meio ambiente, principalmente seu apurado sistema...

The official methods adopted by different worldwide agencies for determination of water content Brazil nut is the dissication in drying oven at 105 ºC during 3 or 24 hours and until constant height samples.However, applying these nut, may result inconsistent values, possibly due to lipid oxidation.Thus, objective this study was evaluate accuracy oven-drying methods, recommended agencies, determine correct parameters, such as temperature exposure time.For purpose, samples were placed ovens...

Activated carbon is a porous material with several industrial applications. In this research, brazil nut shell was used to produce activated carbon, promising raw based on its low cost and high quality. Also, processing generates an extensive amount of waste, requiring proper disposal. The produced at temperatures 600, 700, 800 °C by physical method using steam or CO2. Yield calculated, the analyzed according following physical-chemical parameters: water content, volatile material, fixed...

The objective of this work was to assess the flight capacity, parasitism and emergence Trichogramma atopoviriliaand two strains T. pretiosum (Hymenoptera: Trichogrammatidae) (L1 L2). capacity these species assessed in test units consisting a plastic PVC cylinder with rigid transparent circle on upper part an extruded polystyrene disk closing its bottom. A tube placed each unit containing card 300 Anagasta kuehniella (Lepidoptera: Pyralidae) eggs parasitised by Trichogramma. These cards were...

Tribolium castaneum is an insect that occurs worldwide and it a pest attacks stored products, in particular, grains seeds. The adult immature forms are categorized as secondary pests which feed on or seeds previously damage storage conditions. objective of this study was to describe the type caused by adults T. Brazil nuts identify Coleoptera. It also verified whether shell can protect almond from attack pest. lesions inflicted starts scratched surface, evolves into galleries even injuries...

Studies of Asopinae predators in Brazil were initiated the 1930's, focusing on use these insects biological control programs.However, beginning a period major contributions to knowledge started year 1986, with release first research results, Proceedings X Brazilian Congress Entomology Maceió, Alagoas, Brazil.In 1991 scientific paper was published predator Podisus connexivus Bergroth [= nigrispinus (Dallas)] (Hemiptera: Pentatomidae), study parameters this for alternative feeding caterpillars...

Platyscytus decempunctatus Carvalho is a small mirid living throughout its life cicle plant Solanum cernuum Vell. (Solanaceae). The internal morphology of P. was studied and found that the female has telotrophic ovary with three ovarioles in right five left one. In male reproductive trait there well developed tubular accessory gland. phytophagous feeding habitat confirmed by observations chlorophyll pigments gut all dissected specimens. salivary glands Malpighian tubules were also discussed.

Desenvolveu-se um iogurte natural aproveitando o soro de queijo coalho, avaliando diferentes processos pasteurização e concentração leite em pó. Os iogurtes submetidos a 90ºC/5min nas concentrações 8% 10% pó não apresentaram diferenças entre si (P>0,05) quanto à aceitação sensorial. produtos foram caracterizados como integral, atenderam às exigências proteínas forneceram mais 15% do requisito diário recomendado cálcio para crianças 10 anos, satisfazendo as cálcio. Em ambas formulações, pH...

Abstract The leaf-cutting ant Atta sexdens Forel (Hymenoptera: Formicidae) is one of the most damaging agricultural pests in Neotropics. Management strategies predominantly rely on use general insecticides. What needed are more species-specific and environmentally friendly options. Parasitioids such as phorid flies (Diptera: Phoridae) may be option, but a greater understanding ecology their hosts essential to devise biological control strategies. Here we report parasitism rates, host size,...

ABSTRACT Podisus nigrispinus are bedbug predators that used as biological control agents of defoliating larvae in eucalypt plantations. The mass rearing natural enemies produces large numbers insects, but the number produced may not coincide with timing outbreaks pest populations field. aim this study was to evaluate effects different storage periods on eggs P. at low temperatures 5, 13 and 15ºC. treatments consisted 10, 15 20 days predator each temperature indicated. After storage, were...

Sustainable biomasses are vital to ensure preservation of the Amazon biome within Mato Grosso State whilst enabling energy generation for region and its population. Here, potential elephant grass cultivar BRS Capiaçu as an alternative replace native forest wood biomass is investigated, considering whole process from plant cultivation characterisation in terms productivity green dry mass per hectare; density, moisture, ash, volatile fixed carbon content, well higher heating value (HHV)....

Leptoglossus zonatus (Dallas) (Heteroptera: 
 Coreidae) is a phytophagous bug widely found in the American continent. This species associated with different crops, which they use to establish due favorable food supply and conditions for their development. The aim of this work was record occurrence L. attacking
 starfruit Sinop, Mato Grosso, Brazil report new host plant species. Adults immatures were between September November 2009 feeding on (Averrhoa carambola L.) Brazil. attack...

A migração de pragas plantas nativas para a eucaliptocultura pode causar perdas significativas em sua produção. Foi relatada ocorrência das cigarrinhas Aethalion reticulatum Linnaeus (Hemiptera: Aethalionidae) e Membracis lunata Fabricius Membracidae) Eucalyptus cloeziana F. Muell. (Myrtaceae) no município Couto Magalhães Minas, Minas Gerais, Brasil. As espécies foram observadas eucalipto fase vegetativa campo. desses insetos atacando o...

Abstract Costalimaita ferruginea (Coleoptera: Chrysomelidae) attacks Eucalyptus plants causing severe damage through netting of the leaves. Recently, this Coleoptera has been reported attacking Myrtaceae in Mato Grosso State and, studies about occurrence beetle commercial plantations eucalypts subject researchers monitoring programmes forest protection area. With beginning rainy season, adults were observed eucalypt four cities that are part transition region Amazon and Cerrado Biomes. The...

Brazil nut is used widely in the food industry because nutritional content of this commodity contains a variety lipids, proteins, and essential minerals, as well vitamin A which cosmetic industry. Agricultural products such grains, seeds, nuts often are adversely affected by numerous organisms, including Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), that cause significant losses during storage. Therefore, objective present study was to investigate biological reproductive...

A migração de pragas plantas nativas para a eucaliptocultura pode causar perdas significativas em sua produção. Foi relatada ocorrência das cigarrinhas Aethalion reticulatum Linnaeus (Hemiptera: Aethalionidae) e Membracis lunata Fabricius Membracidae) Eucalyptus cloeziana F. Muell. (Myrtaceae) no município Couto Magalhães Minas, Minas Gerais, Brasil. As espécies foram observadas eucalipto fase vegetativa campo. desses insetos atacando o indica frutíferas novo hospedeiro, não sendo...

O objetivo deste trabalho foi identificar espécies de térmitas associados à

Costalimaita ferruginea (Fabricius) (Coleoptera: Chrysomelidae) is the main Coleoptera defoliator of eucalyptus in Brazil and has a strong association with plants family Myrtaceae, bein important for sectors energy, paper, pulp furniture industry. The objective present study was to record occurrence this Chrysomelidae Sinop, State Mato Grosso, Brazil, during months November 2010 January 2011, thus contributing increase knowledge on geographic distribution insect also hypothesize that may...

Rhyzopertha dominica is an insect that attacks several grains and seeds considered the main pest found in stored products Brazil. This classified as internal primary being a borer. It develops effectively grain mass due to its adaptability high biotic potential. The objectives of this study were verify if R. adults larvae feed on Brazil nuts, also characterize damage caused by Coleoptera. injuries inflicted appear scratched surfaces, which evolve into deep holes, almonds. As it has ability...

ABSTRACT Activated carbon is the name of a big group materials that presents high degree porosity and, consequently, an extended internal surface area, with physical and chemical adsorption properties. Innumerous raw can be used as precursors, especially biomass. The objective this study was to obtain activated from activation fruit Brazil nut tree (“ouriço”) evaluate its properties in function differences between temperatures atmospheres activation. samples were carbonized at 3 different...