Encontrados 15 documentos, a visualizar página 1 de 2
Population dynamics of bruquines in fruits of Cordia trichotoma in the Atlantic...
Pessotto, Marciane Danniela Fleck; Costa, Ervandil CorrêaColeoptera from Bruchinae subfamily can cause several damage to Cordia trichotoma (Vell.) Arrab. ex Steud. (Boraginaceae) seeds, especially at their larval stage. Bruquines biological control occurs at the field by the hymenoptera parasitoid action. The objective of this research was to study the population cycles of the bruquines and the hymenoptera parasitoids associated to them, as well as to relate their oc...
Initial growth of four tree species at different spacings
Caron, Braulio Otomar; Manfron, Paulo Augusto; Souza, Velci Queiróz de; Costa, Ervandil Corrêa; Eloy, Elder; Behling, Alexandre; Denardi, LucianoThe objective of this paper was to evaluate the initial increase of the height and diameter of the collum of the species Acacia mearnsii De Willd, Eucalyptus grandis Hill, Mimosa scabrella Benth and Ateleia glazioviana Baill in the spacings 2 x 1m; 2 x 1.5m; 3 x 1m and 3 x 1.5m, with views to the production of wood for energy in cultures of short rotation. An experimental design of randomized blocks was used in...
Soil fauna in initial planting of Eucalyptus under different alternatives to we...
Garlet, Juliana; Costa, Ervandil Corrêa; Boscardin, Jardel; Machado, Dayanna Nascimento; Pedron, Leandra; Machado, Leonardo MortariThe aim of this study was to investigate the effect of different chemical control of alternative weed in soil fauna in initial planting of Eucalyptus grandis. The treatments consisted of partial and full control of the weed vegetation. Collections were conducted through soil trap (pitfall). We collected 26,136 specimens, distributed in 13 taxonomic groups (Araneae, Blattodea, Chilopoda, Collembola, Coleoptera, ...
Pecan growth under different soil preparation and hole sizes: coleopterans as b...
Boscardin, Jardel; Costa, Ervandil Corrêa; Paulus, Eloi; Machado, Dayanna do Nascimento; Pedron, Leandra; Silva, Pedro Giovâni daThe study aimed to evaluate the effects of different soil preparation and hole sizes in an orchard of Carya illinoinensis pecan (Wangenh.) K. Koch (Juglandaceae) by the Order Coleoptera fauna. A pecan orchard was established in spacing 7 m x 7 m, in Santa Maria, Rio Grande do Sul State, Brazil in randomized block design, with five blocks and four treatments, using: small pit 20 m x 60 cm (Cp); more harrowing su...
First occurrence of Terastia meticulosalis preying on seeds of Erythrina crista...
Pedron, Leandra; Costa, Ervandil Corrêa; Garlet, Juliana; Boscardin, Jardel; Machado, Dayanna do Nascimento; Bolzan, Lisandro CunhaThe present study aimed at identifying which insect species damages seeds of Erythrina crista-galli L. From November 2012 to January 2013, six E. crista-galli trees were selected in the city of Santa Maria, Rio Grande do Sul State, Brazil, and six pods were taken from each tree. Such pods, properly packaged and identified, were taken to UFSM’s forest pest laboratory and stored in plastic containers until the ad...
Plantas daninhas e seus efeitos no ataque de pragas e no crescimento de plantas...
Garlet, Juliana; Costa, Ervandil CorrêaO manejo integrado de pragas em plantios florestais constitui-se na principal forma de controle e prevenção de ataques de insetos-praga, utilizando-se diferentes táticas, como o aumento da diversidade vegetal no interior do povoamento. O objetivo deste trabalho foi avaliar o efeito de diferentes alternativas de controle químico de plantas daninhas no ataque de insetos-praga e na produtividade de Eucalyptus gr...
Novos registros de Asopinae (Pentatomidae) predadores de lagartas Nystalea nyse...
Magistrali, Iris Cristiane; Costa, Ervandil Corrêa; Machado, Leonardo Mortari; Da Nadai, Janaínahttp://dx.doi.org/10.5007/2175-7925.2014v27n2p209Lagartas desfolhadoras são importantes insetos pragas em plantações florestais. O objetivo deste trabalho foi registrar a ocorrência de percevejos predadores em surtos de Nystalea nyseus em plantações de eucalipto. O estudo foi realizado em uma plantação seminal de Eucalyptus saligna Smith localizada no município de São Sepé, Rio Grande do Sul. Uma inspeção visua...
Scolytids associated with a population of black wattle (Acacia mearnsii De Wild)
Machado, Leonardo Mortari; Costa, Ervandil Corrêa; Magistrali, Iris Cristiane; Boscardin, Jardel; Machado, Dayanna do Nascimento; Garlet, JulianaBlack wattle cultivation is an important source of income in the State of Rio Grande do Sul, Brazil. Due to lack of information concerning the insect fauna in this kind of environment, this paper aims to analyze on a quali-quantitative basis the scolytid species associated with a population of Acacia mearnsii De Wild, in order to identify species that may cause damage to this species. For this, 36 flight-interc...
Damage of Oncideres saga in plantations of Acacia mearnsii in Rio Grande do Sul...
Magistrali, Iris Cristiane; Costa, Ervandil Corrêa; Garlet, Juliana; Boscardin, Jardel; Machado, Leonardo MortariThe objective of this study was to characterize the damage caused by Oncideres saga in plantations of Acacia mearnsii. The percentage of trees attacked was evaluated and the diameter and length of the branches were measured. It was observed that 34.3 % of the trees of A. mearnsii presented branches cut by O. saga. The average diameter and length of the cut branches were 5.75 cm and 4.95 m, respectively. The lo...
Ethanolic model of flight interception trap to capture scolytine (Curculionidae...
Murari, Augusto Bolson; Costa, Ervandil Corrêa; Boscardin, Jardel; Garlet, JulianaThis study aimed to develop an alternative model of trap for interception with ethanol for flying insects, in order to reduce the costs related to surveys of insects of the subfamily Scolytinae (Curculionidae), conducted in forest ecosystems. The model of trap, called PET-SM, was manufactured with recyclable materials: plastic plate, polyethylene (PET) bottle of two liters, PET bottle of 600 mL, and a hose with...