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Search Results: 1 - 10 of 23993 matches for " Lino Bittencourt;Souza "
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Controle de tortricídeos em macieira com duas formula？？es de Bacillus thuringiensis var. Kustaki em Fraiburgo-SC
Monteiro, Lino Bittencourt;Souza, Alexander;
Revista Brasileira de Fruticultura , 2010, DOI: 10.1590/S0100-29452010005000063
Abstract: grapholita molesta and bonagota cranaodes are two key pests in apple orchards controlled by insecticides. the objective of the present study was to test two formulas of bacillus thuringiensis var. kurstaki to control these tortricid moths. plot of 'fuji' apple trees were sprayed with dipel pm and dipel sc, at a concentration of 100ml por 100 l liquid. the efficiency of btk was compared with the insecticides tebuphenozide (mimic 240 sc - 90 ml por 100 l) and chlorpyrifos (lorsban 480 br - 150 ml por 100 l). the capture of pests in a delta-type trap was assessed twice a week. fruit damage was evaluated pre- and post- harvest and the fruit were classified by branch-end clustering and location on the plant. the treatments with b. thuringiensis were more damaged than those with chemical treatments. there tended to be more damage in the internal part, close to the apple tree trunk and the fruit clustering did not influence damage occurrence. both dipel formulations was efficient in relation of mimic and lorsban.
Compara？？o econ？mica entre controle biológico e químico para o manejo de ácaro-vermelho em macieira
Monteiro, Lino Bittencourt;Souza, Alexander;Pastori, Patrik Luiz;
Revista Brasileira de Fruticultura , 2006, DOI: 10.1590/S0100-29452006000300038
Abstract: red spider mite, panonychus ulmi (acari: tetranychidae) is a significant pest in apple tree in fraiburgo, santa catarina (sc) and applied biological control was implemented in the mid-nineties. the objective of this study was to demonstrate the economic benefits of biological control in the management of red spider mite. the assessment was carried out in two commercial orchards, one of which was subjected to biological control of spider mite by releasing the predator neoseiulus californicus, insecticide selection and weed management, and the other to conventional arthropod management, based on the application of chemicals to control insects, phytofagous mites and weed. economic analysis showed that the costs for labor and machines were similar in both orchards; however acaricide costs were significantly lower in the orchard subjected to biological control, demonstrating that despite the need for investment in predator mite breeding apparatus and maintenance costs, the biological strategy was economically viable.
Parasitism on Eriosoma lanigerum (Homoptera: Aphididae) by Aphelinus mali (Hymenoptera: Encyrtidae) on apple orchards, in Fraiburgo county, state of Santa Catarina, Brazil
Monteiro, Lino Bittencourt;Souza, Alexander;Belli, Edson Luiz;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000300043
Abstract: the parasitism of the woolly apple aphid (eriosoma lanigerum hausmann) by aphelinus mali (hald.) was evaluated in apple orchards cultivated with the varieties gala and fuji in fraiburgo county, state of santa catarina, southern brazil. colonies of the woolly apple aphid were evaluated during one year on 16 apple trees of each variety, starting in august 1999. the number of aphids at the mummy stage or presenting the orifice of the parasitoid emergence was recorded. results have shown that a. mali parasitized more than 50% of the woolly apple aphids and occurred during the four seasons. it was concluded that that under these conditions no chemical control against the aphid is necessary for the apple varieties gala and fuji.
Efeito do manejo de plantas daninhas sobre Neoseiulus californicus (Acari:Phytoseiidae) em pomar de macieira
Monteiro, Lino Bittencourt;Belli, Luiz;Souza, Alexander de;Werner, André Luiz;
Revista Brasileira de Fruticultura , 2002, DOI: 10.1590/S0100-29452002000300027
Abstract: the influence of weed management on tetranychid mites (panonychus ulmi and tetranychus urticae) and phytoseids movement was evaluated. neoseiulus californicus populations were released in an apple orchard for biological control of tetranychid mites. three kinds of weed management were used: no weed control at all, manual control and control with herbicide. the mites were evaluated in plantago tormentosa, erigeron sp, and apple tree leaves. the highest population of n. californicus was observed where weed was not controlled. tetranychid mites populations were abundant on apple trees when herbicide was used, probably due to the low population of n. californicus. p. tormentosa was the preferred host of phytoseids. the conclusion was that weed management plays an important role in the regulation of mite species in apple orchards.
Efeito do manejo de plantas daninhas sobre Neoseiulus californicus (Acari:Phytoseiidae) em pomar de macieira
Monteiro Lino Bittencourt,Belli Luiz,Souza Alexander de,Werner André Luiz
Revista Brasileira de Fruticultura , 2002,
Abstract: Avaliou-se a influência do manejo de plantas daninhas sobre o deslocamento de ácaros tetraniquídeos (Panonychus ulmi e Tetranychus urticae) e do ácaro predador Neoseiulus californicus em um pomar de macieira 'Gala', onde foi implantado o controle biológico do ácaro vermelho, P. ulmi, por meio de libera es massais de N. californicus. As parcelas tiveram as plantas daninhas manejadas de três formas: sem manejo, com ro adas manuais e com herbicidas. As popula es de ácaros foram avaliadas sobre as plantas daninhas, Plantago tormentosa e Erigeron sp, e sobre as folhas de macieira. As maiores popula es de N. californicus foram observadas nas parcelas onde os manejos proporcionaram desenvolvimento de plantas daninhas na linha de plantio. Na parcela manejada com herbicida, houve maior popula o de ácaros tetraniquídeos sobre as macieiras, provavelmente, devido ao reduzido número de N. californicus. P. tormentosa foi o hospedeiro preferencial do ácaro predador. Concluiu-se que o manejo de plantas daninhas, na linha de plantio das macieiras, assume um importante papel no equilíbrio entre as popula es de ácaros.
Ocorrência de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) em ovos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) em macieira
Monteiro, Lino Bittencourt;Souza, Alexandre de;Belli, Edson Luiz;Silva, Ranyse Barbosa Querino da;Zucchi, Roberto Antonio;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000100045
Abstract: apple leaf roller, bonagota cranaodes (meyrick) is native from south america and it is one of the most important apple pests in brazil. its control is exclusively done by insectides and biological control isn't frequently applied. in this way is necessary to know the parasitoids associated with apple leaf roller. the objective of this study was to detect the parasitism occurrence on b. cranaodes eggs in the state of santa catarina (brazil). from january 2000 to november 2001; 1,700 masses were collected on leaves of apple tree, hydrangea macrophyla and hedera sp. in fraiburgo, santa catarina state. during this period egg parasitism was registered in 6.6% of masses where 22.3% of the eggs suffered parasitism. the parasite identified was trichogramma pretiosum. this is the first record of parasitizing of trichogramma pretiosum in b. cranaodes eggs in commercial apple orchards in brazil.
SELETIVIDADE DE INSETICIDAS A Neoseiulus californicus MCGREGOR (ACARI: PHYTOSEIIDAE) EM MACIEIRA, NO RIO GRANDE DO SUL
MONTEIRO, LINO BITTENCOURT;
Revista Brasileira de Fruticultura , 2001, DOI: 10.1590/S0100-29452001000300029
Abstract: the side-effects of agrochemical to neoseiulus californicus (acari: phytoseiidae) were studied in laboratory. the mites were collected in commercial apple orchard of agropastoril rinc？o das flores, in vacaria, rio grande do sul, brazil, after successive inoculative releases. the insecticids used were recommended to control of same pest, as anastrepha fraterculus (diptera: tephritidae). the reproduction effect and mortality were evalued 12, 24, 48 and 96 hours after pulverization, while the agrochemical were ranked in toxicity classes, according to iobc/wprs. azinphos ethyl, deltametrina e fenthion were harmful with ca. 100% of mortality in 24 hours, dimethoate, fenitrotion, paration, phosmet e triclorfon were slightly harmful (class 2). malation was harmless.
SELETIVIDADE DE INSETICIDAS A Neoseiulus californicus MCGREGOR (ACARI: PHYTOSEIIDAE) EM MACIEIRA, NO RIO GRANDE DO SUL
MONTEIRO LINO BITTENCOURT
Revista Brasileira de Fruticultura , 2001,
Abstract: Testes para determinar os efeitos de agroquímicos homologados para macieira foram realizados em laboratório sobre Neoseiulus californicus (Acari: Phytoseiidae). Os indivíduos testados foram coletados de um pomar comercial da Agriflor Ltda, em Vacaria, Rio Grande do Sul, após várias libera es inoculativas. Os inseticidas utilizados foram os tradicionalmente recomendados para o controle de pragas, principalmente mosca-das-frutas Anastrepha fraterculus (Diptera: Tephritidae). A oviposi o e a mortalidade dos ácaros foram avaliadas 12; 24; 48 e 96 horas após a pulveriza o, cujos produtos foram classificados em quatro classes de toxicidade (IOBC/WPRS). Azinphos ethyl, deltametrina e fenthion provocaram 100% de mortalidade, sendo que dimethoate, fenitrotion, paration, phosmet e triclorfon foram levemente nocivos (classe 2). Malation foi considerado neutro para esta popula o.
Adenosine Deaminase Polymorphism Affects Sleep EEG Spectral Power in a Large Epidemiological Sample
Diego Robles Mazzotti, Camila Guindalini, Altay Alves Lino de Souza, Jo？o Ricardo Sato, Rogério Santos-Silva, Lia Rita Azeredo Bittencourt, Sergio Tufik
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0044154
Abstract: Slow wave oscillations in the electroencephalogram (EEG) during sleep may reflect both sleep need and intensity, which are implied in homeostatic regulation. Adenosine is strongly implicated in sleep homeostasis, and a single nucleotide polymorphism in the adenosine deaminase gene (ADA G22A) has been associated with deeper and more efficient sleep. The present study verified the association between the ADA G22A polymorphism and changes in sleep EEG spectral power (from C3-A2, C4-A1, O1-A2, and O2-A1 derivations) in the Epidemiologic Sleep Study (EPISONO) sample from S？o Paulo, Brazil. Eight-hundred individuals were subjected to full-night polysomnography and ADA G22A genotyping. Spectral analysis of the EEG was carried out in all individuals using fast Fourier transformation of the signals from each EEG electrode. The genotype groups were compared in the whole sample and in a subsample of 120 individuals matched according to ADA genotype for age, gender, body mass index, caffeine intake status, presence of sleep disturbance, and sleep-disturbing medication. When compared with homozygous GG genotype carriers, A allele carriers showed higher delta spectral power in Stage 1 and Stages 3+4 of sleep, and increased theta spectral power in Stages 1, 2 and REM sleep. These changes were seen both in the whole sample and in the matched subset. The higher EEG spectral power indicates that the sleep of individuals carrying the A allele may be more intense. Therefore, this polymorphism may be an important source of variation in sleep homeostasis in humans, through modulation of specific components of the sleep EEG.
Produ？？o, teor foliar e qualidade de frutos do pessegueiro 'Chimarrita' em fun？？o da aduba？？o nitrogenada, na regi？o da Lapa-PR
Dolinski, Marcos Antonio;Monte Serrat, Beatriz;Motta, Antonio Carlos Vargas;Cuquel, Francine Lorena;Souza, Silvana Regina de;May-De Mio, Louise Larissa;Monteiro, Lino Bittencourt;
Revista Brasileira de Fruticultura , 2005, DOI: 10.1590/S0100-29452005000200027
Abstract: the peach (prunus persica l. batsch) integrated production regulates the n rates to be applied in order to obtain high yield and fruit quality without affecting plant sanity and environmental quality. however, there is a great lack of local information about n rate that it is necessary to achieve high yield for orchard at lapa origin. so, an experiment was implanted in 5-year old commercial orchard, in the lapa county, paraná state, brazil where it was evaluated n rates effect over the fruit yield, leaves concentration and quality, during three years. the experimental design was a randomized block with three treatments and three replications. the treatments were three n rates (40, 80 and 160 kg of n ha-1 ano-1), using urea as n source. the reduction in nitrogen fertilization, in established orchard, diminished the yield only for the second year. there was an accumulated yield decrease of 8,4 t ha-1 during three years, comparing the smallest to largest rate. the yield was straight associated with fruit number since the fruit mass and caliber were not affected by n application. the n fertilization did not effect fruit qualitative proprieties evaluated (total soluble solids, acidity total titratable and firmness of the pulp) and them values stayed within range concentration considered normal for cultivar. leave tissue analysis showed that only n concentration was affected by the n fertilization for the three evaluated years, but being in normal levels for all treatments. the ca, mg, fe and zn leaves concentration was below normal level established for peach..
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