Ácaro da leprose Bvevipalpus phoenicis (Geijskes, 1939): combate experimental em laranjeiras

In order to control the mite of leprosis B. phoeniois a field test was carried out in Piracicaba, State of São Paulo, Brazil, with the following treatments and active ingredients per 100 liters of water: A) check; B) clofentezine, 9.45g; C) clofentezine, 9.45g + multimethyl alkenols, 0.4g; D) quinomethionate, 25.0g; E) quinomethionate, 37.5g; F) pyrethroid RU-1000, 1.76g; G) pyrethroid RU-1000; 2.0g; H) dicofol, 37.0g (standard treatment). Each orange tree was sprayed with 6 liters of the product. Six evaluations were made: one 3 days before spraying and 5 post-treatment (5, 14, 18, 26 and 35 days after spraying. The best treatments were B, F, G and H.Com o objetivo de combater o ácaro da leprose foi montado um campo experimental com os seguintes tratamentos: A) testemunha; B) clofentezina, 9,45g; C) clofentezina, 9,45g + alquenóis multimetílicos, 0,4g; D) quinometionato, 25,Og; E) quinometionato, 37,5g; F) piretróide RU-1.000, l,76g; G) piretróide RU-1.0Q0, 2,0g; H) dicofol, 37,0g (tratamento padrão). As quantidades citadas são de ingredientes ativos em 1000 litros de calda (Tabela 1). Cada laranjeira foi pulverizada com 6 litros de calda, aplicada com pulverizador costal motorizado. Foram feitas 6 avaliações: a prévia (03 dias antes da pulverização) e 5 pos-aplicaçao (05, 14, 18, 26 e 35 dias após a aplicação). Pela análise dos resultados obtidos verifica-se que os tratamentos B, F, G e H. foram os mais eficientes. Os resultados da redução real podem ser observados na Tabela 2

Controle do ácaro da falsa ferrugem (Phyllocoptruta oleivora Ashm., 1879) por um juvenóide e outros defensivos agrícolas

In order to control the citrus rust mite on orange-trees a field experiment was carried out in Limeira, State of São Paulo, Brazil, an important citrus producing area. Treatments correspondend to a single application on 01/10/89 of: A) check; B) juvenoid flucycloxuron, 40 cm³; C) bromopropilate 65 cm³; D) quinomethionate + sulphur 200 cm³; E) quinomethionate + sulphur 250 cm³; F) fonnetanate 22,5 g; G) formetanate 31,5 g. The quantities are of commercial formulations in 100 liters of water. Each tree received 10 liters of the mixtures. Avaliations were made before spraying and 6, 20, 36, 50 and 68 days after the application. The most effective results in the last three avaliations were obtained with treatments F, G and C. Treatments D and E were effective only for 6 and 20 days and the juvenoid for 20, 36 and 50 days after spraying.Vários defensivos agrícolas, incluindo um juvenóide, foram aplicados contra o acaro da falsa ferrugem em pomar localizado em Limeira,SP, uma das principais áreas citrícolas do Brasil. Os tratamentos constaram de uma única aplicação, feita em 01/10/89. Tratamentos: A) testemunha; B) flucicloxurom (juvenóide) 40 cm³; C) bromopropilato 65 cm³; D) quinometionato + enxofre 200 cm³; E) quinometionato + enxofre 250 cm³; F) formetanato22,5 g; G) formetanato 31,5 g. As quantidades referem-se aos produtos comerciais para 100 litros de água. Cada laranjeira recebeu 10 litros de calda. Espalhante-adesivo: "Extravon" (25 cm³/100 litros). O delineamento estatístico feito foi de blocos ao acaso, com 4 repetições. Foram feitas 6 avaliações: 1 prévia e 5 após 06, 20, 36, 50 e 68 dias da aplicação. F, G e C foram os melhores tratamentos. D e E foram eficientes somente aos 06 e 20 dias e o juvenóide, aos 20, 36 e 50 dias

Ensaio de combate ao ácaro da leprose de citros Brevipalpus phoenicis (Geijskes, 1939) com novo juvenóide e outros acaricidas

A field test was carried out on adult orange trees sprayed with flucycloxuron, propargite and bromopropilate to check their efficiency in controlling leprosis mite. Treatments used were: A) check; B) flucycloxuron, 10g; C) flucycloxuron, 15g; D) flucycloxuron, 20g; E) flucycloxuron, 30g; F) propargite, 72g; G) bromopropilate, 37,5g. Quantities indicated are grams of active ingredients per 100 liters of water. Control evaluations were made 2 days before and 7, 20, 34 and 50 days after spraying. Treatments of propargite and bromopropilate turned out to be the most efficient. Treatments B, C, D, E were not efficient at all.Foi montado um ensaio visando conhecer a eficiência do flucicloxurom (juvenóide constituído de benzoil-fenil-uréia substituída), do propargite e do bromopropilato, no combate ao acaro da leprose (Brevipalpus phoenicis Geijskes, 1939). Os produtos foram empregados nas seguintes dosagens: A) testemunha; B) flucicloxurom, 10g; C) flucicloxurom, 15g; D) flucicloxurom, 20g; E) flucicloxurom, 30g; F) propargite, 72g; G) bromopropilato, 37,5g (tratamento padrão), sendo os valores supracitados quantidade de ingrediente ativo por 100 litros de calda. Foram aplicados 6 litros de calda por laranjeira, com pulverizador motorizado costal. Foram feitas 5 avaliações do combate: uma prévia (02 dias antes da pulverização) e quatro outras (07, 20, 34 e 50 dias pós-aplicação). A partir dos resultados obtidos, conclui-se que os tratamentos mais eficientes foram o propargite e o bromopropilato

Charged-particle distributions in √s=13 TeV pp interactions measured with the ATLAS detector at the LHC

Charged-particle distributions are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV, using a data sample of nearly 9 million events, corresponding to an integrated luminosity of 170 μb−1170 μb−1, recorded by the ATLAS detector during a special Large Hadron Collider fill. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the dependence of the mean transverse momentum on the charged-particle multiplicity are presented. The measurements are performed with charged particles with transverse momentum greater than 500 MeV and absolute pseudorapidity less than 2.5, in events with at least one charged particle satisfying these kinematic requirements. Additional measurements in a reduced phase space with absolute pseudorapidity less than 0.8 are also presented, in order to compare with other experiments. The results are corrected for detector effects, presented as particle-level distributions and are compared to the predictions of various Monte Carlo event generators

Measurement of the View the tt production cross-section using eμ events with b-tagged jets in pp collisions at √s = 13 TeV with the ATLAS detector

This paper describes a measurement of the inclusive top quark pair production cross-section (σtt¯) with a data sample of 3.2 fb−1 of proton–proton collisions at a centre-of-mass energy of √s = 13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron–muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σtt¯ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σtt¯ = 818 ± 8 (stat) ± 27 (syst) ± 19 (lumi) ± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented

Search for strong gravity in multijet final states produced in pp collisions at √s=13 TeV using the ATLAS detector at the LHC

A search is conducted for new physics in multijet final states using 3.6 inverse femtobarns of data from proton-proton collisions at √s = 13TeV taken at the CERN Large Hadron Collider with the ATLAS detector. Events are selected containing at least three jets with scalar sum of jet transverse momenta (HT) greater than 1TeV. No excess is seen at large HT and limits are presented on new physics: models which produce final states containing at least three jets and having cross sections larger than 1.6 fb with HT > 5.8 TeV are excluded. Limits are also given in terms of new physics models of strong gravity that hypothesize additional space-time dimensions

Search for TeV-scale gravity signatures in high-mass final states with leptons and jets with the ATLAS detector at sqrt [ s ] = 13TeV

A search for physics beyond the Standard Model, in final states with at least one high transverse momentum charged lepton (electron or muon) and two additional high transverse momentum leptons or jets, is performed using 3.2 fb−1 of proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2015 at √s = 13 TeV. The upper end of the distribution of the scalar sum of the transverse momenta of leptons and jets is sensitive to the production of high-mass objects. No excess of events beyond Standard Model predictions is observed. Exclusion limits are set for models of microscopic black holes with two to six extra dimensions