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Search Results: 1 - 10 of 11460 matches for " Marcos;Nakano "
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Exigências térmicas e estimativa do número de gera??es de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) em regi?es produtoras de ma?? do Sul do Brasil
Botton, Marcos;Nakano, Octávio;Kovaleski, Adalécio;
Anais da Sociedade Entomológica do Brasil , 2000, DOI: 10.1590/S0301-80592000000400002
Abstract: the thermal requirements of the apple leafroller bonagota cranaodes (meyrick) (lepidoptera: tortricidae) were estimated at four constant temperatures (14, 18, 22 e 26oc) in laboratory (70±10% r.h. and 14:10l:d). artificial diet was fed to the insects. the low threshold temperature and thermal requirement for eggs, larvae, pupae and biological cycle (egg to adult) were 7,2 e 140; 7,1 e 410; 6,4 e 183 e 6,8oc and 745 gd, respectively. it was estimated that this species complete three to four annual generations. in the three regions, one generation occurs during the winter.
Botton, Marcos;Nakano, Octávio;Kovaleski, Adalécio;
Ciência Rural , 2002, DOI: 10.1590/S0103-84782002000200026
Abstract: a survey of parasitoids associated with apple leafroller bonagota cranaodes and the level of parasitism was evaluated in commercial apple orchards in vacaria, rs, brazil (28o30's/50o54w) by collecting eggs, larvae and pupae from january to june, 1997. three species of parasitoids (apanteles sp, earinus sp. and itoplectis brasiliensis) were found associated with b. cranaodes larvae and pupae. i. brasiliensis was the most frequent specie, with 51.7 % of insects collected. the average of parasitism was 1.7 %, with maximum of 6.7 % in the first week of may. no parasitoids were found associated with b. cranaodes eggs. mortality caused by parasitoids was not considered an important agent of control of the apple leafroller in commercial apple orchards of southern brazil.
Efeito do raleio de frutos sobre o dano de Bonagota cranaodes (Meyrick, 1937) (Lepidoptera: Tortricidae) em cultivares de macieira
Botton, Marcos;Nakano, Octávio;Kovaleski, Adalécio;
Ciência Rural , 2000, DOI: 10.1590/S0103-84782000000400027
Abstract: the effect of fruit thinning on apple leafroller bonagota cranaodes (meyrick, 1937) (lepidoptera: tortricidae) damage was evaluated in commercial orchards of fuji and gala cultivars. at harvest, appies produced in clusters of two, three or four fruits and isolated ones were evaluated for percentage of pest damage. a positive correlation between lhe number of fruits per cluster and percentage of appie leafroller damage was observed. the injury to fruits was higher during late season cultivar fuji (harvested in april) than early season gala (february). fruits produced in isolated floral buds were significativelly less damaged by the pest than in cluster, indicating that is possible io use apple thinning to reduce apple leafroller damage in commercial orchards.
Controle químico da lagarta-enroladeira (Bonagota cranaodes Meyrick) na cultura da macieira
Pesquisa Agropecuária Brasileira , 2000, DOI: 10.1590/S0100-204X2000001100003
Abstract: apple leafroller, bonagota cranaodes meyrick (lepidoptera: tortricidae), is one of the major apple pests in southern brazil. laboratory and field experiments were conducted with chlorpyriphos-ethyl (lorsban 480 ce - 72 g of a.i./100 l), methidathion (supracid 400 - 60 g of a.i./100 l), phosmet (imidan 50 pm - 100 g of a.i./100 l), trichlorphon (dipterex 500 - 150 g of a.i./100 l), tebufenozide (mimic 240 sc - 21.6 g of a.i./100 l), fenitrothion (sumithion 500 ce - 75 g of a.i./100 l) and carbaryl (sevin 850 pm - 153 g of a.i./100 l) to control the pest in apple orchards. in laboratory, all insecticides caused 100% of mortality on first-instars larvae while fourth and fifth instar larvae were satisfactorily controlled only using chlorpyriphos-ethyl, tebufenozide and trichlorphon. chlorpyriphos-ethyl application after peaks of b. cranaodes males capture in pheromone traps resulted in less than 1% of fruit damage at harvest, while tebufenozide resulted in 4.6% compared to 9.8% in a non-treated area.
Controle químico da lagarta-enroladeira (Bonagota cranaodes Meyrick) na cultura da macieira
Pesquisa Agropecuária Brasileira , 2000,
Abstract: A lagarta-enroladeira, Bonagota cranaodes Meyrick (Lepidoptera: Tortricidae), é considerada uma das principais pragas da macieira no Brasil. Com o objetivo de selecionar inseticidas visando ao controle do inseto, experimentos de laboratório e campo foram conduzidos com clorpirifós-etil (Lorsban 480 CE - 72 g de i.a./100 L), metidatiom (Supracid 400 - 60 g de i.a/100 L), fosmet (Imidan 50 PM - 100 g de i.a./100 L), triclorfom (Dipterex 500 - 150 g de i.a./100 L), tebufenozide (Mimic 240 SC - 21,6 g de i.a./100 L), fenitrotiom (Sumithion 500 CE - 75 g de i.a./100 L) e carbaril (Sevin 850 PM - 153 g de i.a./100 L). Todos os inseticidas provocaram 100% de mortalidade de lagartas recém-eclodidas em laboratório, porém, o controle de lagartas de 4o e 5o ínstar, após seu estabelecimento nas plantas de macieira, somente foi satisfatório com clorpirifós-etil, tebufenozide e triclorfom. A pulveriza o de clorpirifós-etil, após picos de captura dos machos de B. cranaodes com armadilhas de ferom nio sexual resultaram em menos de 1% de frutos danificados na colheita em compara o com 4,6% com tebufenozide, e 9,8% na testemunha.
Botton Marcos,Nakano Octávio,Kovaleski Adalécio
Ciência Rural , 2002,
Abstract: Os parasitóides associados à lagarta-enroladeira-da-macieira Bonagota cranaodes e o índice de parasitismo em pomares comerciais foram avaliados em Vacaria, RS (28o30'S/50o54W). A coleta das fases de desenvolvimento do inseto foi realizada no período de janeiro a junho de 1997. Lagartas de B. cranaodes foram parasitadas por insetos da família Braconidae (Apanteles sp e Earinus sp.) e Ichneumonidae (Itoplectis brasiliensis), sendo esta, a espécie mais freqüente, com 51,7% dos indivíduos coletados. O índice médio de parasitismo foi de 1,7 % com máximo de 6,3 % na primeira quinzena de maio. N o foram encontrados parasitóides associados à fase de ovo de B. cranaodes. Com base nestas informa es, verificou-se que o parasitismo n o é um fator importante de mortalidade da lagarta-enroladeira nos pomares comerciais de macieira.
Concentra??o e tempo de libera??o do ferom?nio sexual sintético de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) na cultura da macieira
Kovaleski, Adalecio;Botton, Marcos;Nakano, Octavio;Vilela, Evaldo F.;Eiras, álvaro E.;
Neotropical Entomology , 2003, DOI: 10.1590/S1519-566X2003000100006
Abstract: the effect of five dosis of the synthetic sex pheromone of bonagota (=phtheochroa) cranaodes (meyrick) (a 9:1 blend of e,z 3,5 dodecanyl acetate and z9 hexadecenyl acetate) and the duration of the synthetic pheromone under field conditions were evaluated in a commercial apple orchard in vacaria, rs, brazil. no significant differences were observed among concentrations ranging from 0.25 to 3.0 mg per rubber septum. delta traps baited with two virgin females were ca. four times more attractive than those baited with the synthetic sex pheromone at the dosis of 3 mg per septum. rubber septa containing this amount of synthetic sex pheromone remained attractive for 120 days. comparing number of males captured in traps baited with the synthetic pheromone and males captured in traps with virgin females during seven months, a significant and positive correlation is observed, demonstrating that the seasonal variations in b. cranaodes population density are detected using the synthetic sex pheromone in delta traps.
On Historical Value at Risk under Distribution Uncertainty  [PDF]
Atsushi Iizuka, Yumiharu Nakano
Journal of Mathematical Finance (JMF) , 2015, DOI: 10.4236/jmf.2015.52010
Abstract: We investigate the asymptotics of the historical value-at-risk under capacities defined by sublinear expectations. By generalizing Glivenko-Cantelli lemma, we show that the historical value-at-risk eventually lies between the upper and lower value-at-risks quasi surely.
Photoinduced Surface Relief Grating Formation for a Single Crystal of 4-Aminoazobenzene
Hideyuki Nakano
International Journal of Molecular Sciences , 2010, DOI: 10.3390/ijms11041311
Abstract: Photoinduced surface relief grating (SRG) formation for a single crystal of 4-aminoazobenzene was investigated. It was found that SRG could be inscribed on the (001) surface of the crystal, which might suggest that the photoinduced SRG formation is a general phenomenon observed for single crystals of azobenzene-based molecules as well as for azobenzene-based amorphous systems. In addition, the dependences of the SRG formation upon the orientation of the sample crystal and upon the polarization of the writing beams were found to be different from those observed for previously reported crystalline systems.
A produ??o independente e a desverticaliza??o da cadeia produtiva da música
Nakano, Davi;
Gest?o & Produ??o , 2010, DOI: 10.1590/S0104-530X2010000300015
Abstract: the phonographic industry has undergone successive changes since the 1950s driven by technological innovation. it used to be dominated by a few large integrated firms, and a limited variety of products, but small and medium-sized enterprises (smes) have grown in importance and are considered the drivers of change and innovation. in that new scenario, specialized service providers perform manufacturing and logistics activities, and the market is shared between large and smes. the internet and mobile communications have opened new possibilities for content distribution, and the phonographic industry has been facing uncertainties since the early 2000. this study describes the evolution of the phonographic industry and analyzes two independent brazilian firms, which developed competencies to explore new business possibilities in the current business scenario.
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