Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Search Results: 1 - 10 of 4759 matches for " OCTáVIO;KOVALESKI "
All listed articles are free for downloading (OA Articles)
Page 1 /4759
Display every page Item
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.
As pragas das hortali?as: seu controle e o selo verde
Nakano, Octávio;
Horticultura Brasileira , 1999, DOI: 10.1590/S0102-05361999000100002
Abstract: vegetable crops in brazil cover an area of about 326 thousand hectares. all vegetables require insecticide application, which represents a threat not only to producers due to risks of intoxications, but also to consumers, due to residues in food. this situation has arisen because, in the majority of the instances, there are few alternatives of chemicals for pest control. biological control is rarely exploited because, in case of short-cycle plants such as most vegetables, there is little time for effective action of predators and parasitoids. physical measures, on the other hand, are showing a relative arise in importance, with occasional use of light, pheromone, and mostly yellow color traps. however, when outbreaks of exotic or native pests occur, associated with favorable conditions, only chemical control can mitigate the economic losses in the crop. for this reason, and as a result of the increasing public awareness regarding health and the environment, the creation of a green-certificate or quality-certificate, which assures that, if chemicals are used in the development of products, they must be used properly, is a task that must be imposed immediately, with authorities responsible for instructing the process. in the state of s?o paulo the secretary of agriculture began the implementation of a quality-certificate for strawberries produced in the atibaia county. other vegetables are now being considered for inclusion in the a green-certificate scheme.
O Ensino das Ciências Sociais no 1o e 2o graus
Ianni, Octávio;
Cadernos CEDES , 2011, DOI: 10.1590/S0101-32622011000300002
Abstract: lecture in the department of education and pedagogical standards of the state of s?o paulo (cenp/sp) in 1985 at the height of a campaign for inclusion of the discipline sociology in the brazilian curriculum. this is a historical record of a teacher's participation in this debate. in this text the author stresses the important role of sociology in school, allowing students to question and think up new possibilities of living in society.
Tipos e mitos do pensamento brasileiro
Ianni Octávio
Sociologias , 2002,
A voca o política das ciências sociais
Octávio Ianni
Trans/Form/A??o , 1975, DOI: 10.1590/s0101-31731975000100004
Page 1 /4759
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.