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Search Results: 1 - 10 of 8066 matches for " Kovaleski Adalécio "
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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.
PARASITóIDES ASSOCIADOS à LAGARTA-ENROLADEIRA Bonagota cranaodes (MEYRICK, 1937) (LEPDOPTERA: TORTRICIDAE) NA CULTURA DA MACIEIRA
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
BOTTON, MARCOS;NAKANO, OCTáVIO;KOVALESKI, ADALéCIO;
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
BOTTON MARCOS,NAKANO OCTáVIO,KOVALESKI ADALéCIO
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.
PARASITóIDES ASSOCIADOS à LAGARTA-ENROLADEIRA Bonagota cranaodes (MEYRICK, 1937) (LEPDOPTERA: TORTRICIDAE) NA CULTURA DA MACIEIRA
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.
Biologia e exigências térmicas de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) sobre ovos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae)
Borba, Regina da Silva;Garcia, Mauro Silveira;Kovaleski, Adalécio;Comiotto, Andressa;Cardoso, Renata Loureiro;
Ciência Rural , 2006, DOI: 10.1590/S0103-84782006000500001
Abstract: this work was aimed at studyng the biology of trichogramma in laboratory, in search of its use in integrated management programs to control bonagota cranaodes in culture of the apple. the biology of trichogramma bruni nagaraja and of two lineages (l3 and l4) of trichogramma pretiosum on eggs of b. cranaodes was done such their thermal demands and annual number of generations. the line l3 presented more parasitism (52.3%), however, the feseability was similar among the lineages studied; with biological cycle of 8.7 days; the longevity of females was 10.65 days; low threshold temperature of 11.35°c and thermal requirement of 128.70 gd, the number of annual generations this line in laboratory was 47.22 and 13.59 for vacaria-rs climate conditions. the low parasitism of the t. bruni and of the lineage l4 of t. pretiosum can be related to the layer of secretion presented on the laying of the pest. although this parasitism is considered low, the use of these lineages cannot be discarded the integrated apple production, systens. new studies shal be accomplished in field conditions.
Biologia e exigências térmicas de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) sobre ovos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae)
Borba Regina da Silva,Garcia Mauro Silveira,Kovaleski Adalécio,Comiotto Andressa
Ciência Rural , 2006,
Abstract: Este trabalho teve como objetivo estudar a biologia de Trichogramma em laboratório, visando a sua utiliza o em programas de manejo integrado para o controle de Bonagota cranaodes na cultura da macieira. A biologia de Trichogramma bruni Nagaraja e de duas linhagens (L3 e L4) de Trichogramma pretiosum foi realizada sobre ovos de B. cranaodes. Além disso, suas exigências térmicas e o número anual de gera es também foram determinados. A linhagem L3 apresentou maior parasitismo (52,3%), no entanto, a viabilidade foi semelhante entre as linhagens estudadas, com ciclo evolutivo de 8,7 dias, longevidade de fêmeas de 10,65 dias, temperatura base de 11,35degreesC e constante térmica de 128,70GD. O número de gera es anuais dessa linhagem em laboratório foi de 47,22 e de 13,59 gera es para as condi es da regi o de Vacaria - RS. O baixo parasitismo de T. bruni e da linhagem L4 de T. pretiosum pode estar ligado à camada de secre o existente sobre as posturas da praga. Embora este parasitismo seja considerado baixo, a utiliza o destas linhagens n o pode ser descartada dentro do sistema de Produ o Integrada da Ma , devendo novos estudos serem realizados em condi es de campo.
Persistência de agrotóxicos utilizados na produ??o integrada de ma?? a Trichogramma pretiosum
N?rnberg, Sandro Daniel;Grützmacher, Anderson Dionei;Kovaleski, Adalécio;Finatto, Jonas Alex;Paschoal, Murilo Damé Fonseca;
Ciência e Agrotecnologia , 2011, DOI: 10.1590/S1413-70542011000200011
Abstract: in the integrated production of apple (ipa) the biological control is an important control tactics, however, it may be limited by the use of pesticides. thus, the objective of this work was to evaluate the persistence (duration of harmful activity) of ten pesticides indicated in the ipa on the egg parasitoid trichogramma pretiosum. insect adults were exposed to pesticide residues on the leaves of vine cv. isabel. the residue effect was evaluated on parasitism of t. pretiosum, at 3, 10, 17, 24 and 31 days after the treatment, using the iobc standard methodology. the reduction in capacity of parasitism of t. pretiosum was used to measure the effect of the pesticides. the results showed that the products, commercial name/active ingredient (g or ml commercial formulation.100 l-1), insecticide malathion? 1000 ce/malathion (100) and the fungicides domark? 100 ce/tetraconazol (50), manzate? 800 /mancozeb (200), mancozeb sipcam? /mancozeb (200) and metiltiofan? /thiophanate-methyl (90) were classified as short lived (< 5 days); the insecticide/acaricid vertimec? 18 ce/abamectin (100) as slightly persistent (5-15 days of harmful action), the insecticide lorsban? 480 br/chlorpyrifos (150) as moderately persistent (16-30 days of harmful action), the insecticides imidan? 500 pm/phosmet (200) and sevin? 480 sc/carbaryl (360) and the fungicide/acaricid kumulus? df/sulphur (600) were persistent (> 31 days of harmful action) to t. pretiosum.
Deposi??o de agrotóxicos pulverizados na cultura da ma??
Chaim, Aldemir;Botton, Marcos;Scramin, Shirley;Pessoa, Maria Concei??o Peres Young;Sanhueza, Rosa Maria Valdebenito;Kovaleski, Adalécio;
Pesquisa Agropecuária Brasileira , 2003, DOI: 10.1590/S0100-204X2003000700014
Abstract: the objective of this work was to evaluate the distribution of pesticide deposition on two apple varieties (malus domestica borkh). liquid spray with rhodamine as tracer was sprayed by trailed aircarrier equipment, with two types of calibrations. in one of them it was used the ja-1, ja-2 and ja-3 cone nozzles, and in the other, avi 110 iso-04 fan nozzles and ja-1 cone nozzles. there were no differences among the calibrations, but the deposition on the plants decreased from the apical to the basal region. on all tested calibrations, 25% of the applied tracer was wasted on the soil.
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