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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  [cached]
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.
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.
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.
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.
Biology of Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) on seven natural foods
Bentancourt, Carlos M.;Scatoni, Iris B.;Gonzalez, Alvaro;Franco, Jorge;
Neotropical Entomology , 2004, DOI: 10.1590/S1519-566X2004000300004
Abstract: the effect of seven natural diets on the development and reproduction of bonagota cranaodes (meyrick) was evaluated under laboratory conditions. the experiments were carried out at the temperature of 23 ± 1oc, with 70 ± 10% of rh and a photoperiod of 16:8h (l:d). the larvae were reared on apple, grapevine and honeysuckle (lonicera japonica). on the first two foods three types of diet were used: spring leaves, summer leaves and fruits. the number of instars varied from five to seven. the larvae reared on apple leaves had, in general, fewer instars than those reared on grapevine and honeysuckle leaves. the duration of larval development differed between diets. the larvae reared on spring apple leaves showed the shortest duration, and those on fruit the longest. the larvae survival was lower on fruit than on leaves, and on apples it was particularly low (17.8%). the female pupae reared on honeysuckle were heavier than those reared on the other diets. the cycle from the egg to the emergence of adults varied between 41 days on spring apple leaves and 60 days on apples. the females reared on honeysuckle and spring apple leaves were the most fecund, whereas the females on apples did not oviposit. honeysuckle and spring leaves were the most suitable foods. apples, on the other hand, were the least suitable diet, which leads one to think that larvae could hardly complete their whole cycle on this fruit.
Efeito de dietas artificiais para a alimenta??o de adultos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae), em laboratório
Fonseca, Fabiana Lazzerini da;Manfredi-Coimbra, Silvana;Foresti, Josemar;Kovaleski, Adalecio;
Ciência Rural , 2005, DOI: 10.1590/S0103-84782005000600001
Abstract: adults of bonagota cranaodes (meyrick) (lepidoptera: tortricidae) were maintained in cages of transparent pvc without food, with water, and fed with honey solution at 10% and with honey solution at 10% + 25% of beer only with water and without feeding to evaluate their fecundity, longevity and viability of eggs in growth to (25±1°c and 70±10% of ru). the longevity of females and males was longer and number of eggs/female were obtained in the mean substratum composed of honey at 10% (17,75 days, 17,35 days and 14,07 eggs/posture) and honey at 10% + 25% of beer (18,25 days, 18,20 days and 12,71 eggs/posture). the viability of the eggs and the duration of the embryonic period was similar in all the treatments. the mean with honey at 10% + 25% of beer, presented effects similar to the mean composed with honey at 10% regarding to the longevity, fertility and viability of eggs of b. cranaodes. however, due to the lower cost, the diet based only in honey represents the best choice in laboratory for maintenance rearing of this insect.
Biologia e exigências térmicas de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) sobre ovos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae)  [cached]
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.
Efeito de dietas artificiais para a alimenta o de adultos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae), em laboratório  [cached]
Fonseca Fabiana Lazzerini da,Manfredi-Coimbra Silvana,Foresti Josemar,Kovaleski Adalecio
Ciência Rural , 2005,
Abstract: Adultos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) submetidos a tratamentos com água, solu o de mel a 10%, solu o de mel a 10% + 25% de cerveja e sem alimento foram mantidos em gaiolas de PVC transparente para avaliar a fecundidade, longevidade e viabilidade de ovos em laboratório a 25?1degreesC e 70?10% de UR. Maior longevidade de fêmeas e machos e número de ovos/fêmea foram obtidos nos substratos compostos de mel a 10% (17,75 dias, 17,35 dias e 14,07 ovos/postura) e mel a 10% + 25% de cerveja (18,25 dias, 18,20 dias e 12,71 ovos/postura). A viabilidade dos ovos e a dura o do período embrionário foram semelhantes em todos os tratamentos. O substrato alimentar mel a 10% + 25% de cerveja, apresentou efeitos semelhantes ao substrato composto de apenas mel a 10% sobre a longevidade, fertilidade e viabilidade dos ovos. Entretanto, devido ao menor custo, a dieta a base de mel apresenta melhor potencial de utiliza o para manuten o da cria o do inseto em laboratório.
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