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| Silva,Flávia Cloclet da; Ventura,Maurício Ursi; Morales,Lauro. |
| Traps lured with semiochemical have been proposed to manage the coffee berry borer, coffee planting is however made under several environmental conditions that may affect the efficacy of traps. Several trap designs and variations were proposed and, therefore, a series of field experiments was carried out to capture coffee berry bores in traps disposed in a low density coffee plantations in the Northern part of the State of Paraná, Brazil. Traps were composed of plastic bottles (2 L) with a window (13 × 18 cm). Ethanol (E), Methanol (M) and coffee oil alone did not improve the capture when transparent traps with a 2 mm hole in the vial dispenser were used; traps lured with E : M mixtures (1:1, 1:2, 1:3) caught similar and higher number of insects than the... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Semiochemical; Attractant; Volatile; Trap color. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600010 |
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| Morales,Lauro; Moscardi,Flávio; Sosa-Gómez,Daniel R.; Paro,Fábio E.; Soldorio,Ivanilda L.. |
| Boric acid concentrations (0.02,0.03,0.045,0.067 and 0.101 g/100 ml of diet) were evaluated in combination with the Anticarsia gemmatalis Hüb. nuclear polyhedrosis virus (AgNPV) for enhanced virali activity against the insect. Seven days after inoculation, the median lethal concentration (LC50) was 1.52 x 10(5) for the AgNPV alone and 7.95 x 10² for the NPV mixed with 0.045g of boric acid/100 ml of diet. At subsequent evaluation dates (9,11 and 14 days after inoculation) LC50's for NPV+boric acid were ca. 4x lower than those observed for the NPV alone. The median lethal time (LT50) was 13.6 days when the NPV was used alone, while, when in mixture with increasing concentrations of boric acid, LT50 values ranged from 13.7 days (boric acid at 0.02g/100 ml of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Velvetbean caterpiliar; Biological control; Baculovirus. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100016 |
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| Morales,Lauro; Cena,Pedro; Mendes Neto,Fernando P.; Costa,Servilio F.; Oliveira,Fernando T. de. |
| Avaliou-se a resistência ao bicudo Anthonomus grandis Boh. ao tripes Frankliniella sp. e ao pulgão do algodoeiro Aphis gossypii Glover, dos genótipos do algodoeiro (Gossypium hirsutum) Sicot 3, Oklahoma Red, Siocra, Paraná 3 e da cultivar IAC-20 (testemunha). Para o bicudo foram feitas quatro avaliações, observando-se, diretamente nas plantas, botões com puncturas de alimentação e/ou oviposição. Para tripes e pulgões foram avaliadas, 32 dias após a emergência, plantas mortas e/ou comprometidas pelo ataque. Na primeira avaliação, Sicot 3 apresentou 4,6 % de botões atacados, enquanto a IAC-20 apresentou 48,1 %; 130 dias após a emergência, o número de botões atacados foi semelhante em todos os genótipos. Oklahoma Red apresentou o menor número (3,0%) de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Não preferência; Bicudo; Tripes; Pulgão. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100013 |
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