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Venzon,Madelaine; Krüger,Rodrigo Ferreira; Soto,Alberto; Tuelher,Edmar de Souza; Bonomo,Italo Santos; Fadini,Marcos Antonio Matiello; Fonseca,Maira Christina Marques. |
The objective of this work was to evaluate the toxicity of organic farming‑compatible products to the coffee leaf miner Leucoptera coffeella. Lime sulphur, enriched Bordeaux mixture (Viça Café Plus), and the "supermagro" biofertilizer were first tested in laboratory. The most promising product was tested afterwards under field conditions. In laboratory, different concentrations of each product were applied on L. coffeella eggs and on infested coffee‑mined leaves. Only lime sulphur had ovicidal effects at an acceptable concentration (1.6%) for field applications, but no significant effect on larvae mortality was found. Enriched Bordeaux mixture and the "supermagro" biofertilizer had no effect on L. coffeella eggs and larvae. In the field trial, biweekly or... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leucoptera coffeella; Biofertilizer; Bordeaux mixture; Lime sulphur. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000300001 |
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Ferreira,Tamara Esteves; Fadini,Marcos Antonio Matiello; Mendes,Simone Martins; Marinho,Cidália Gabriela Santos; Cruz,Ivan. |
ABSTRACT: The study of non-target organisms such as mites, can provide information about the possible effects of transgenic maize cultivars on the arthropod community. This study aimed to evaluate the abundance of phytophagous mites in the area of Bt maize and evaluate the instantaneous population growth rate, and food preference of phytophagous mites on Bt maize. We registered the species occurrence and the number of adult mite individuals on four maize cultivars, one non-Bt 30F35, and three containing the proteins Cry1Ab (30F35 Yg), Cry1F (30F35 Hx) and Vip3a (Impacto Viptera). Cry proteins disrupt the midgut epithelium of insect pests. The food preference and instantaneous population growth rate (ri) were evaluated using the two-spotted spider mite... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant defense; Non-target organisms; Genetically modified organisms Bt protein; Diptilomiopidae; Eriophyidae; Tetranychidae. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000202 |
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