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| Filgueiras,Rosenya Michely Cintra; Pastori,Patrik Luiz; Pereira,Fabrício Fagundes; Coutinho,Cristiane Ramos; Kassab,Samir Oliveira; Bezerra,Laura Carla Marinho. |
| ABSTRACT: Fruit bagging is an efficient mechanical control technique used in fruit growing. However, to date, few studies have evaluated the efficacy of bagging in the cultivation of vegetables, including tomato crops. The objective of this study was to evaluate the effectiveness of bagging of tomato flowers and/or fruits using a non-woven fabric (NWF) for the control of Helicoverpa spp., Neoleucinodes elegantalis, and Tuta absoluta, to evaluate the effect of this technique on the final yield, and determine the optimal period for bagging. Tests were conducted in a commercial crop of staked ‘Valerin’ tomato plants located in the municipality of Ubajara, Ceará State, Brazil. The experimental design was randomized blocks with a 2x4 factorial design (sprayed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Mechanical control; Neoleucinodes elegantalis; Productivity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600152 |
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| Barbosa,Rogério Hidalgo; Kassab,Samir Oliveira; Pereira,Fabricio Fagundes; Rossoni,Camila; Costa,Daniele Perassa; Berndt,Maykon Avalo. |
| Erinnyis ello is one of the main pests of the cassava crop, and its natural enemies including egg, caterpillar, and pupal parasitoids. The aim of this study was to evaluate parasitism and biological aspects of Tetrastichus howardi on E. ello pupae. In general, parasitism and emergence of T. howardi on E. ello pupae was 64%. Cycle duration (egg to adult) of T. howardi on E. ello pupae was of 20.12±0.15 days at 25±2°C, 70±10% relative humidity, and 14-h photophase. The progeny of T. howardi by E. ello pupae was of 466±0.44. Longevity of T. howardi females and males was of 15±0.57 and 12±0.93 days, respectively. The sex ratio was of 0.95±0.06, and the ratio of females per female was 44±0.45. T. howardi parasite and develops on E. ello pupae. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Alternative host; Biological control; Cassava; Pupal parasitoid.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200185 |
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| Barbosa,Rogério Hidalgo; Tabaldi,Luciane Almeri; Miyazaki,Fábio Rodrigo; Pilecco,Márcio; Kassab,Samir Oliveira; Bigaton,Daísa. |
| A slight increase in the levels of a certain nutrient can cause a significant increase in crop yield or can cause phytotoxicity symptoms. Thus, the aim of this study was to evaluate the effect of foliar application of copper (Cu) on the growth and yield of DG-501 maize. The experiment was carried out between December 2009 and April 2010 in conventional tillage. When plants were with six to eight leaves, Cu (0, 100, 200, 300, 400, 500 and 600g ha-1) was applied to the leaves. Treatments were arranged in randomized complete block with five replications. When 50% of the plants were in flowering, it was evaluated the plant height, culm diameter, height of the first ear insertion, leaf area, and chlorophyll content. At harvest, it was evaluated diameter and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilization; Micronutrient; Toxicity; Zea mays. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000900005 |
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