| Journal: | Scientia agricola |
| Database: | PERIÓDICA |
| System number: | 000284431 |
| ISSN: | 0103-9016 |
| Authors: | Yamamoto, Pedro Takao1 Roberto, Sergio Ruffo Pria-Junior, Wolney Dalla |
| Institutions: | 1Fundo de Defesa da Citricultura, Centro de Pesquisas Citricolas, Araraquara, Sao Paulo. Brasil |
| Year: | 2000 |
| Season: | Jul-Sep |
| Volumen: | 57 |
| Number: | 3 |
| Pages: | 415-420 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | Methods of biological control of Phyllocnistis citrella in citrus are inefficient and chemical control is limited to a few options. The purpose of this study was to determine the efficiency of systemic insecticides to control Oncometopia facialis (Signoret) (Hemiptera: Cicadellidae), Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae), and Toxoptera citricida (Kirkaldy) (Hemiptera: Aphididae) in citrus plant. The tests was performed enclosing the insects on branches, using five adults of O. facialis per plants. The citrus leaf miner were assessed on three new branches per plant, and for aphids, the number of infested branches was quantified. The insecticides acephate Pellet 970, vamidothion CE 300, monocrotophos CE 400, acetamiprid PM e SL, and imidacloprid SL were efficient to control O. facialis, however with different residual periods, ranging from 12 to 104 days. Acetamiprid SL (1.0 g a.i./plant) and imidacloprid were the most efficient. All tested insecticides were efficient to control T. citricida and P. citrella, except acetamiprid PM (0.4 and 0.6 g a.i./plant). Acetamiprid and imidacloprid showed a period for citrus leaf miner control greater than 42 days |
| Portuguese abstract | O controle biológico de insetos vetores de Phyllocnistis citrella em citros tem se mostrado ineficiente e o uso de inseticidas apresenta poucas opções. O objetivo do trabalho foi avaliar a eficiência de inseticidas sistêmicos, aplicados via tronco, no controle de Oncometopia facialis (Signoret) (Hemiptera: Cicadellidae), Phyllocnistis citrella Staiton (Lepidoptera: Gracillaridae) e Toxoptera citricida (Kirkaldy) (Hemiptera: Aphididae) em citros. A eficiência para O. facialis foi determinada pelo método de confinamento, utilizando-se 5 cigarrinhas adultas por repetição. Para P. citrella avaliou-se o número de folhas com lagartas em 3 ramos/planta e para T. citricida o número de ramos infestados. O acefate Pellet 970, vamidotion CE 300, monocrotofós CE 400, acetamipride PM e SL, e imidaclopride SL, nas doses testadas, controlam O. facialis, mas com períodos residuais variando de 12 a 104 dias, sendo os mais eficientes acetamipride SL (1,0 g i.a. por planta) e imidaclopride (1,0 g i.a. por planta). Os inseticidas acefate, vamidotion, monocrotofós, acetamipride e imidaclopride foram eficientes no controle de T. citricida e de P. citrella, com exceção de acetamipride PM nas doses de 0,4 e 0,6 g i.a. por planta. Acetamipride e imidaclopride apresentaram período de controle para P. citrella superior a 42 dias |
| Disciplines: | Agrociencias |
| Keyword: | Fitopatología, Frutales, Insecticidas, Citrus sinensis, Oncometopia facialis, Phyllocnistis citrella, Toxoptera citricida |
| Keyword: | Agricultural sciences, Fruit trees, Phytopathology, Insecticides, Citrus sinensis, Oncometopia facialis, Phyllocnistis citrella, Toxoptera citricida |
| Full text: | Texto completo (Ver HTML) |
