inseticidas sistêmicos granulados no controle das ninfas móveis das cigarras e seus efeitos na produtividade de cafeeiros granular systemic insecticides for cicada mobile nymphs and their effects on coffee yield
Clicks: 181
ID: 243447
1989
Procurou-se, no presente trabalho, observar a eficiência dos inseticidas sistêmicos granulados aldicarbe a 10%, carbofurã a 5% e dissulfotom a 2,5 e 10%, em dois tipos de solo, no controle das ninfas móveis das cigarras do cafeeiro, predominantemente Quesada gigas em lavouras instaladas nos municípios de Franca e ltirapuã, SP. Utilizaram-se doses desses inseticidas próximas às recomendadas para o controle do bicho-mineiro, as quais proporcionaram uma redução média de 67,5 e 54,1% na população das ninfas móveis da praga, respectivamente, em solo arenoso e argiloso. Esses inseticidas, quando aplicados por quatro anos consecutivos, proporcionaram um aumento médio de produção de 175, 227 e 246% para o aldicarbe, cárbofurã e dissulfotom respectivamente.
The present research was conducted to evaluate the efficiency and yield increase by granular systemic insecticides to control cicades, mostly Quesada gigas, in two infested coffee plantations: one grown in sandy and the other in clay soils in the State of São Paulo, Brasil. The active ingredients tested were aldicarbe, at 10%, carbofurã, at 5% and dissulfotom, at 2.5 and 10%, applied once in dosages normally used for coffee leaf miner control. An average reduction of 67.5% on mobile nymphs population was observed in the sandy soil and 54.1% in the clay soil plantations. The effect of the above treatments on productivity of coffee was tested over a four year period (1981-1985), and the percent yield increase was on the average: 175, 227 and 246% from aldicarbe, carbofurã and dissulfotom, respectively.
The present research was conducted to evaluate the efficiency and yield increase by granular systemic insecticides to control cicades, mostly Quesada gigas, in two infested coffee plantations: one grown in sandy and the other in clay soils in the State of São Paulo, Brasil. The active ingredients tested were aldicarbe, at 10%, carbofurã, at 5% and dissulfotom, at 2.5 and 10%, applied once in dosages normally used for coffee leaf miner control. An average reduction of 67.5% on mobile nymphs population was observed in the sandy soil and 54.1% in the clay soil plantations. The effect of the above treatments on productivity of coffee was tested over a four year period (1981-1985), and the percent yield increase was on the average: 175, 227 and 246% from aldicarbe, carbofurã and dissulfotom, respectively.
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Authors | ;Wallace Gonçalves;Ana Maria Faria |
Journal | revista espanola de salud publica |
Year | 1989 |
DOI | 10.1590/S0006-87051989000100009 |
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