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Possível resistencia a geada, conferida por inseticidas fosforados sistémicos, aplicados para o controle de bicho mineiro do cafeeiro, Perileucoptera coffeella (Guerin-Meneville)

by Almeida, P.R. de; Arruda, H.V. de.
Publisher: 1975ISSN: 0045-2041.Subject(s): RESISTENCIA A LA TEMPERATURA | HELADA | INSECTICIDAS | ACCION SISTEMICA | CONTROL DE INSECTOS | EFECTOS DE LOS INSECTICIDAS | LEUCOPTERA COFFEELLA | TEMPERATURE RESISTANCE | FROST | INSECTICIDES | SYSTEMIC ACTION | INSECT CONTROL | RESISTANCE A LA TEMPERATURE | GEL | INSECTICIDE | ACTION SYSTEMIQUE | LUTTE ANTIINSECTE In: Biológico (Brasil) v. 41(8) p. 246-247Summary: Possible resistance to the frost, confered by systemic phosphorated insecticides, applied to the control of Perileucoptera coffeella (Guerin-Men). The main objective of this note is to communicate an observation made in a field experiment, carried out in the Marilia county, State of Sao Paulo, to control the "bicho mineiro" (Perileucoptera coffeella). The treatments included two systemic insecticides - Thimet, Disyston - with several number of applications. A curious fact was observed - the coffee's plants which plots received treatments showed a great resistance to the frost effects when compared with test plots. In these one was observed a complete burning of the plants whereas in the treated plots were observed a slight burning in the borders of the leaves. Future experiments will be conducted to confirm and explain the observed fact
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++ Ilus. Sum. (En)

Possible resistance to the frost, confered by systemic phosphorated insecticides, applied to the control of Perileucoptera coffeella (Guerin-Men). The main objective of this note is to communicate an observation made in a field experiment, carried out in the Marilia county, State of Sao Paulo, to control the "bicho mineiro" (Perileucoptera coffeella). The treatments included two systemic insecticides - Thimet, Disyston - with several number of applications. A curious fact was observed - the coffee's plants which plots received treatments showed a great resistance to the frost effects when compared with test plots. In these one was observed a complete burning of the plants whereas in the treated plots were observed a slight burning in the borders of the leaves. Future experiments will be conducted to confirm and explain the observed fact

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