Ensayo de campo sobre la capacidad de migración del insecticida thiamethoxam 25% inyectado en el tronco de la palmera datilera y sobre su eficacia en el control de la cochinilla roja (Phoenicococcus marlatti Cockerell)
In the framework of the program of biological control of the red date scale, Phoenicoccocus marlatti, Cockerell, that is carrying on the Phoenix Research Station in the palm grove of Elche and that begun in 1997, has been realized an evaluation of the effectiveness that repeated releases of Rhyzobiu...
Gespeichert in:
Veröffentlicht in: | Boletin de sanidad vegetal, Plagas Plagas, 2008, Vol.34 (1), p.129-134 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | spa |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | In the framework of the program of biological control of the red date scale, Phoenicoccocus
marlatti, Cockerell, that is carrying on the Phoenix Research Station in the palm grove of Elche
and that begun in 1997, has been realized an evaluation of the effectiveness that repeated
releases of Rhyzobius lophanthae, Blaisdell, in this palm grove have on the control of the scale.
On a sample of 23 orchards of Elche palm grove that correspond to around 100 hectares on a
total of 170 hectares that constitutes the whole historical palm grove, was carried out a study of
the evolution population of P. marlatti from October 2004 to September 2005. Two types of
sample were used: one qualitative by means of the annotation of the grade of contamination of
thirty palms selected randomly in each one of the orchards; a second by means of the
quantitative analysis of the population of red scales present in a sample of palm leaves,
distinguishing three parts for leaf (it bases, its medium part, its terminal part). The presence of
R. lophantae in the palms was registered during the whole duration of the study.
The results demonstrate that the population of red scale stayed to low levels during the whole
period of the study, with very few fluctuations. A generation of P.marlatti was observed in the
month of May and the presence of R. Lophanthae was registered during the whole year with a
considerable increase in summer. En el marco del programa de control biológico de la cochinilla roja de la palmera
(Phoenicoccocus marlatti, Cockerell, 1907) que está llevando a cabo la Estación Phoenix en el
palmeral de Elche, iniciado en 1997, se ha realizado una evaluación de la eficacia sobre el
control de la cochinilla de las sueltas repetidas de Rhyzobius lophanthae Blaisdell.
Sobre una muestra de 23 huertos del palmeral ilicitano, que corresponden a unas 100 hectáreas
sobre un total de 170 hectáreas que cubre el palmeral histórico, se realizó un seguimiento de la
población de P. marlatti desde octubre de 2004 a septiembre de 2005. Se utilizaron para ello
dos tipos de muestreo, uno cualitativo, mediante la anotación del grado de contaminación de
treinta palmeras elegidas al azar de cada uno de los huertos y un segundo muestreo mediante
análisis cuantitativo de la población de cochinilla roja presente en una muestra de hojas de
palmera, distinguiendo tres tramos por hoja (base, media, apical). Se determinó así mismo la
presencia de coccinélidos en las palmeras a lo largo del estudio.
Los |
---|---|
ISSN: | 0213-6910 |