In a young mixed pine plantation (Pinus nigra and P. pinea) in central Italy, the influence of the pine needle monoterpenes (R)-(+)-limonene, (S)-(-)-limonene and (1S)-(-)--pinene on the oviposition activity of the pine processionary moth, Thaumetopoea pityocampa (Denis et Schifferm¨uller), was assessed. Two application methods were compared: spraying the trees with the substances emulsified with water, and setting up polyethylene dispensers from which the monoterpenes evaporated. During the moth’s flight period weekly treatments (at 500 mg of monoterpene / l water) were carried out and the evaporation from the polyethylene dispensers (each with 5 g of a single monoterpene) was checked on each occasion by weighing the dispensers. The GLM analysis did not uncover any difference between the methods of application or between the pine species. T. pityocampa laid a significantly (P=0.01) lower number of egg masses on the trees treated with (1S)-(-)--pinene than on those treated with the other substances and on the control trees. A 45% reduction in egg mass number was obtained on the pines treated with (1S)-(-)--pinene, independent of the level of infestation, method of application or pine species. (R)-(+)-limonene and (S)-(-)- limonene were not effective
Further studies on the role of monoterpenes in pine host selection and oviposition of Thaumetopoea pityocampa / A.Niccoli; T.Panzavolta; L.Marziali; G.Sabbatini Peverieri; G.Tellini Florenzano; R.Tiberi. - In: PHYTOPARASITICA. - ISSN 0334-2123. - STAMPA. - 36:(2008), pp. 313-321. [10.1007/BF02980810]
Further studies on the role of monoterpenes in pine host selection and oviposition of Thaumetopoea pityocampa.
PANZAVOLTA, TIZIANA;TIBERI, RIZIERO
2008
Abstract
In a young mixed pine plantation (Pinus nigra and P. pinea) in central Italy, the influence of the pine needle monoterpenes (R)-(+)-limonene, (S)-(-)-limonene and (1S)-(-)--pinene on the oviposition activity of the pine processionary moth, Thaumetopoea pityocampa (Denis et Schifferm¨uller), was assessed. Two application methods were compared: spraying the trees with the substances emulsified with water, and setting up polyethylene dispensers from which the monoterpenes evaporated. During the moth’s flight period weekly treatments (at 500 mg of monoterpene / l water) were carried out and the evaporation from the polyethylene dispensers (each with 5 g of a single monoterpene) was checked on each occasion by weighing the dispensers. The GLM analysis did not uncover any difference between the methods of application or between the pine species. T. pityocampa laid a significantly (P=0.01) lower number of egg masses on the trees treated with (1S)-(-)--pinene than on those treated with the other substances and on the control trees. A 45% reduction in egg mass number was obtained on the pines treated with (1S)-(-)--pinene, independent of the level of infestation, method of application or pine species. (R)-(+)-limonene and (S)-(-)- limonene were not effectiveFile | Dimensione | Formato | |
---|---|---|---|
NICCOLI.pdf
Accesso chiuso
Tipologia:
Versione finale referata (Postprint, Accepted manuscript)
Licenza:
Tutti i diritti riservati
Dimensione
450.73 kB
Formato
Adobe PDF
|
450.73 kB | Adobe PDF | Richiedi una copia |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.