Repositorio
Institucional

Quiroz, Andres

Parra, Leonardo

Mutis, Ana

Ortega, Fernando

Field response of Hylastinus obscurus Marsham (Coleoptera: Curculionidae) to E-2-hexenal and limonene, two host-derived semiochemicals

PONTIFICIA UNIV CATOLICA CHILE, FAC AGRONOMIA INGENIERIA FORESTAL

CIENCIA E INVESTIGACION AGRARIA

en

Red clover (Trifolium pratense L.), a valuable legume in Chile, is important mainly for seed production and as forage for animal production. Although it is considered a perennial, the productivity of this legume declines during the second year of growth primarily because of infestation by the red clover root borer, Hylastinus obscurus (Coleoptera: Curculionidae). Currently, there is no efficient method for controlling this insect, although the use of semiochemicals may provide a new alternative to reduce the damage caused by this curculionid. In this context, E-2-hexenal and limonene, which were previously determined to be an attractant and a repellent, respectively, for H. obscurus, were released from dispensers established in two cultivars (Quinequeli INIA and Superqueli INIA) and one experimental line (Syn II Pre III) of red clover at the Centro Regional de Investigacion Carillanca (INIA-Carillanca) (Vilcun, Chile). H. obscurus was found in significantly higher numbers on plants from areas treated with E-2-hexenal than from areas treated with limonene or in areas that were left untreated as control areas. However, this attractiveness was influenced by the red clover source such that the effect of E-2-hexenal was observed in Superqueli INIA and Syn II Pre III but not in Quinequeli INIA. Unlike previous studies, limonene had no effect on H. obscurus. Our results provide the first evidence under field conditions for the potential use of E-2-hexenal as an attractant for the red clover root borer H. obscurus.

Artículo original

Andres Quiroz thanks the Projects FONDECYT 1100812 and 11130715 for the funding that made this research possible.

Andrés Quiroz agradece a los Proyectos FONDECYT 1100812 y 11130715 la financiación que hizo posible esta investigación.

10.4067/S0718-16202013000300016

pdf

E-2-hexenal

Hylastinus obscurus

limonene

semiochemicals

Trifolium pratense

TRIFOLIUM-PRATENSE L.

RED-CLOVER

ROOT EXTRACTS

VOLATILES

SCOLYTIDAE

IDENTIFICATION

TREE

E-2-hexenal

Hylastinus oscuro

limoneno

semioquímicos

Trifolium pratense

TRIFOLIUM-PRATENSE L.

TRÉBOL ROJO

EXTRACTOS DE RAÍZ

VOLÁTILES

SCOLYTIDAE

IDENTIFICACIÓN

ÁRBOL

E-2-hexenal

Hylastinus obscurus

limonene

semiochemicals

Trifolium pratense

TRIFOLIUM-PRATENSE L.

RED-CLOVER

ROOT EXTRACTS

VOLATILES

SCOLYTIDAE

IDENTIFICATION

TREE

E-2-hexenal

Hylastinus oscuro

limoneno

semioquímicos

Trifolium pratense

TRIFOLIUM-PRATENSE L.

TRÉBOL ROJO

EXTRACTOS DE RAÍZ

VOLÁTILES

SCOLYTIDAE

IDENTIFICACIÓN

ÁRBOL

Fitomejoramiento y protección vegetal

Agronomía

Field response of Hylastinus obscurus Marsham (Coleoptera: Curculionidae) to E-2-hexenal and limonene, two host-derived semiochemicals

CIENCIA E INVESTIGACION AGRARIA

diamante

verde

acceso abierto

acceso abierto

CC BY NC 4.0

en

Artículo original

versión publicada

ANID CONICYT FONDECYT 1100812#ANID CONICYT FONDECYT 11130715

ANID CONICYT FONDECYT 1100812

ANID CONICYT FONDECYT 11130715

PONTIFICIA UNIV CATOLICA CHILE, FAC AGRONOMIA INGENIERIA FORESTAL

0718-1620

637

642

Agricultura, Multidisciplinaria

Agriculture, Multidisciplinary

pdf

WOS:000330160500016