Zur Biologie vonPhyllopertha horticola L.

Tolasch

2004

J Applied Entomology

Field experiments using funnel traps were performed on a golf course to investigate the attractiveness of a floral Japanese beetle lure for adults of the garden chafer, Phyllopertha horticola, a common European turf pest. Traps baited with 10 mg of the floral lure consisting of phenylethyl propionate + eugenol + geraniol (3 : 7 : 3) captured more adult garden chafers of both sexes than non-baited control traps. In contrast, 1,3-dimethyl-2,4-(1H, 3H)-quinazolinedione, the sex pheromone of the closely related pale-brown chafer P. diversa, neither influenced alone nor in combination with the floral lure the behaviour of adult garden chafers. The results suggest that the floral Japanese beetle lure might be used for monitoring or control of P. horticola.

Section: Methodsmentioning

confidence: 99%

Section: 2 Second Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Attraction of garden chafer, Phyllopertha horticola, to floral Japanese beetle lure

Tolasch

2004

J Applied Entomology

“…Both white grubs and adults may cause severe economic losses due to herbivory. The root‐feeding grubs of P. horticola are common turf pests, whereas the adults may damage leaves, flowers, and developing fruits, thereby causing problems, particularly in horticulture and pomiculture (Schultze‐Dewitz, 1958; Edwards & Heath, 1964). Synthetic plant volatiles and/or sex pheromones can be used for the monitoring and control of phytophagous scarab beetles (Ladd et al., 1981; Alm et al., 1994; Leal, 1998).…”

Section: Introductionmentioning

confidence: 99%

Response of garden chafer, Phyllopertha horticola, to plant volatiles: from screening to application

Entomologia Exp Applicata

Mayer

2005

Field tests were performed on a golf course and in an apple orchard to screen synthetic plant volatiles with respect to their attractiveness for the garden chafer, Phyllopertha horticola L. (Coleoptera: Scarabaeidae), and to investigate the possible application of plant volatiles for garden chafer control. The chemicals tested were green leaf volatiles (GLV), terpenoids, and phenylpropanoids. Funnel traps baited with the GLV ( Z )-3-hexen-1-ol, 1-hexanol ( Z )-3-hexenal, and hexanal captured more P. horticola than unbaited controls. Furthermore, traps baited with all tested floral terpenoids (i.e., geraniol, geranyl acetate, citronellol, linalool, and nerol) and phenylpropanoids (i.e., eugenol, anethol, isoeugenol, eugenyl acetate, and isoeugenyl acetate) captured more garden chafers than controls. Different dispenser types loaded once with a mixture of ( Z )-3-hexen-1-ol (50%), geraniol (11.5%), eugenol (27%), and 2-phenylethyl propionate (11.5%) attracted P. horticola over a whole flight season. A commercially available membrane dispenser had the best properties, combining the highest number of captured beetles with a low release rate. A simple modification of the trap design, i.e., a reduction of the funnel outlet diameter, significantly reduced the capture of beneficial nontarget insects (Apoidea), without influencing the number of captured garden chafers. A mass trapping experiment in the apple orchard revealed that the use of attractant traps significantly reduced the percentage of apples disfigured by feeding holes of adult garden chafers (control area: 18.9%, test area: 11.6%). The possible application of synthetic plant volatiles in mass trapping and monitoring approaches for garden chafer control is discussed.

Male-biassed response of garden chafer, Phyllopertha horticola L., to leaf alcohol and attraction of both sexes to floral plant volatiles

Evolutionary, Mechanistic and Environmental Approaches to Chemi

2004

Field tests were performed to evaluate the response of the garden chafer, Phyllopertha horticola (Coleoptera: Scarabaeidae) to known scarab attractants and to investigate the influence of trap colour and height on the number of captured beetles. Both sexes were attracted by a lure mixture composed of geraniol, eugenol, and 2-phenylethyl propionate (PEP) (ratio 3:7:3). When testing floral volatiles individually, only geraniol, eugenol and methyl anthranilate but not PEP was attractive. Response of garden chafer to (Z)-3-hexen-1-ol was strongly male-biassed. Both the response to floral volatiles and (Z)-3-hexen-1-ol was increased by using funnel traps with yellow instead of grey vanes. Traps positioned at 50 and 125 cm above ground captured significantly more garden chafers than those at 200 cm. The strongly male-biassed response to (Z)-3-hexen-1-ol suggests that in P. horticola (subfamily Rutelinae) orientation towards plant volatiles emitted upon mechanical damage of plants is part of the male mate finding strategy as recently demonstrated for cockchafers of the genus Melolontha (subfamily Melolonthinae). Possible application of plant volatiles for control of P. horticola is discussed.