Field trap test for bioassay of synthetic (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol as an aggregation pheromone of Platypus quercivorus (Coleoptera: Platipodidae)

Kamata, Naoto; Esaki, Kojiro; Mori, Kenji; Takemoto, Hiroyuki; Mitsunaga, Tohru; Honda, Hiroshi

doi:10.1007/s10310-007-0053-5

Cited by 11 publications

(9 citation statements)

References 9 publications

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“…A field study conducted in a forest showed that aggregation pheromone alone is not sufficient to attract P. quercivorus (Kamata et al, 2008), suggesting that other information on trees is necessary for beetles to locate their host. Results of this study showed that male beetles increased their sensitivity to leaf volatiles after longer duration flights (Figure 5a), suggesting that leaf vola- The results of the present study revealed that the volatiles emitted from fresh leaves of Q. crispula play significant roles in the host-seeking behaviour of P. quercivorus.…”

Section: Days After Cutting Leavesmentioning

confidence: 99%

Effects of leaf conditions and flight activity on the behaviour of Platypus quercivorus (Murayama) (Coleoptera: Platypodidae)

Pham

Ito²,

Okada

et al. 2019

J Applied Entomology

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The important role of semiochemicals in the interactions between plants and insects has been extensively investigated. The volatiles produced by oak trees are thought to attract the ambrosia beetle Platypus quercivorus (Murayama), which causes wilt disease in Quercus trees, resulting in widespread damage. In the present study, we hypothesized that (a) P. quercivorus is attracted to the leaf volatiles emitted by host trees and (b) the response of P. quercivorus to leaf volatiles is affected by flight. An experiment was performed to survey the preferences of both sexes of P. quercivorus for the leaf volatiles of Quercus crispula Blume at various stages of leaf deterioration, represented by different number of days after cutting. Additionally, the effect of flight on both sexes was evaluated by testing the beetle flight on a flight mill. The results showed that P. quercivorus was attracted to the volatiles emitted from fresh leaves and was not attracted to those emitted from dry leaves. This suggests that leaf volatiles from healthy hosts are primary attractants for P. quercivorus. Further, males exhibited increased olfactory responses to leaf volatiles as their flight duration increased, whereas the opposite pattern was observed in females. These results suggest that the different ecological roles of the sexes contribute to differences in olfactory responses. K E Y W O R D S flight mill, host selection, olfactory response, Quercus crispula, volatile, Y-tube olfactometer

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Section: Days After Cutting Leavesmentioning

confidence: 99%

Effects of leaf conditions and flight activity on the behaviour of Platypus quercivorus (Murayama) (Coleoptera: Platypodidae)

Pham

Ito²,

Okada

et al. 2019

J Applied Entomology

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“…However, the beetle's aggregation pheromone has been identified (Kashiwagi et al 2006). Unfortunately, a synthetic pheromone failed to capture the beetle effectively (Kamata et al 2008). Determining differences in beetle activity among tree species will help to clarify ecological relationships, a necessary first step in establishing an effective trapping method for wild beetles.…”

Section: Introductionmentioning

confidence: 99%

Discrimination among host tree species by the ambrosia beetlePlatypus quercivorus

Yamasaki

Futai

2012

Journal of Forest Research

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The ambrosia beetle Platypus quercivorus is a vector for the fungus that causes Japanese oak wilt, and susceptibility to infestation by P. quercivorus varies by tree species. We postulated that P. quercivorus discriminates among host tree species differing in susceptibility to attack. To test this postulate, we counted the number of flying male beetles (NFM), the number of holes bored by male beetles (NH), and the number of flying female beetles (NFF) per unit area of bark surface in three fagaceous tree species: Quercus crispula (with high susceptibility to infestation) and Q. serrata and Castanea crenata (both with low susceptibility). NFM and NH were used to calculate the proportion of male beetles that bored holes out of those that flew to the tree (PBM). We used generalized additive models to predict NFM, NFF, and PBM. The locations of trees, expressed as x and y coordinates, numbers of weeks after the first male beetle's flying (WEEK), diameters of trees 130 cm above ground (DBH), and tree species (SP) were incorporated into the models as candidate explanatory variables. The best-fit models for NFM and NFF included WEEK and DBH and the effect of location; SP was not included in the models. For PBM, the best-fit model included WEEK, DBH, and SP. The results indicate that male P. quercivorus prefer Q. crispula to Q. serrata and C. crenata and that selection is made before boring holes on trees, but that P. quercivorus do not discriminate among host species when they fly to trees.

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“…2007), and a synthetic pheromone was used to attract P . quercivorus (Kamata et al. 2008), the method failed to capture the beetle effectively.…”

Section: Introductionmentioning

confidence: 99%

“…They attack healthy trees en masse (Ueda and Kobayashi 2001) using an aggregation pheromone. Although the chemical structure of the pheromone has been determined (Kashiwagi et al 2006;Tokoro et al 2007), and a synthetic pheromone was used to attract P. quercivorus (Kamata et al 2008), the method failed to capture the beetle effectively.…”

Section: Introductionmentioning

confidence: 99%

Predicting oak tree mortality caused by the ambrosia beetle Platypus quercivorus in a cool‐temperate forest

Yamasaki

Sakimoto

2009

J Applied Entomology

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Mass mortality of fagaceous trees due to wilt disease, which has been spreading throughout Japan since the 1980s, is caused by the ambrosia beetle Platypus quercivorus. Quercus crispula is one of the species most susceptible to the disease. Previous studies have examined this disease in secondary forests, where fagaceous trees are dominant and are considered to be distributed uniformly. We examined whether the uneven distribution of Q. crispula in a natural forest affects the spread of this disease. We determined its distribution using Morisita’s index of dispersion (Iδ), and then predicted the probability of mortality using a generalized linear model with topographic variables (altitude and index of convexity), tree size (diameter at breast height, DBH), and basal areas of Q. crispula and Cryptomeria japonica (the dominant species at the study site) per 0.01, 0.09, and 0.25 ha as explanatory variables. The site included 310 Q. crispula within a 14 ha plot in a cool‐temperate forest of Japan with no signs of beetle infestation in 2003. The calculated index of dispersion showed a clumped distribution of Q. crispula with an estimated clump size of 0.08 ha. At the end of 2007, 36 Q. crispula in the study site were dead, and DBH and basal area of Q. crispula per 0.09 ha had significant positive effects on the probability of mortality. The basal area of C. japonica, a non‐host conifer species for P. quercivorus, per 0.09 ha also had a positive effect on the probability of mortality. These results suggest that P. quercivorus first flew to a cluster of Q. crispula aggregated in about a 0.1 ha area where the density of C. japonica is high, and then DBH played a role in determining the target trees.

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Field trap test for bioassay of synthetic (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol as an aggregation pheromone of Platypus quercivorus (Coleoptera: Platipodidae)

Cited by 11 publications

References 9 publications

Effects of leaf conditions and flight activity on the behaviour of Platypus quercivorus (Murayama) (Coleoptera: Platypodidae)

Effects of leaf conditions and flight activity on the behaviour of Platypus quercivorus (Murayama) (Coleoptera: Platypodidae)

Discrimination among host tree species by the ambrosia beetlePlatypus quercivorus

Predicting oak tree mortality caused by the ambrosia beetle Platypus quercivorus in a cool‐temperate forest

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