Spring phenology of cockchafers, Melolontha spp. (Coleoptera: Scarabaeidae), in forests of south-western Germany: results of a 3-year survey on adult emergence, swarming flights, and oogenesis from 2009 to 2011

Wagenhoff, Eiko; Blum, Rainer; Delb, Horst

doi:10.17221/5/2014-jfs

Cited by 31 publications

(27 citation statements)

References 16 publications

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“…pastures, vegetable crops, orchards, vineyards), M . hippocastani mainly thrives in deciduous forests 5,6 . Currently, these two species occur as pests in Austria, Czech Republic, France, Germany, Italy, Poland and Switzerland, but the available monitoring data is incomplete 2 , and Melolontha spp.…”

Section: Introductionmentioning

confidence: 99%

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Active sound production of scarab beetle larvae opens up new possibilities for species-specific pest monitoring in soils

Görres

Chesmore

2019

Sci Rep

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Root-feeding Scarabaeidae larvae can pose a serious threat to agricultural and forest ecosystems, but many details of larval ecology are still unknown. We developed an acoustic data analysis method based on active sound production by larvae (i.e. stridulations) for gaining new insights into larval ecology. In a laboratory study, third instar larvae of the Common Cockchafer ( Melolontha melolontha) ( n = 38) and the Forest Cockchafer ( M . hippocastani) ( n = 15) kept in soil-filled containers were acoustically monitored for 5 min each, resulting in the first known stridulation recordings for each species. Subsequent continuous monitoring of three M . hippocastani larvae over several hours showed that a single larva could stridulate more than 70 times per hour, and stridulation rates increased drastically with increasing larval abundance. The new fractal dimension-based data analysis method automatically detected audio sections with stridulations and provided a semi-quantitative estimate of stridulation activity. It is the first data analysis method specifically targeting Scarabaeidae larvae stridulations in soils, enabling for the first time non-invasive species-specific pest monitoring.

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Section: Introductionmentioning

confidence: 99%

“…The reasons behind the recovery of Melolontha spp. populations are mainly unknown 7 , but are of serious concern as, for instance, infested forest areas can become more susceptible to droughts and secondary diseases, and forest regeneration can be hindered 5,6,8 .…”

Section: Introductionmentioning

confidence: 99%

Active sound production of scarab beetle larvae opens up new possibilities for species-specific pest monitoring in soils

Görres

Chesmore

2019

Sci Rep

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“…In Poland, the most important species are Melolontha melolontha L. (common or May cockchafer), and M. hippocastani Fabr. (forest cockchafer) [6][7][8]. These species occur at varied frequency throughout the country, but are commonly found in the central and southeastern parts of Poland.…”

Section: Introductionmentioning

confidence: 99%

The Spring Assessing Method of the Threat of Melolontha spp. grubs for Scots Pine Plantations

Szmidla

Małecka

Tkaczyk

et al. 2019

Forests

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Root-feeding Melolonthinae larvae are a forest pest species in Europe that can exert serious damage. In Poland, they are classified as the most dangerous pest on land dedicated to afforestation and the most serious threat to natural regeneration in the stands. This study was performed in three forest districts in east Poland (Lubartów, Marcule, and Wyszków forest districts) in mixed conifer forests, where the presence of Melolontha spp. grubs was evaluated in autumn and spring of 2012 to 2017, respectively. In spring 2012, 2014, and 2016, consecutively ‘small sawdust pits’ in rows between seedlings were prepared, and in adjacent inter-rows similar control pits without sawdust were marked. In spring and autumn of the following year, sawdust and soil from both types of pits were sieved and Melolonthinae larvae were counted and compared. More grubs were found in sawdust pits in spring than in autumn. In Marcule Forest District (FD) (2014), more grubs were found in inter-rows than in rows with seedlings, when compared to grubs detected using the traditional method of “autumn large pits assessment”, recommended by Polish forest rules. The Melolonthinae population size and location of grubs were related to the weather conditions in the evaluated periods, as well. We conclude that to properly assess the cockchafer threat, it is necessary to perform spring assessment and to search in inter-rows. This could be recommended for decisions on control.

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“…Two-(L 2 ) and threeyear-old (L 3 ) grubs feed on tree and shrub roots even more voraciously, making reforestation and afforestation difficult or impossible to implement. Recent mass outbreaks have established cockchafers to be the most harmful root-feeding pests in forestry, affecting nurseries, young plantations, and tree stands (Delb & Mattes 2001, Keller & Zimmermann 2005, vestka 2006, Malinowski 2007, Giannoulis et al 2011, Wagenhoff et al 2014, Niemczyk 2015, Sukovata et al 2015, Niemczyk et al 2017.…”

Section: Introductionmentioning

confidence: 99%

A quick PCR-based method for identification of <i>Melolontha melolontha</i> and <i>Melolontha hippocastani</i> (Coleoptera: Scarabaeidae

Tereba¹,

Niemczyk²

2018

Entomol. Fennica

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The common cockchafer (Melolontha melolontha) and the forest cockchafer (Melolontha hippocastani) are among the most destructive insect pests in many European countries. Larvae feed on the roots of numerous plant species, thus inflicting severe damage and heavy economic losses. The two species are often discussed together because they are difficult to distinguish during the larval stage.However, they differ slightly in ecology and development. The aim of this study was to develop a quick PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) method for easily identifying the two Melolonthaspecies through tissue samples or larvae, when reliable morphological identification is lacking. The strength of the method was tested on 43 M. melolonthaand 37 M. hippocastani individuals. We demonstrate that the technique is rapid and inexpensive, with strong implications for the effective management of these insect pests.

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Spring phenology of cockchafers, Melolontha spp. (Coleoptera: Scarabaeidae), in forests of south-western Germany: results of a 3-year survey on adult emergence, swarming flights, and oogenesis from 2009 to 2011

Cited by 31 publications

References 16 publications

Active sound production of scarab beetle larvae opens up new possibilities for species-specific pest monitoring in soils

Active sound production of scarab beetle larvae opens up new possibilities for species-specific pest monitoring in soils

The Spring Assessing Method of the Threat of Melolontha spp. grubs for Scots Pine Plantations

A quick PCR-based method for identification of <i>Melolontha melolontha</i> and <i>Melolontha hippocastani</i> (Coleoptera: Scarabaeidae

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