Beauveria brongniartii Sacc. (Petch) against Melolontha spp. white grubs in forest nurseries with different soil pH

Sierpinska, A.; Nowak, Elżbieta; Bednarek, A.

doi:10.1515/ffp-2015-0021

Cited by 3 publications

(2 citation statements)

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“…Because of the ability of B. brongniartii to specifically infect and kill insects, several strains have been tested and used commercially as BCAs against cockchafer grubs in various European countries (Enkerli et al 2001(Enkerli et al , 2004Keller et al 1997;Mayerhofer et al 2015;Sierpińska 2008;Strasser and Enkerli 2001;Strasser et al 2000). These BCAs have been tested in agricultural and forest environments, but in the latter no satisfactory results have been achieved (Sierpińska et al 2015). The identification of edaphic factors in natural forest habitats (soil types, pH ranges, etc.)…”

Section: Introductionmentioning

confidence: 99%

Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland

et al. 2019

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We investigated the occurrence and pathogenicity of Beauveria spp. (Hypocreales: Cordycipitaceae) in forest soils in Poland, in outbreak areas of cockchafers (Coleoptera: Scarabaeidae): Melolontha melolontha L. and M. hippocastani F. We also examined the occurrence of Beauveria in relation to soil pH. Beauveria spp. isolates were characterised at species and genotype levels using ITS and microsatellite markers. Beauveria spp., which were detected at over 80% of sites, were sensitive to pH, preferring neutral or alkaline soils. This suggests that the acidity of forest soils in Poland can affect their efficacy as biological control agents (BCAs). B. brongniartii (Sacc.) Petch as a pathogen of cockchafers occurred at 41% of sites, but often at densities below the threshold values for infection, and it infected only 1.3% of cockchafer grubs. Our results suggest that B. brongniartii genotype isolated from cockchafers in forest soils can potentially expand the pool of BCAs in this environment.

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Section: Introductionmentioning

confidence: 99%

Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland

et al. 2019

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“…This forces the practitioners to look for alternative solutions; hence, they attempt to use jute sacks so as to protect seedling roots, as well as various types of barriers buried along nursery edges to hamper grub migration from adjacent tree stands (Woreta 2015). Studies undertaken presently focus on the use of grub natural enemies, including fungus Beauveria brongniartii and insecticidal nematodes (Kreft et al 2012;Sierpińska et al 2015). Nonetheless, the results obtained so far indicate weak effects of natural enemies on grub population numbers.…”

Section: Other Issuesmentioning

confidence: 99%

Current Problems and Tasks of Forest Protection in Poland

Skrzecz

Perlińska

2018

Folia Forestalia Polonica

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Current problems of forest protection concern the declining health of forest stands due to climate change and the resulting extreme weather events such as heat waves, droughts, hurricane winds, heavy rainfalls and floods. Repeated impacts of these factors increase susceptibility of forest stands to pest insects and fungal pathogens. Norway spruce (Picea abies [L.] H. Karst) is sensitive to high air temperatures and water shortage. Long lasting droughts during the last two decades, have been one of the reasons behind Norway spruce dieback due to severe outbreak of European spruce bark beetle Ips typographus (L.) in the mountainous regions of southern Poland. In the Scots pine (Pinus sylvestris L.) stands, water balance disorders have enhanced the colonization of weekend trees by steelblue jewel beetle Phaenops cyanea (F.) and engraver beetle Ips acuminatus (Gyll.), as well as contributed to the spread of fungal diseases caused by Gremmeniella abietina (Lagerb.) Cenangium ferruginosum Fr. and Sphaeropsis sapinea Fr. fungi. Water related stress leads to weakening of oak stands, which are attacked by Agrilus spp. beetles and pathogens from the genus Phytophthora. It is possible that long lasting droughts initiated the spread of infectious ash disease caused by Hymenoscyphus fraxineus (= Chalara fraxinea), which resulted in the epidemic of ash dieback throughout Europe. Until recently, the use of plant protection products was the most common method of forest protection against pest insects and pathogens. Poland’s accession to the European Union has affected the marketing and use of plant protection products in the country. The implementation of the EU legislation (Directive 91/414/EEC, Directive 2009/128/ EC and Regulation No 1107/2009) has resulted in decreased assortment of pesticides registered for the protection of forests. High costs and long registration process considerably limited the interest of producers in placing the plant protection products on the market. Systematic decrease in the number of plant protection products possible to register for use in forestry, as well as the principles of integrated plant protection established in the EU in 2014 call for seeking plant protection methods based on the natural enemies of pests, such as pathogenic microorganisms, parasites and predators. Therefore, contemporary forest protection requires the advancement of integrated methods for pest insect and disease control through developing methods of forecasting forest dangers, the use of natural enemies and agro-technical methods for regulation of pests, as well as the development of decision support systems as a tool facilitating introduction of integrated forest protection principles. Such support systems help to establish optimal terms for the implementation of protection measures, so as to increase their efficiency while limiting the use of chemical pesticides to an absolute minimum.

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Scarab beetles (Coleoptera: Scarabaeidae) as economically important pests and the possibility of using entomopathogenic fungi for their control

Praprotnik

Razinger

Trdan

2022

AAS

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Scarab beetles (Coleoptera: Scarabaeidae) are a cosmopolitan group of beetles found on all continents except Antarctica. Because of their size, vibrant colors, and above all their role in the ecosystem, they are one of the most recognizable and studied taxons of beetles. Most larvae and adult beetles of species belonging to subfamilies Melolonthinae, Rutelinae, Dynastinae and Cetoniinae feed on plant organs such as roots, leaves, flowers and young fruits and are thus considered to be species of economic importance. In this article we describe some of the most economically important species of scarabs, including their most common host plants. Because the use of chemical insecticides to control scarabs is often limited, the implementation of entomopathogenic fungi as biological control agents is an appropriate alternative based on the rational use of microorganisms to maintain an environmentally balanced level of the pest population. Representatives of the genera Beauveria and Metarhizium are the most commonly used entomopathogenic fungi to control larvae (white grubs) of scarab beetles. Biological control by entomopathogenic fungi has shown to be effective in some cases, however host range is often species-specific. Therefore, in order to effectively use the entomopathogens against scarab beetles, one needs to identify target species in grub-infested area and consequently select strains that are capable of overcoming the host’s defences.

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Beauveria brongniartii Sacc. (Petch) against Melolontha spp. white grubs in forest nurseries with different soil pH

Cited by 3 publications

References 4 publications

Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland

Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland

Current Problems and Tasks of Forest Protection in Poland

Scarab beetles (Coleoptera: Scarabaeidae) as economically important pests and the possibility of using entomopathogenic fungi for their control

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