DISTRIBUTION AND DYNAMICS OF THE GROUND BEETLE (COLEOPTERA, CARABIDAE) AND THE CLICK BEETLE (COLEOPTERA, ELATERIDAE) SPECIES ABUNDANCE IN ORGANIC AND INTENSIVELY CULTIVATED CEREAL CROPS

2015 ◽  
Author(s):  
Sonata KAZLAUSKAITĖ ◽  
Povilas MULERČIKAS ◽  
Vytautas TAMUTIS ◽  
Audronė ŽEBRAUSKIENĖ ◽  
Elena SURVILIENĖ
Keyword(s):  
Ground Beetle ◽  
Species Abundance ◽  
Beetle Species ◽  
Poecilus Cupreus ◽  
Organic Farm ◽  
Agriotes Obscurus ◽  
Large Numbers ◽  
Click Beetle ◽  
In The Beginning ◽  
Agriotes Lineatus

The research has been carried out in 2013–2014 in an organic farm located in Medsėdžiai village, Klaipėda district, and intensive farm located in Laiviai village, Kretinga district. Four agrocenoses have been investigated: wheat, triticale, oat, and multiannual grassland. Five pitfall traps were set out in each of agrocenosis and the traps were active from the last decade of April until the last decade of August. Ground beetle adults that were detected during the study belonged to 27 species and 15 genera. The most abundant ground beetle species were Poecilus cupreus L., Pterostichus melаnаrius Ill, Аmаrа аeneа Deg, Cаrаbus cаncellаtus Ill., Hаrpаlus rufipes Deg., Аnchomenus dorsаlis Pontop. and Bembidion properаns Steph., representatives of which were detected in large numbers in all without an exception investigated agrocenoses and in both types of farming. Two seasonal activity peaks of P. cupreus L. abundance were distinguished in the organic farm: first in the beginning of June and the second in the mid-July. Meanwhile, in the intensive farm it was observed in late May. Click beetle adults, identified in the study, were prescribed to 6 species and 4 genera. The most abundant click beetle species were Agriotes obscurus L., Agriotes lineatus L. and Agriotes sputator L. which occurred without an exception in all the agrocenoses and both types of farms. It was determined that the highest click beetle adults’ activity in the intensive farm was observed in the end of July while the maximum of click beetle adults’ activity in the organic farm was defined in June.

scholarly journals The Effect of Simulated Seasonal Temperatures On Metarhizium Brunneum-Associated Mortality In Two Click Beetle Species, And A Degree-Day Infection Model

2021 ◽  
Author(s):  
Todd Kabaluk ◽  
Sophie Ruau ◽  
Anita Poon
Keyword(s):  
Infection Model ◽  
Beetle Species ◽  
Agricultural Pests ◽  
Degree Days ◽  
Click Beetles ◽  
Agriotes Obscurus ◽  
Metarhizium Brunneum ◽  
Temperature Oscillations ◽  
Click Beetle ◽  
Gradient Plate

Abstract Wireworms (Coleoptera: Elateridae), the larvae of adult click beetles are subterranean and generalist crop pests that can be difficult to target. Targeting adult beetles, however, may be an effective method to lower wireworm populations. Metarhizium brunneum (Petch) kills click beetles but the mortality rate was expected to vary according to temperature. Using a thermal gradient plate to simulate daily oscillating temperatures for April, May, and June, the effectiveness of M. brunneum strains LRC112 and F52 in causing mortality to Agriotes obscurus (L.) and A. lineatus (L.) beetles was studied. Mortality was fastest in beetles exposed to June temperatures and slowest in those exposed to April temperatures, with differences among beetle species x M. brunneum strain combinations. Warmer temperatures resulted in more rapid mycelial outgrowth and conidiation in beetle cadavers, with only A. obscurus infected with M. brunneum LRC112 attaining near 100% conidiation. The number of degree days required to kill 50% of the beetles (LDD50) was least for A. obscurus infected with M. brunneum LRC112 (176) followed by A. obscurus x M. brunneum F52 (212), A. lineatus x M. brunneum LRC112 (215), and A. lineatus x M. brunneum F52 (292). Hypothetical calculations showed that M. brunneum exposure earlier in the season resulted in a longer LT50 but the earliest LT50 calendar date. Later M. brunneum exposure dates resulted in lower LT50’s, but later LT50 dates. This conceptual work demonstrates the importance of considering daily temperature oscillations, seasonality, and degree days in predicting the efficacy of entomopathogens to manage agricultural pests.

Local Depletion of Click Beetle Populations by Pheromone Traps Is Weather and Species Dependent

2020 ◽  
Vol 49 (2) ◽  
pp. 449-460
Author(s):  
Willem G van Herk ◽  
Robert S Vernon
Keyword(s):  
Control Strategies ◽  
Cold Weather ◽  
Pitfall Traps ◽  
Emergence Period ◽  
Agriotes Obscurus ◽  
Field Crops ◽  
Time Control ◽  
Click Beetle ◽  
Baited Traps ◽  
Agriotes Lineatus

Abstract Several Agriotes click beetle species are important pests of vegetables and field crops. Monitoring for beetles is generally done with pheromone-baited traps maintained in permanent locations. Since dispersal is mostly by walking, such traps may deplete populations around them, leading to underestimations of populations relative to nontrapped areas, and of concomitant risk of wireworm damage to nearby crops. We placed sets of five pitfall traps in field headland areas in 2015–2017, of which two were baited with Agriotes obscurus (L) or Agriotes lineatus (L) (Coleoptera: Elateridae) pheromone. Of these, one was maintained in a permanent location, while the other moved among the remaining positions. Traps were checked weekly over the emergence period. For A. obscurus, fixed and moving traps initially collected similar numbers, but the latter collected significantly more later in the season, indicating depletion around fixed traps. Depletion was most pronounced after a period of cold weather, and around the peak swarming period. Depletion observed for A. lineatus was not statistically significant. This indicates pheromone-baited traps used for walking insects can underestimate populations, but depletion rates vary with species and temperature and should be accounted for when traps are used to develop action thresholds or time control strategies.

A distribution atlas of legally protected ground beetle species (Coleoptera: Carabidae) occurring in the Łódź Province, central Poland

2013 ◽  
Vol 56 (2) ◽  
pp. 89-112
Author(s):  
Radomir Jaskuła ◽  
Anna Stępień ◽  
Przemysław Włodarczyk ◽  
Iwona Słowińska-Krysiak
Keyword(s):  
Ground Beetle ◽  
Beetle Species ◽  
Central Poland ◽  
Distribution Atlas

scholarly journals Ground beetles (Carabidae) of field margin habitats

Biologia ◽  
2020 ◽  
Vol 75 (10) ◽  
pp. 1631-1641
Author(s):  
Janina Bennewicz ◽  
Tadeusz Barczak
Keyword(s):  
Conservation Status ◽  
Ground Beetle ◽  
Abundant Species ◽  
Ground Beetles ◽  
Field Margin ◽  
Poecilus Cupreus ◽  
The Status ◽  
Beetle Assemblages ◽  
Anchomenus Dorsalis ◽  
Pterostichus Melanarius

Abstract The aim of this study was to identify the role of field margin habitats in preserving the diversity and abundance of ground beetle assemblages, including potentially entomophagous species and those with conservation status in Poland. Research material was collected in 2006–2007 in four types of margin habitats – a forest, bushes, ditches and in two arable fields. Insects were captured into pitfalls, without preservation liquid or bait added to the traps. Traps were inspected twice a week, between May and August, and one sample was a weekly capture. In field margin habitats the most abundant species were Limodromus assimilis, Anchomenus dorsalis, Pterostichus melanarius and Carabus auratus. A lower abundance of species was noted on fields, with dominant Poecilus cupreus and P. melanarius. The group of zoophagous carabids found in our study includes 30 species from field margin habitats, i.e. 37.5% of all captured Carabidae taxa and 58.3% of all specimens. The share of aphidophagous species was 84.9% among bushes, 86.7% near ditches, and 88.0% in the forest habitat. Several species captured during the study are under protection in Poland. These include the partly protected Carabus convexus, which also has the status of near threatened species, the partly protected Calosoma auropunctatum, and Broscus cephalotes. Considering all the investigated field margin habitats, ground beetles were most numerous in the oak-hornbeam habitat, defined as bushes, formed predominantly by Prunus spinosa, Crataegus leavigata, Sambucus nigra and Rosa canina. Thus, this habitat was the most important reservoir/refugium for the ground beetles.

scholarly journals The Adequacy of Some Collecting Techniques for Obtaining Representative Arthropod Sample in Dry Grasslands

2014 ◽  
Vol 62 (1) ◽  
pp. 167-174 ◽  
Author(s):  
Jana Niedobová ◽  
Zdeněk Faltýnek Fric
Keyword(s):  
Ground Beetle ◽  
Landscape Management ◽  
Pitfall Traps ◽  
Beetle Species ◽  
Relict Species ◽  
Important Indicator ◽  
Leaf Beetles ◽  
Rove Beetles ◽  
Dry Grasslands ◽  
Ecological Requirements

The number of remarkable species on a locality is an important indicator of locality value. The ecological requirements of the rare species may help to target correct landscape management activities. Our objective was to find out if standardly used capture methods for different group of invertebrate are able to detect really representative composition of species including rare taxa. Our experiment was carried out at the Moravský kras Protected Landscape Area (Macošská and Vilémovická stráň slope) where secondary dry grasslands are typical for each investigated locality. We used five groups of invertebrates (spiders, ground beetles, rove beetles, leaf beetles and weevils) and three capture methods (pitfall traps, sweeping on vegetation and yellow Möricke traps). Arthropods were determined and classified according to their rarity. Using the three capture methods, we obtained in total 127 spider species (Areneae), 31 ground beetle species (Carabidae), 29 rove beetle species (Staphylinide), 52 leaf beetle species (Chrysomelidae) and 55 weevil species (Curculionidae).Results showed that the different capture methods significantly influenced number of detected remarkable species. It was statistically proved for spiders (P = 0.025), weevils (P = 0.038) and marginally also for rove beetles (P = 0.051). Spiders of climax (C species) and semi-natural (SN species) habitats were rather detected by pitfall traps, whereas spiders of disturbed habitats were collected by sweeping on vegetation and Möricke yellow pans eventually. Relict species of weevils (R species) were detected by pitfall traps, typical species (T species) were collected by Möricke yellow pans and expansive species (E species) were found by sweeping on vegetation.

scholarly journals Note: Recording of Some Beetles in Honey Bee Colonies

2018 ◽  
Vol 51 (2) ◽  
pp. 85-90 ◽  
Author(s):  
H.F. Abou-Shaara ◽  
M.E. Ahmad ◽  
J. Háva
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
The Other ◽  
Beetle Species ◽  
Large Numbers ◽  
The World ◽  
Bee Bread ◽  
Small Hive Beetles ◽  
Bee Colonies ◽  
Different Parts

Abstract Honey bees are very valuable to human. These social insects contribute in the pollination of many crops. Also, the products from honey bee colonies have many nutritional and medicinal benefits. Thus, keeping honey bees are very valuable and can be considered as source of income to many families. There are many diseases and pests that attack honey bee colonies. The pests attack bee colonies include: hornets, wax moths, bee-eater birds, and beetles. Such challenges can impact the survival and productivity of honey bee colonies. In this study, some beetle species belong to Fam. Nitidulidae, Dermestidae and Mycetophagidae were detected in honey bee colonies in Egypt, during spring. Despite the presence of many beetle species in the agricultural environment, only few species preferred the invasion of the colonies for feeding. These beetles do not attack stages of honey bees. They only feed on stored pollen or bee bread, especially those fallen on the bottom of the beehives. This is an alarm to follow the feeding behavior and distribution of these beetles. These beetles’ species can be considered as potential pests to weak honey bee colonies, housed in old or damaged beehives. The presence of large numbers of these beetles in weak colonies may disturb the activities of the bees and may passively impact the survival of the colonies. Listing these beetles is very important to better understanding the interaction between honey bees and beetles. On the other side, small hive beetles were not detected in the colonies. These beetles are currently one of the major problems facing honey bees in different parts of the world. This study confirms the absence of small hive beetles from Egypt.

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