Vegetation management in organic cabbages and pitfall catches of carabid beetles

Armstrong, G.; McKinlay, R. G.

doi:10.1016/s0167-8809(97)00024-8

Cited by 26 publications

(13 citation statements)

References 19 publications

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“…Harpalus rufipes were most abundant in flower strips, whereas B. quadrimaculatum seemed to profit from companion plants. Armstrong and McKinlay (1997) observed that cabbage cultures with natural weed cover had more ground beetles than dense cabbage cultures with dense white clover undergrowth. In contrast, Purvis and Curry (1984) observed no correlation between partial weed cover and trap contents.…”

Section: Discussionmentioning

confidence: 95%

“…predatory insects, parasitoids), but little is known about the effects of compensation measures in vegetable crops. To enhance beneficial insects in cabbage cultures, intercropping with clover (e.g., Armstrong and McKinlay 1997;Finch and Kienegger 1997;Schellhorn and Sork 1997) or grass strips has been applied (e.g., Ryan et al 1980). Weedy cabbage fields were shown to contain less insect pests than weedfree cultures (Schellhorn and Sork 1997).…”

Section: Introductionmentioning

confidence: 99%

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Effects of experimentally planting non-crop flowers into cabbage fields on the abundance and diversity of predators

et al. 2013

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Flowery field margins and intersowing of crops with flowers are used as management practices to promote arthropod biodiversity as well as biocontrol agents. Positive effects of enhancement (in abundance and species richness) of hymenopteran parasitoids on control of Lepidoptera pests have previously been demonstrated. However, effects on predatory arthropods, which may also serve as pest control agents, remain unclear. In an experimental study in cabbage fields we tested how sown flower strips on field margins and intersowing with cornflower affected the species richness, abundance and community composition of ground beetles and spiders. Furthermore, we investigated whether effects of flower margins are dependent on the distance from the field margins. We found that field margins generally harboured higher species richness, whereas effects on abundance were weaker. Intersown cornflower had positive effects on spider and ground beetle abundance, but affected species richness only weakly. Our results do not provide evidence for effects of distance from the flowery field margins on predator richness or Electronic supplementary material The online version of this article (

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Effects of experimentally planting non-crop flowers into cabbage fields on the abundance and diversity of predators

et al. 2013

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“…There may also be greater food resources from weed seeds and prey availability from invertebrates associated with organic manures (Purvis & Curry, 1984; Hokkanen & Holopainen, 1986; Basedow, 1994). Pterostichus melanarius is considered to be a hygrophilic species, and is generally more abundant where plant cover provides damp, shady conditions (Thiele, 1977; Armstrong & McKinlay, 1997). Additionally, the distribution and abundance of carabids in different habitat patches of a restored meadow in Ohio, USA, were thought to be a reflection of preferences by carabid species to the thermal environment (Crist & Ahern, 1999).…”

Section: Discussionmentioning

confidence: 99%

Diversity and abundance of the coleopteran fauna from organic and conventional management systems in southern England

Shah

Brooks

Ashby

et al. 2003

Agri and Forest Entomology

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1 Studies of the epigeal coleopteran fauna on five pairs of organic and conventional farms were carried out between May and July 1994 in southern England using pitfall trapping. A total of 27 749 individuals and 140 species were identified. Overall, abundance of Coleoptera was greatest on organically managed farms. 2 Ground beetles (Coleoptera: Carabidae) and staphylinid beetles (Col. Staphylinidae) formed 79.7% and 16.7%, respectively, of the total catch. Pterostichus melanarius was the dominant carabid among the 45 species captured and significantly higher numbers were found in organic farms. Tachinus signatus was the most common of 44 staphylinid species, and was significantly more abundant on conventional farms. 3 For carabids, the log-series a diversity index was higher on conventional farms but was not statistically different from that calculated for organic farms. The a index was identical for staphylinid species from organic and conventional farms. Diversity was significantly higher from conventional farms when data were combined for all of the recorded coleopteran species. 4 From this study, it appears that the main effect of farming practice is to influence the overall abundance and dominance of particular species, and the lower diversity of organic farms is a consequence of the large increase in dominance of a single species, namely P. melanarius.

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“…Carabid bettles considered as bio control agent of different crop pests and polyphagus on wide variety of plants [23], [24], [25]. During our study carabid collected from the agricultural fields have very low weed infestation due to their predation on weed seeds [26] intercropping enhance the beneficial role of carabid bettles. [27] suggested that carabid bettles are evaluated as potential control agent of economically important arthropods in forest and agricultural ecosystems.…”

Section: Descriptionmentioning

confidence: 72%

Systematic and Abundance of Ground Beetles (Carabidae: Coleoptera) From District Poonch Azad Kashmir, Pakistan

Rahim¹

2013

IOSR-JAVS

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Vegetation management in organic cabbages and pitfall catches of carabid beetles

Cited by 26 publications

References 19 publications

Effects of experimentally planting non-crop flowers into cabbage fields on the abundance and diversity of predators

Effects of experimentally planting non-crop flowers into cabbage fields on the abundance and diversity of predators

Diversity and abundance of the coleopteran fauna from organic and conventional management systems in southern England

Systematic and Abundance of Ground Beetles (Carabidae: Coleoptera) From District Poonch Azad Kashmir, Pakistan

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