EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The effects on beneficial arthropods of the exclusion of herbicides from cereal crop edges


, : The effects on beneficial arthropods of the exclusion of herbicides from cereal crop edges. Journal of Applied Ecology 28(3): 1027-1039

The arthropod faunas of herbicide-treated and untreated headland plots of a spring wheat crop were compared in a replicated within-field experiment in Hampshire, England [UK]. Unsprayed headland plots had more weed species, higher weed densities, greater weed biomass and a higher percentage weed cover. Unsprayed headland plots supported significantly higher densities of non-target arthropods, especially the non-pest species which are important in the diet of insect-eating gamebird chicks. These plots also contained higher densities of predatory arthropod groups, especially the polyphagous species and their alternative prey. Within plywood enclosures placed in treated and untreated headland plots, no significant between-treatment differences were found in the total pitfall trap catch of the two most numerous carabid beetle species, Pterostichus melanarius (Illiger) and Agonum dorsale (Pontoppidan). However, a significantly greater proportion of female A. dorsale were caught in the enclosures in treated plots than in untreated plots. Dissection revealed that significantly more gut sections of gravid and non-gravid female and male P. melanarius and gravid female and male A. dorsale from untreated plots contained solid arthropod food remains. Both carabids had also taken significantly more meals and preyed upon a wider variety of arthropod food in untreated plots. As a consequence fewer cereal aphids were consumed by beetles in unsprayed plots. Higher numbers of eggs per female were found for both species of carabid beetle collected from untreated plots. The consequences of the changes in the pesticide use on the edges of cereal fields to pest-predator relationships are discussed.


Accession: 002249664

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Storck-Weyhermeuller, Sabine, 1991: Regulation of pest insects and beneficial arthropods in winter wheat by herbicide-free crop edges

Storck Weyhermueller S.; Welling M., 1991: Communications from the federal biological institute for agriculture and forestry berlin dahlem no 273 regulation of pest insects and beneficial arthropods in winter wheat by herbicide free crop edges. This monograph presents the results of a study of a government program in Hesse, Germany, which encourages farmers to leave their crop edges untreated with herbicides in order to preserve arable weeds and increase populations of beneficial arthrop...

Sotherton, N., 1986: The effects of applications of pyrazophos on beneficial arthropods in cereal fields. Game Conservancy Annual Review, 71-72 No. 17

Franz, J.M.; Tanke, W., 1979: Side effects of herbicides and their metabolites on beneficial arthropods. Unlike Betanal (phenmedipham) and Semeron 25 (desmetryne), the compounds Lasso (alachlor), Ramrod (propachlor) and Bidisin forte (chlorfenprop-methyl) showed a degree of toxicity to entomophagous insects under laboratory conditions which would be...

Taylor, R.; Maxwell, B.; Boik, R., 2006: Indirect effects of herbicides on bird food resources and beneficial arthropods. This study examined effects of agricultural herbicides on food webs to quantify how herbicide induced changes in the plant community affect arthropod abundance. The study focused on insects eaten by ring-necked pheasant and gray partridge chicks a...

Poehling H.M.; Dehne H.W., 1986: Side effects of cereal aphid control in winter wheat on different species of beneficial arthropods. Biological Institute For Agriculture And Forestry Mitteilungen Aus Der Biologischen Bundesanstalt Fuer Land- Und Forstwirtschaft Berlin-Dahlem, Heft 232 45 Deutsche Pflanzenschutz-Tagung; (Communications From The Federal Biological Institute For Agriculture And Forestry Berlin-Dahlem, No 232 45th German Plant Protection Meeting); Kiel, West Germany, October 6-10, Xxxviii+431p Kommissionsverlag Paul Parey: Berlin, West Germany Illus Paper 293

Den Nijs, L.; Booij, K.; Daamen, R.; Lock, C.; Noorlander, J., 1997: The effects of crop rotation on beneficial arthropods in agroecosystems. Biological Agriculture & Horticulture 15(1-4): 364

Anonymous, 1988: Investigations in hesse west germany on effects and impact of unsprayed crop edges 4 recording of arthropods using a suction trap

Poehling, H.M.; Dehne, H.W.; Picard, K., 1985: Investigations on the use of fenvalerate for the control of cereal aphids in winter wheat, with special reference to side-effects on beneficial arthropods. The effects of fenvalerate on aphids and on some beneficial arthropods (mainly coccinellids, staphylinids, syrphids and parasitic Hymenoptera attacking them) were compared with those of pirimicarb in winter wheat fields in the German Federal Repub...

Anonymous, 1988: Communications from the federal biological institute for agriculture and forestry berlin dahlem vol 247 effects of crop edges symposium on crop edges positive effects for agriculture darmstadt west germany august 31 1988