home    about    browse    search    latest    help 
Login | Create Account

Combining physical, cultural and biological methods: prospects for integrated non-chemical weed management strategies

Hatcher, Lecturer Paul and Melander, Senior scientist Bo (2003) Combining physical, cultural and biological methods: prospects for integrated non-chemical weed management strategies. Weed Research, 43 (5), pp. 303-322.

[img] PDF
Limited to [Depositor and staff only]

333Kb

Online at: http://www.blackwell-synergi.com

Summary

Physical, cultural and biological methods for weed control have developed largely independently and are often concerned with weed control in different systems: physical and cultural control in annual crops and biocontrol in extensive grasslands. We discuss the strengths and limitations of four physical and cultural methods for weed control: mechanical, thermal, cutting, and intercropping, and the advantages and disadvantages of combining biological control with them. These physical and cultural control methods may increase soil nitrogen levels and alter microclimate at soil level; this may be of benefit to biocontrol agents, although physical disturbance to the soil and plant damage may be detrimental. Some weeds escape control by these methods; we suggest these weeds may be controlled by biocontrol agents. It will be easiest to combine biological control with fire and cutting in grasslands; within arable systems it would be most promising to combine biological control (especially using seed predators and foliar pathogens) with cover-cropping, and mechanical weeding combined with foliar bacterial and possibly foliar fungal pathogens. We stress the need to consider the timing of application of combined control methods in order to cause least damage to the biocontrol agent, along with maximum damage to the weed and to consider the wider implications of these different weed control methods.


EPrint Type:Journal paper
Keywords:arable crops, bacteria, cover crops, cutting, fire, flame weeding, grasslands, insects, inter-cropping, mechanical weed control, plant pathogenic fungi
Subjects: Crop husbandry > Weed management
Research affiliation: Denmark > DARCOF II (2000-2005) > I. 8 (MPW) Management of perennial weed species in organic farming
Deposited By: Bo Melander, Senior Scientist
ID Code:1469
Deposited On:07 Oct 2003
Last Modified:12 Apr 2010 07:28
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

Repository Staff Only: item control page