Registered dose of herbicides may be higher than rate required for controlling weed species depending on growth stages. In order to study the effect of individual post-emergence application of 2,4-D plus MCPA and three sulfonylurea herbicides at four- to six-true leaf stage of weeds, experiments were conducted in 2011 at the greenhouse of Agricultural Faculty of Ferdowsi University of Mashh...

In a previous paper Elliston and Beare (2005) explored the role of landholder cooperation in the eradication of invasive weeds in an agent-based simulation framework. The analysis drew upon a cellular automata (CA) model representing the economic incentives for cooperation. The analysis indicated that cooperative strategies may offer a means of controlling endemic invasive species that might ot...

To meet the future challenges facing biological control of weeds, two issues are considered: first the ‘paranoia’ about the threat of biocontrol agents to non-target plant species, and second, the ‘honeymoon’ regarding the lack of accountability for projects that failed to achieve their desired objectives. With a suggested new mindset on these issues, proposals are made to deal with five curren...

A recently completed (Nov. 2009), Cornell University project that focused on controlling weeds in strawberries during the establishment year by transplanting dormant berry plants into a killed cover crop showed great promise, but revealed a barrier. Most growers had difficulty planting through the cover crop. This resulted in slower establishment during the first month and possibly caused skips...

Information on weed distribution within the field is necessary to implement spatially variable herbicide application. This paper deals with the development of near-ground image capture and processing techniques in order to detect broad leaf weeds in cereal crops, under actual field conditions. The proposed methods use both colour and shape analysis techniques for discriminating crop, weeds and ...