INTEGRATED WEED CONTROL IN MAIZE

Area of Science:

• Agricultural Science
• Agronomy
• Crop Protection

Background:

• European Union legislation mandates integrated pest management (IPM).
• Weed control is a critical crop protection measure for maize in Western Europe.
• New legislation necessitates evaluating practical and economical IPM systems for maize.

Purpose of the Study:

• To evaluate the effectiveness and economic viability of different integrated weed control techniques in maize.
• To compare integrated and mechanical weed control strategies against conventional chemical control.
• To assess the impact of weed control methods on labor efficiency and economic parameters.

Main Methods:

• Field trials conducted over multiple growing seasons (2007-2009 and 2011-2014) on a sandy loam soil.
• Comparison of integrated weed control, mechanical weed control (including flex-tine harrowing and inter-row cultivation), and conventional chemical weed control.
• Evaluation of weed growth and economic impact of various weed management strategies.

Main Results:

• Integrated weed control combining chemical and mechanical methods is a feasible option for conventional farming.
• Specific mechanical approaches involved pre- and post-emergence harrowing, reduced-rate herbicides, and inter-row cultivation.
• Economic impact and weed control effectiveness varied across the evaluated systems.

Conclusions:

• Combining chemical and mechanical weed control presents a viable IPM approach in maize cultivation.
• Careful planning, considering the actual weed population and judicious herbicide selection, is crucial for effective IPM.
• Optimized weed management strategies are necessary to meet the demands of new EU legislation.