Optimizing herbicide use in an Integrated Weed Management (IWM) context
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Integrated Weed Management: Soybean Seeding Rate and Residual Herbicide
Increased soybean seed cost in recent years has generated interest in reducing seeding rates to maintain consistent economic returns. However, low seeding rates result in reduced established plant stands with slower canopy development, and canopy development is touted as an important element of integrated weed management (IWM). IWM practices have become even more important to slow the developme...
متن کاملUse of Herbicide Tolerant Crops as a Component of an Integrated Weed Management Program
Integrated weed management (IWM) advocates the use of a combination of preventive, cultural, mechanical, and chemical tools to keep weed pressure below threshold levels that reduce yields and profits. Herbicide tolerant crops (HTCs) represent a relatively new weed control technology that can be used in an integrated weed management program. These crops, which enhance weed control options and gr...
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Pests and weeds can develop resistance to pesticides and herbicides soon after they are introduced. This is demonstrated by early reports of insecticide resistance (Melander, 1914) and herbicide resistance (Ryan, 1970). In some cases the first observations of resistance to a particular herbicide have occurred around the same time as its local commercial release (e.g., Heap & Knight, 1990). In o...
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India has a wide range of agroclimates and soil types. The highly diverse agriculture and fanning systems are beset with different types of weed problems. Weeds cause 10-80% crop yield losses besides impairing product quality and causing health and environmental hazards. Invasive alien weeds are a major constraint to agriculture, forestry and aquatic environment. Crop-specific problematic weeds...
متن کاملModelling integrated weed management of an invasive shrub in tropical Australia
1. Where biocontrol programmes for invasive plants are in place, only one-third are fully successful. Integrated weed management (IWM) emphasizes the use of several complementary control measures. 2. We used models of increasing complexity to determine which parameters affect site occupancy of an invasive shrub, Mimosa pigra , in tropical Australia. Two introduced biocontrol agents have spatial...
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