Advances in weed management strategies

Abstract Weed problems are currently solved by using inputs such as herbicides and soil tilling and by improving our knowledge of the ecophysiological process governing weed infestations and their competitive outcome on crop yield. In this paper, we review three different approaches for studying weed population dynamics (demographic, mechanistic and long-term studies) and discuss some of the advances in weed management strategies deriving from them. We present encouraging examples of successful strategies designed from population studies in annual and perennial weeds, as well as some ideas of how we should expand our knowledge base to achieve sustainable weed management strategies.

[1]  Theodore M. Webster,et al.  Accuracy of a Global Positioning System (GPS) for Weed Mapping , 1997 .

[2]  C. Ghersa,et al.  Prediction of Sorghum halepense (L.) Pers. rhizome sprout emergence in relation to air temperature , 1985 .

[3]  Claudio M. Ghersa,et al.  The population ecology of Datura ferox in soybean crops. A simulation approach incorporating seed dispersal , 1987 .

[4]  J. Coussio,et al.  Quantitative determination of total alkaloids and scopolamine in Datura ferox growing in Argentina. , 1976, Planta medica.

[5]  C. Ballaré,et al.  The demography of Datura ferox (L.) in soybean crops , 1987 .

[6]  M. Horowitz Spatial growth of Sorghum halepense (L.) Pers , 1973 .

[7]  J. McNeill,et al.  Biology and ecology of weeds , 1982, Geobotany.

[8]  E. Satorre,et al.  The effect of temperature on sprouting and early establishment of Cynodon dactylon. , 1996 .

[9]  S. Moss Strategies for the Prevention and Control of Herbicide Resistance in Annual Grass Weeds , 1997 .

[10]  C. Fernández-Quintanilla Studying the population dynamics of weeds , 1988 .

[11]  J. Holtum,et al.  Herbicide Resistance in Plants: Biology and Biochemistry , 1994 .

[12]  M. A. Martínez-Ghersa,et al.  Evolution of resistance to diclofop‐methyl in ryegrass (Lolium multiflorum): investigation of the role of introgression with related species , 1997 .

[13]  Clement A. Tisdell,et al.  Weed control economics , 1987 .

[14]  C. Ghersa,et al.  The use of thermal calendar models to improve the efficiency of herbicide applications in Sorghum halepense (L.) Pers , 1990 .

[15]  C. Ghersa,et al.  Temperature effects on dormancy release and germination rate in Sorghum halepense (L.) Pers. seeds: a quantitative analysis , 1990 .

[16]  C. Francis,et al.  Crop improvement for sustainable agriculture , 1993 .

[17]  Martin Mortimer,et al.  Dynamics of weed populations , 1995 .

[18]  Mark V. Wilson,et al.  Population Modeling Approach for Evaluating Leafy Spurge (Euphorbia esula) Development and Control , 1988, Weed Technology.

[19]  S. Hǻkansson,et al.  Multiplication, growth and persistence of perennial weeds. , 1982 .

[20]  Martin J. Kropff,et al.  Modelling Crop-Weed Interactions , 1993 .

[21]  C. Ghersa,et al.  Using phenology prediction in weed management: a review , 1995 .

[22]  Dawn Y. Wyse-Pester,et al.  Characterizing spatial stability of weed populations using interpolated maps , 1997, Weed science.

[23]  C. Ghersa,et al.  A mathematical model to predict Sorghum halepense (L.) Pers. seedling emergence in relation to soil temperature , 1990 .

[24]  C. Dyson,et al.  An economic threshold model for spraying herbicides in cereals , 1993 .

[25]  M. L. Roush,et al.  COEVOLUTION OF AGROECOSYSTEMS AND WEED MANAGEMENT , 1994 .

[26]  E. Satorre,et al.  A comparison of root and shoot competition between spring cereals and Avena fatua L. , 1992 .

[27]  Claudio M. Ghersa,et al.  Weed Ecology: Implications for Management , 1984 .

[28]  M. Dingkuhn,et al.  CONTROL OF STOMATAL CONDUCTANCE AND LEAF ROLLING IN O. SATIVA AND O. GLABERRIMA UPLAND RICE , 1999 .

[29]  M. A. Martínez-Ghersa,et al.  Seed dispersal, distribution and recruitment of seedlings of Sorghum halepense (L.) Pers. , 1993 .

[30]  Claudio M. Ghersa,et al.  Field-crop systems of the Pampas , 1992 .

[31]  J. Harper Population Biology of Plants , 1979 .

[32]  M. L. Roush,et al.  Selection pressures for diclofop-methyl resistance and germination time of Italian ryegrass , 1994 .

[33]  H. Lebaron DISTRIBUTION AND SERIOUSNESS OF HERBICIDE-RESISTANT WEED INFESTATIONS WORLDWIDE , 1991 .

[34]  R. Benech-Arnold,et al.  Demography of Wild Oat in Barley Crops: Effect of Crop, Sowing Rate, and Herbicide Treatment , 1999 .

[35]  T. V. Madsen INTERACTIONS BETWEEN INTERNAL AND EXTERNAL CO2 POOLS IN THE PHOTOSYNTHESIS OF THE AQUATIC CAM PLANTS LITTORELLA UNIFLORA (L.) ASCHERS AND ISOETES LACUSTRIS L. , 1987 .

[36]  M. L. Roush,et al.  SEARCHING FOR SOLUTIONS TO WEED PROBLEMS : DO WE STUDY COMPETITION OR DISPERSION ? , 1993 .

[37]  C. Ghersa,et al.  Improving Johnsongrass (Sorghum halepense) Control in Soybean and Sunflower Cropping Systems , 1993, Weed Science.

[38]  M. L. Roush,et al.  Future Outlook for Herbicide-Resistance Research , 1990, Weed Technology.

[39]  C. Ballaré,et al.  Role of seed reproduction in the population ecology of Sorghum halepense in maize crops , 1988 .

[40]  R. Forman Land Mosaics: The Ecology of Landscapes and Regions , 1995 .

[41]  J. Caseley,et al.  Herbicide Resistance in Weeds and Crops , 1991 .