Weed Management

Bhowmik and Inderjit (2003) examined some considerable efforts in designing alternative weed management strategies due to increase in the number of herbicide-resistant weeds and environmental concerns in the use of synthetic herbicides. The conventional synthetic herbicides are becoming less and less effective against the resistant weed biotypes. These authors discussed the role of allelopathic cover crops crop residues, natural compounds, and allelopathic crop cultivars in natural weed...

Allelopathic Plant Materials

In spite of the widespread apprehension that applications of allelopathy in agriculture need to undergo an extensive refinement and techno-commercial perfections, simpler means especially for small holder farms with appreciable results have been reported. strategies that involve the mechanism of allelopathy to an appreciable magnitude include use of allelopathic cultivars, mulches, organic manures, and plant products in wetlands. In aquatic systems, strategies include use of allelopathic plant...

References

Anderson, R.C., Fralish, J.S., Armstrong, J.E., Benjamin, P.K. The ecology and biology of Panax quinquefolium L. (Araliaceae) in Illinois. Am Midl Nat 1993 129 357-372. Armah, C.N., Mackie, A.R., Roy, C., Price, K., Osbourn, A.E., Bowyer, P., Ladha, S. The membrane-permeabilizing effect of avenacin A-1 involves the reorganization of bilayer cholesterol. Biophys J 1999 76 281-290. Arneson, P.A., Durbin, R.D. The sensitivity of fungi to a-tomatine. Phytopathology 1968 58 536-537 Assa, Y.,...

Suppressive Soils

When soils are characterized by a very low level of disease development even though a virulent pathogen and susceptible host are present, they are known as suppressive soils. Biotic and abiotic elements of the soil environment contribute to suppressiveness, however most defined systems have identified biological elements as primary factors in disease suppression. Many soils possess similarities with regard to microorganisms involved in disease suppression, while other attributes are unique to...

The Influence Of Pathogens On Interference And Allelopathy

Natural plant populations increase in production and number of individuals until constrained by environmental limitations (Burdon, 1987). The constraint of plant growth by the environment is often mediated through plant interference. Therefore, the ability of plants to interfere with their neighbours is important in determining their abundance in a community. Plant pathogens generally reduce the development, production and longevity of their hosts. In plant communities, this 'burden of a...

Allelochemicals As Biopesticides

Extracts of many plants with anthelminthic or antimicrobial properties have been proven effective in reducing soil populations of plant-parasitic nematodes (Ferris and zheng, 1999). Experiments which evaluated plant species documented in Chinese traditional medicine to be anthelminthic against plant-parasitic nematodes identified 153 aqueous plant extracts with activity against nematodes (Ferris and Zheng, 1999). Within a 24-hour exposure period, seventy-three of the extracts killed either...