Allelochemicals: Biological Control of Plant Pathogens and by Inderjit, K.G. Mukerji

By Inderjit, K.G. Mukerji

Biological keep an eye on of plant ailments and plant pathogens is of significant value in forestry and agriculture. there's nice incentive to find biologically lively typical items from better crops which are larger than man made agrochemicals and are a lot more secure, from a well-being and environmental point-of-view. the advance of common items akin to herbicides, fungicides, and their position in organic keep watch over of plant illnesses, shows a discount in environmental and healthiness risks. Allelopathic strategies supply a true destiny in fixing a number of difficulties, for example organic regulate of plant pests. This publication is prepared round the indication that allelochemicals should be hired for organic keep watch over of plant pathogens and plant ailments. in particular, this quantity specializes in (i) discovery and improvement of common product dependent fungicides for agriculture, (ii) direct use of allelochemicals in addition to oblique results via disguise vegetation and natural amendments for plant parasitic pest regulate and (iii) program of allelopathy in pest management.

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S. with the average farm size being 436 acres. Agriculture in the United States is becoming more productive. 8 million farms in the United States, and the average farmer produced enough food to feed 20 people. S. farmer produced enough food each year to feed more than 100 people. S. farm acreage are exported to overseas customers (IFIC 2004). Pest problems and their management vary widely throughout the world, based on economical resources, cultural techniques, climate, soil types, and many other conditions.

Although many definitions of IPM have been advanced, two elements are critical: ƒ using multiple control tactics; ƒ integrating a knowledge of pest biology into the management system. IPM involves the carefully managed use of an array of pest control techniques including biological, cultural, and appropriate chemical methods to achieve the best results with the least disruption of the environment. With IPM, growers are adopting less chemically intensive methods of farming, which may include pest-resistant plant varieties, adjustments in planting times, low tillage, and other non-chemical techniques.

Are two examples of parasitic weeds that represent a serious threat to agriculture in large parts of the world. The life cycle of these parasitic weeds is closely regulated by the presence of their hosts, and secondary metabolites that are produced by host plants play an important role in this interaction. A special interest has been arising on those host-produced stimulants that induce the germination of parasite seeds. Three classes of compounds have been described that have germination-stimulating activity: dihydrosorgoleone, the strigolactones and SL.

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