Download Advisory work in crop pest and disease management by J. Palti, R. Ausher (auth.), Dr. Josef Palti, Dr. Reuben PDF

By J. Palti, R. Ausher (auth.), Dr. Josef Palti, Dr. Reuben Ausher (eds.)

Advisory paintings, by way of its very nature, is an middleman among the re­ seek employee and people who observe the result of his examine. The problem of advisory paintings is to plan technique of and locate pathways for transmitting study effects to the consumer, conquer the reluctance of the latter to alter, and sometimes mix novel principles with well-estab­ lished traditions. Nowhere is that this problem more than in farming. this is often very true in constructing international locations, the place the distance within the academic point among study employees and farmers can be ex­ tremely broad. furthermore, village-level advisers are frequently overburdened with non-professional services and aren't sufficiently subsidized up through well-trained specialist advisers. hence, in lots of of those international locations there's a severe discrepancy among the data to be had and that wanted and truly utilized at the farm. Advisory paintings in crop defense isn't any exception, yet earnings to a point from proof: (1) as a result very likely catastrophic nature of pest assault, governments frequently function a supervisory crop security provider, the workers of that may be in a position to dispense a few pest keep watch over suggestion; and (2) the workers of pesticide vendors has a tendency to fill, at the very least partly, the necessity for recommendation on the way to struggle pests and dis­ eases with chemicals.

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Sample text

How this is done, and especially how much of the advice to farmers is given by crop advisers and how much by specialized crop protection personnel, depends on a few factors, some of which are mentioned here as well as in the section on the crop protection adviser and his tasks (Chap. 6). The factors to be referred to here are: a) The risk ofloss from pest and disease involved in growing prevalent crops. b) The advisory personnel available, their proficiency, and the frequency with which crops can be visited, taking due note of commercial advisers who may visit the farmer.

PALTI: The Range of Crop Protection Advice Is Extremely Wide In many aspects, crop protection is essentially a regional problem (Palti 1981), because infestations in one grower's field endanger those of his neighbours, and treatments applied to one field may affect the growth of adjoining fields or their populations of beneficial insects. This presents the adviser with problems of the control of pests as well as of the perceptions of farmers (Chaps. 6). 1. References Grogan RG (1981) The science and art of plant-disease diagnosis.

For this purpose, full use should be made of the data bases available in most meteorological services. Then cooperation must be established with all stations that keep weather records, and with growers who do so. A constant flow of information on weather experienced or expected is the basis for the evaluation of risks of direct weather injury to crops, of the occurrence of stress conditions that may accentuate parasite trouble, and of conditions that favour parasites so much that outbreaks may be imminent.

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