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To identify, to characterize and to leave for the methods of more efficient fitossanitrio control go how to not only improve the life of the producers as well as of the consumers in general. I. BIBLIOGRAPHICAL REVISION? INTRODUCTION the agrarian branch arms with importance partner-econmica of great relief, having been defined as base of the development of our Parents. The progress of this, for consequncia, closely meets dependent of agriculture and the cattle one, also subordinated the vegetal production. The unitrias productions you measured of agriculture has been low, compared with the values gotten in other countries of the Austral region of the African Continent, therefore still it is difficult to find the solution for the diverse factors afectam that them, as they are: the qualified staff, and not only, the seeds, the fertilizers, the plagues, illnesses, the infestantes, the pesticides, etc.

This work is mentioned, in particular the plagues that harm the culture of the garlic, whose study and rational use of the natural resources they would constitute an indispensable way to the progress of our agriculture, diminishing the inherent damages to these factors and others the one that it is conditional. The plagues had constituted, since the primrdios of agriculture tie to our days, concern of the seen Man to be responsible for the reduction of the productions of the cultures, today aggravated for impressive demographic increase world-wide e, therefore, for the constant food search. The plagues provoke damages under diverse forms: in the cultivated fields it is necessary to invest – one high one I am numbered of hours in cultural operations for its containment or eradication. Only in the United States, the losses provoked for the plagues had been esteem in 5 a thousand million dollar, value that is only surpassed by losses caused for the erosion of the ground in those Parents. On the other hand, it is calculated that 16% of the value of the harvests if must the cultural operations.