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Revista Brasileira de Fruticultura
On-line version ISSN 1806-9967
SCHUBER, Joselia Maria et al. Influence of systems of production on the occurrence of natural enemies of aphids on orchards of peach trees in Araucaria-PR. Rev. Bras. Frutic. [online]. 2008, vol.30, n.2, pp. 336-342. ISSN 1806-9967. http://dx.doi.org/10.1590/S0100-29452008000200012.
The pressure of the society has forced the adoption of more sustainable fruit production systems and with less environmental impact. The objective of this work was to verify the influence of production systems of Good Agricultural Practices (GAP) and Conventional Production (CP), about the diversity of natural enemies of aphids present on six orchards of peach trees in the city of Araucaria, PR, from July 2005 to September 2006. The evaluation of the number of natural enemies of aphid's species was made by means of five sampling methods: visual in plants of peach trees; visual in invading plants; yellow water traps of Möericke type; funnel and adhesive traps. In the system GPA, more specimens of natural enemies had been collected (53%) in relation to orchards CP (46%), having the occurrence, in both orchards, of predators of the Syrphidae, Coccinellidae and Chrysopidae family and parasitoids of Hymenoptera order. Concerning the total of collected natural enemies, it was verified the greatest occurrence of aphid predators.
Keywords : Good Agricultural Practices; Conventional Production.