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The bagging of Annona crassiflora fruits to control fruit borers=Ensacamento de frutos de Annona crassiflora contra broqueadores de frutos

By Márcia Michelle Fonseca, Patrícia Nery Silva Souza, Manoel Ferreira Souza, Germano Leão Demolin Leite and José Cola Zanuncio

Abstract

The objective of this work was to evaluate the use of plastic bags to protect the fruits of Annona crassiflora (Annonaceae) against Cerconota sp. (Lepidoptera: Oecophoridae). As protection against this fruit-boring insect, 100 fruits were enclosed in plastic bags. Another 100 fruits were not bagged. The fruits were selected from the following five ranges of diameters: 1 = 0.5 – 1.99; 2 = 2.00 – 3.99; 3 = 4.00 – 7.90; 4 = 8.00 – 11.90; and 5 = 12.00 – 16.00 cm. The bagged fruits of various diameters were attacked less frequently by the pest. The bagged fruits with a diameter of less than two cm were not attacked. The percentage of fruits attacked and the number of larvae/fruit increased as the diameter of fruits increased in both treatments. The bagged fruits initially less than two cm in diameter showed the greatest final diameter and height.<br><br>O objetivo deste trabalho foi avaliar o efeito do ensacamento dos frutos de Annona crassiflora (Annonaceae) no controle de Cerconota sp. (Lepidoptera: Oecophoridae). 100 frutos foram ensacados com saco plástico e 100 não ensacados em cada uma das cinco categorias de diâmetro: 1 = 0,5 – 1,99; 2 = 2,00 – 3,99; 3 = 4,00 – 7,90; 4 = 8,00 – 11,90 e 5 = 12,00 – 16,00 cm. Os frutos ensacados com sacos plásticos, nos diferentes diâmetros, apresentaram-se menos broqueados. Os frutos ensacados com menos de dois cm de diâmetro não foram broqueados. Observou-se aumento na percentagem de frutos broqueados bem como no número de brocas/fruto broqueado com o aumento na categoria do diâmetro de frutos nos diferentes tratamentos. Os frutos ensacados com menos de dois cm de diâmetro apresentaram maiores diâmetros e alturas de frutos

Topics: araticum, Cerconota sp., plastic bag, cultural control, araticum, Cerconota sp., saco plástico, controle cultural., Agriculture (General), S1-972, Agriculture, S, DOAJ:Agriculture (General), DOAJ:Agriculture and Food Sciences
Publisher: Eduem (Editora da Universidade Estadual de Maringá)
Year: 2012
DOI identifier: 10.4025/actasciagron.v34i3.14713
OAI identifier: oai:doaj.org/article:4cbbe23dcec949b1b0bcf3e9e4a9cff2
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