Abstract

MANRIQUE B., Marilyn Belline; CARABALI, Arturo; KONDO, Takumasa  and  BACCA, Tito. BIOLOGY OF THE AVOCADO FRUIT BORER Stenoma catenifer WALSINGHAM (LEPIDOPTERA: ELACHISTIDAE) AND SEARCH FOR ITS POTENTIAL NATURAL ENEMIES. Bol. Cient. Mus. Hist. Nat. Univ. Caldas [online]. 2014, vol.18, n.2, pp.79-92. ISSN 0123-3068.

With the aim to contribute to the generation of integrated pest management strategies that minimize the use of chemical inputs, studies on the biology of S. catenifer were conducted under laboratory conditions. Natural occurring populations of parasitoids of lepidopteran eggs were collected using sentinel eggs of Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae). Also the percentage of damage the avocado fruit borer causes was measured in four Departments. Twenty-two mm, 5th-instars S. catenifer larvae emerged from fruits collected which turned into the prepupal stage after 1.28 days. During the transition from prepupae to pupae changes in the tonality of individuals was observed from bright turquoise blue to bright brown over a period of 0.15 days. The time from pupa to adult took 10.7 days. Longevity was 4.74 days and oviposition took place from the second day after the emergence of the adult moths. It was possible to detect specimens from the Trichogramma Westwood (Hymenoptera: Trichogrammatidae) genus in the municipality of El Cerrito in the Department of Valle del Cauca at 1,920 masl; and in the municipalities of Herveo at 1,876 masl., and Fresno at 1,148 masl. in the Department of Tolima.

Keywords : Persea americana; sentinel eggs; Trichogramma.

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