Diversidad de artrópodos para el control biológico de áfidos (Hemiptera: Aphididae), en producciones al aire libre de repollo (Brassica oleracea) del Cinturón Hortícola de La Plata, Buenos Aires, Argentina

DUBROVSKY BERENSZTEIN, Nadia; MARASAS, Mariana Edith

Arthropod diversity for biological control of aphids (Hemiptera: Aphididae) in outdoor cabbage productions (Brassica oleracea) in the Horticultural Belt of La Plata, Buenos Aires, Argentina.

Authors

DUBROVSKY BERENSZTEIN, Nadia Curso de Agroecología. Facultad de Ciencias Agrarias y Forestales. Universidad Nacional de La Plata.
MARASAS, Mariana Edith Curso de Agroecología. Facultad de Ciencias Agrarias y Forestales. Universidad Nacional de La Plata.

Keywords:

Conservation biological control, family farms, non-crops areas, horticulture

Abstract

The objectives of this study were: i) to characterise the community of natural enemiesof aphid
compositionin crop cabbage (Brassica oleracea L.) and non-crop areas (edge, border and
resting stripe) and ii) to evaluate the potential biological control events on colonies of the phytophagous.
This outdoor work was held in two plots of a commercial farm with agro-ecological
basis management, located at the Horticultural Belt of La Plata. The arthropod-fauna was
studied by direct observation, manual collection and trawl.Greater richness and abundance
of natural enemies was obtained in the non-crop areas. Generalist predators were the most
frequent guild, followed by specialists, parasitoids and hyperparasitoids.