Intercropping of kale increases the abundance : And species richness of the natural enemies of Lipaphis erysimi (Hemiptera: Aphididae)

ISBN-13: 9783659936968 / Angielski

Valkíria Silva; Luís Cláudio Silveira; Alexandre dos Santos

Opis

The effects of intercropping kale (Brassica oleracea L. var. acephala) with coriander (Coriandrum sativum), dill (Anethum graveolens), African marigold (Tagetes erecta) and calendula (Calendula officinalis) on the abundance, species richness and diversity of predators and parasitoids of Lipaphis erysimi (Kaltenbach) have been assessed. The numbers of aphids, parasitized aphids and natural enemies were determined during two consecutive phases. The first period comprised the vegetative phase of companion plants up to the onset of flowering and the development of kale up to the start of harvesting, while the second period encompassed the late flowering of companion plants up to senescence and the complete harvesting phase of kale. The establishment of L. erysimi and its natural enemies during the first period was enhanced by the climatic conditions and the additional nutritional resources offered by companion plants.

O autorze

Silva, Valkíria
Majored in Agronomic Engineering at Universidade Federal de Viçosa (2007). PhD in Agronomy/Entomology and Post-doctorate in Entomology and Crop Science/Seed Production from the Universidade Federal de Lavras. Experience in the Integrated pest management (IPM), with emphasis on Biological Control, Interaction Insect/Plant, Agroecological system.