Affiliation:
1. Univ. Nac. del Litoral, Argentina
2. Centro de Estudios Parasitológicos y de Vectores, Argentina
Abstract
Trials during two consecutive soybean cycles were performed in central Santa Fe in order to determine the main spider families present in the crop and to determine the influence of spontaneous margin flora on colonization towards the lot. Samplings were done by sweeping net and pitfall traps. It was concluded that:1. Oxyopidae was the most frequent family in the herbaceous layer of both the margins and the soybean crop, and Lycosidae in the lower layer; 2. Margin strips in a soybean lot contribute to the colonization of the crop by spiders of aerial habits and also promote re-colonization following pesticide applications, since they act as shelters. The influence on spiders of terrestrial habits was somewhat lower; 3. The distribution of the populations of spiders of terrestrial habits was homogeneous in a soybean crop seeded directly and these predators had a greater capacity to control pests at all points of the lot.
Subject
General Agricultural and Biological Sciences
Reference38 articles.
1. Biodiversidad, agroecología y manejo de plagas;ALTIERI M.,1992
2. Agroecological foundations of alternative agriculture in California;ALTIERI M.;Agriculture, Ecosystems and Environment,1992
3. Vegetational diversity and arthropod population response;ANDOW D. A.;Ann. Rev. Entomol.,1991
4. Feeding and oviposition on plants by an omnivorous insect predator;COLL M.;Ecology,1996
5. When predators also feed on plants: effects of competition and plant quality on omnivore-prey population dynamics;COLL M.;Ann. Entomol. Soc. Am.,1997
Cited by
16 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献