01178naa a2200205 a 450000100080000000500110000800800410001910000220006024501230008226000090020552004880021465000210070265000130072365000190073665300170075565300290077265300220080165300180082377301310084119251872023-01-16       2001    bl uuuu     u00u1 u    #d1 aALMEIDA, R. P. de  aEffect of the population levels of Aphis gossypii on cotton agronomic traits and fibre quality.h[electronic resource]  c2001  aThe cotton aphid is a polyphagous insect and has caused economic losses on upland cotton. Chemical control has been one of the important production costs that have led to a decrease in the profits in most crops. A study was conducted in Paraíba State, Brazil, under irrigation conditions, in the 97/98 harvest, to determine the cotton plant response to different cotton aphid population levels. Their effects on cotton agronomic traits, fibre quality and yield losses was evaluated.  achemical control  aAlgodão  aAphis Gossypii  aCotton aphid  aEconomic threshold level  aFibra do algodão  aUpland cotton  tSection Experimental and Applied Entomology of the Netherlands Entomological Society (NEV), Amsterdamgv. 12, p. 97-100, 2001.