01261nam a2200217 a 450000100080000000500110000800800410001902000150006010000220007524501230009726001700022052004880039065000210087865000130089965000190091265300170093165300290094865300220097765300260099965300180102520031642019-05-08 2001 bl uuuu u00u1 u #d a90719122211 aALMEIDA, R. P. de aEffect of the population levels of Aphis gossypii on cotton agronomic traits and fibre quality.h[electronic resource] aIn: ANNUAL MEETING OF ENTOMOLOGISTS IN THE NETHERLANDS, 12. ,2001, Amsterdam. Proccedings ...Amsterdam: Nederlandse Entomologische Vereniging, 2001. p. 97-100.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 aPulgão do algodoeiro aUpland cotton