Behavioural control of the cotton boll weevil, "Anthonomus grandis" (Coleoptera: Curculionidae), in Northeast Brazil

• Autores: J. Ednilson Miranda, C.A.D. Da Silva
• Localización: Boletín de sanidad vegetal. Plagas, ISSN 0213-6910, Vol. 31, Nº 4, 2005, págs. 509-515
• Idioma: inglés
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• Resumen

  • The boll weevil, Anthonomus grandis, is the most important pest of cotton farms in Northeast Brazil and could cause significant losses to the production. The Boll Weevil Attract and Control Tube (BWACT) have been used by the producers as tactic of behavioural control. Because of their located and specific control, this method is considered an appropriate tool to the concepts of Integrated Pest Management (IPM), working as an alternative to the chemical control. This study sought to evaluate the use of such devices in the control of the boll weevil in cotton farms in Northeast Brazil. In comparative experiments among conventional management (where the use of the chemical control prevails), IPM, and their interactions with the use of BWACT, smaller number of applications of insecticides was verified for the control of the insect in areas where it was allied IPM plus BWACT. The device was efficient on the control of the boll weevil when installed at the planting time and reduced remaining populations of the insect after the stalk destruction. The adoption of IPM plus BWACT resulted in larger liquid incomes than the non adoption of IPM and the non use of the device.