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Reduction of foliar dislodgable pesticide residues from orange trees through spray-washing with water or lime solution


The volume of water applied is the single important factor in reducing foliar dislodgable residues by tree-washing with an oscillating boom spray rig, and none of the other washing parameters tested could be altered so as to increase washing efficiency and allow a reduction in the amount of water used. The additiion of lime to the washing solution did not enhance dissipation of foliar dislodgable residues of parathion or dioxathion.

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Carman, G.E., Gunther, F.A., Westlake, W.E. et al. Reduction of foliar dislodgable pesticide residues from orange trees through spray-washing with water or lime solution. Bull. Environ. Contam. Toxicol. 16, 646–651 (1976).

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  • Parathion
  • Vehicle Speed
  • Organophosphorus Pesticide
  • Orange Tree
  • Lime Application