Control Effect of Glyphosate·MCPA-Na·Fluroxypr-mepthyl 60% WP against Weeds in Eucalyptus Field

[Aims] The study is to confirm the control effect, optimum dosage and security of 60% WP of glyphosate,MCPA-Na and fluroxypr-mepthyl against weeds in eucalyptus field. [Methods] Field trials were carried out by using methods of inter-row directed stems-leaves spraying and regular survey. [Results] The recommended dose of glyphosate, MCPA-Na and fluroxypr-mepthyl 60% WP was 1 687.5-2 250 g a.i./ha, the controlling effects of glyphosate,MCPA-Na and fluroxypr-mepthyl 60% WP on plant and flesh weight were higher than 93% after 30 d of spraying, and showed better controlling effects compared to spraying single dose of glyphosate SP 50%, MCPA-Na 56% SP and 200 g/L fluroxypyr. [Conclusions] Glyphosate·MCPA-Na·fluroxypr-mepthyl 60% WP shows good control to weeds in eucalyptus field and is safe on eucalyptus growth.