Evaluating some Herbicides and Mechanical Control for Swallow-wort Management (Cynanchum acutum) in Yazd

Meighani, Fariba

Evaluating some Herbicides and Mechanical Control for Swallow-wort Management (Cynanchum acutum) in Yazd

Document Type : Research Paper

Author

Fariba Meighani

Abstract

Swallow-wort (Cynanchum acutum) is a problematic weed which has recently infested many agricultural fields in Iran especially orchards. Therefore, a three-year experiment was conducted in a randomized complete blocks design with 3 replications in a pistachio orchard in Yazd. Treatments included post-emergence herbicides glyphosate (Roundup 41% SL) at 2, 4, and 6 L/ha+ammonium sulphate (8 kg/ha), paraquqt (Gramaxon 20% SL) at 3 L/ha, garlon (Triclopyr 62% EC) at 2 L/ha, cutting of swallowort, and weed infested control. Results of the first year showed that the best treatment for the control of swallowort was 3 times spraying with glyphosate 6 L/ha. In the second year, the best treatment for the control of swallowort was 3 times spraying with glyphosate 6 L/ha or 3 times spraying with Triclopyr 2 L/ha. Based on the results of the third year, the best treatments for the control of swallowort were 3 times spraying with glyphosate 6 L/ha, 2 and 3 times spraying with triclopyr 2 L/ha or 2 times cutting + triclopyr 2 L/ha. Therefore, it seemed that the systemic herbicides glyphosate and triclopyr had more efficiency in the control of swallow wort, compared to the contact herbicide paraquat.

Keywords

References

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