Systemic Property of HWS

The absorption and translocation of BTWS were determined using a standard operational procedure developed by the National Pesticide Discovery South Center (Zhejiang). Common amaranth Amaranthus retroflexus) was used as the target plant. Table 8.28 showed that BTWS was absorbed through buds, roots, stems, and leaves and exhibited good inhibitory effect. 

Data suggested that BTWS exhibited xylem mobility. It could be translocated from leaf or stem to root, or from root to leaf or stem. BIWS exhibited good inhibitory effect against the growth of plants by foliar and stem spray or root application. The inhibitory effect was produced mainly via foliar application. Therefore, BIWS is recommended as a post-emergence herbicide. 

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