Bayer Crop Science

Technology to protect
The success of Movento is embedded in the active ingredient spirotetrmat, which is transported by both the Xylem (Acropetal transport of root to shoot - upwards transportation) and the Phloem (Acro/basipetal transport source to sink leaves to growing points in roots and leaves). This unique mode of action makes Moventoa two way systemic product
Typical systemic insecticides are transported in the xyleem (they are one-way systemic) e.g. neonicotinoids	Movento is different as it is additionally transported through the phloem- making it 2-way-systemic
Pressure flow model of phloem transport After foliar application of Movento, the a.i. spirotetramat is taken up into the plant cells and instantly transformed into spirotetramat-enol. Spirotetramat-enol enters the phloem and due to its favourable physico-chemical properties it is retained in the phloem to be translocated in direction of the phloem stream. Phloem transport is driven by the osmotically generated pressure flow. The products of photosynthesis (sucrose) are loaded actively at the site of production (= source) into the phloem. The increased sucrose concentration in the phloem raises the osmotic potential. Water flows into the phloem from the nearby xylem element increasing the turgor pressure at the source driving the phloem sap down a pressure gradient towards a sink (= site of sugar utilisation). Sucrose is transported out of phloem at the sink into developing leaves, buds, roots, and fruits. The osmotic potential decreases, water moves out of the phloem and the turgor pressure decreases.
Pressure flow model of Movento in the plant