BHA’s Di-Bak H
What is it?
Hexazinone is a triazinone inhibitor of Photosystem II (Herbicide Group C) of photosynthesis. It interferes with electron transport from QA to QB leading to electrons being diverted to creation of toxic reactive molecules leading to death of chloroplasts. This starts a chain reaction leading to death of cells and tissue. It is active against many broadleaf weeds and some woody weeds. It has little activity against grasses. It is readily absorbed through roots and leaves and has been successfully applied as a stem injection or as cut and spray on larger susceptible trees. Considered highly active against eucapylpts while many pines are tolerant.
What is its fate in plants?
It is systemic and moves readily through the xylem to the foliage. Stem injections can be applied any time of year but are preferable during times of good sap flow. This herbicide is only translocated apoplastically (upwards).
What does BHA technology avoid?
It is very water soluble and does not readily bind to soil so can be a threat to ground water. It is degraded slowly by microbial action and is also resistant to photolysis or general soil chemical reactions. The half-life in soil is at least 90 days.
The concentration of active Hexazinone in DI-Bak H means it can work directly on the weed stem or trunk in a targeted manner with maximum efficacy.
Di-Bak H is comprised of 750g/kg HEXAZINONE in a capsule dose (350mg per capsule).