Di-Bak Parkinsonia Bioherbicide
Active Ingredient: Biological Organism Fungus (Lasiodiplodia pseudotheobromae NT039, Macrophomina phaseolina NT094 & Neoscytalidium novaehollandiae QLD 003)
Di-Bak Parkinsonia Bioherbicide is made from naturally occurring fungal pathogens that induce dieback in the woody weed Parkinsonia aculeata (also known as Parkinsonia, Barbados Flower-Fence, Horse Bean, Jelly Bean Tree, Jerusalem Thorn, Mexican Palo Verde, Mexican Paloverde). Di-Bak Parkinsonia Bioherbicide is an environmentally-friendly control method for managing, and potentially eradicating Parkinsonia aculeata.
Di-Bak Parkinsonia Bioherbicide consists of one or a combination of specific fungi which have been isolated from weeds growing naturally in Australia that exhibited dieback disease. The fungi are grown on a substrate (carrier) in sterile conditions until fully colonised. The inoculum is then encapsulated or compacted to a dosage form that is stable and conveniently delivered to the weed to induce dieback.
The Di-Bak Parkinsonia Bioherbicide is administered by drilling a hole slightly larger in diameter than a capsule into the trunk of the weed. Moisture within the Injecta 400 drill wound reactivates fungal growth with subsequent fungal colonisation of the target tree. The Di-Bak Parkinsonia Bioherbicide capsules are inserted into the tree with the Injecta 400 Applicator where they are sealed with a plug ensuring safe and effective placement. The capsule dissolves, releasing the biological agent into the vascular system of the tree, killing it from the inside. The process offers a direct hit on the weed with minimal environmental impact.
Once injected with Di-Bak Parkinsonia Bioherbicide, Infection occurs in the stem/trunk of the tree at the site of insertion of the capsule. Endophytic fungi colonise the internal plant tissue at the application site which subsequently leads to pathogenic infection.
External symptoms include, but are not restricted to, large elliptical surface lesions around the inoculation wound, change in bark colouration from green to yellow, brown or red, leaf drop, dieback of stem and branch tips, bark splitting and peeling. Necrosis of the stem kills the vascular tissues leading to severe stem damage and eventual plant death.
Parkinsonia is native to tropical America but has spread throughout the world as an ornamental and shade tree. It can form dense impenetrable thorny thickets along river courses, bore drains, floodplains and grasslands. This makes land inaccessible for people and animals, restricts stock access to drinking water, decreases the amount of pasture available and excludes native vegetation.
Parkinsonia has the potential to invade up to 70% of Australia’s mainland and is one of the worst weed threats to Australia’s rangelands. It generally invades waterways first, with infestations expanding outward to wetlands, flood plains and pastures. Dense impenetrable thickets can now be found throughout Northern Australia with significant impacts on productivity and land values.
Di-Bak Parkinsonia Bioherbicide Pack Sizes: 200 & 1000 Capsule Packs
Registrant: ADAMA Australia Pty Ltd. (APVMA #: 90695)