Mechanical and chemical control measures can be effective but control is very site specific. Contact an expert for advice (Land Protection, 2001).
Physical: Pond apple trees and seed are readily destroyed by fire and research into the reintroduction of regular burning to areas that are tolerant to this practice, eg. sedge lands, may prove successful as a management tool, (Land Protection, 2001). Pulling and dozing has been successful in ditches and drains. (Land Protection, 2001)
Chemical: There are no chemicals currently registered for the control of pond apple although some herbicides are available for other woody weeds that grow in similar situations. Some trials involving overall spray, basal bark and stem injection have been conducted and this research is continuing. "Stems often fuse together giving the appearance of a single stem. In this situation each original stem maintains its own sap system. This complicates control by herbicide" (Land Protection, 2001).
2. Land Protection, 2001. Pond apple. PP58, NRM facts, pest series. The State of Queensland (Department of natural Resources and Mines).
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