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Introducing new plants to an area can have positive and negative effects on the environment, economy and community.
Summer weeds can rob subsequent crops of soil nitrogen and stored soil water. They can also reduce crop emergence by causing physical and/or chemical interfence at seeding time.
Some aquatic plants used in ponds and aquariums are highly invasive and have become serious weeds in natural waterways.
In an integrated weed management program, control of weeds should occur in the fallow, pre-sowing, early post-emergent and in pasture phases.
This page lists species commonly found on or near saline land in southern Western Australia. These species can be used as indicators of the level of salinity and waterlogging on the site.
Growers have eroded their ryegrass seedbanks by 99.8% from an average of 183 ryegrass/m2 in 2001 to 0.33 ryegrass/m2 in 2017 across the 27 focus paddocks.
High priority invasive species are defined in the Invasive Species Plan for Western Australia as high risk species that can establish widely, and if so cause the most undesirable impact.
Various diseases can damage native plants at all stages of growth. A description of some of the more important diseases is given here, together with general methods for control.
The Department of Primary Industries and Regional Development has reviewed control requirements for a range of animal and plant species to help guide efforts in protecting the State’s agricultural
Weeds sprayed with a sub-lethal dose of a phenoxy, hormone type herbicide appear to become more palatable to stock.