The presence of original plantsspecies are necessary and associated with preservation of the ecosystem. However, native plants species can be threatened or even vanish by the appearance of invasive plants species that can alter the ecosystem. Furthermore, invasive plants species are arrive from the external ecosystem which can harm ecosystems, the environment, economic deprivation, and adversely affect of biodiversity and human sanity (Regulation of The Ministry of Environment andForestry, 2016). For instance, the emergence species of Acacianilotica in Baluran National Park, East Java as an invasive plants. In fact, Qirom et al (2007) stated that almost 9.850ha from 10.000 ha of this conservation area has been invaded by this plants.Consequently, they are pressure for pristine plants and animals that live on there.

Indeed,the Impact of invasive species are notonly in ecological, but also sosioeconomic and human health (Reaser etal., 2007). Primarily, Kaufman &Kaufman (2012) declared that invasive plant species can controlled by three ways:biological, chemical and mechanical methods.             First, biological control is involves genuine natural competitor. Inaddition, the benefit of this techniques are inexpensive,minor hazard and no peril to human fitness and the environment.

In contrast, the negative side of thisways are extremely spesific on biological agent for each target type and cannot omit all invasive plant species (Kaufman& Kaufman, 2012). For example, Malacorhinusirregularis (Coleoptera), an insect is appropiate for biological control againstMimosa pigra        (Heard et al., 2005).

Nevertheless, the practice of purely biological control does not generate the expected results and takes long period. However, the merging of several methods such as biological, chemical and mechanical proved tobe successfully applied to Mimosa pigra, in Australia(Paynter and Flanagan, 2004).             Secondly, chemical control is utilize chemicalmaterial particularly herbiside  that areeither destroy target plants or permeated into the plants. Then, the advantage ofthis means are murder mentioned plantsand deficient of work force.

Nevertheless,the disadvantages are expensive, unsafe widely impact on the environmentand must be carefully and properly in applying it (Kaufman & Kaufman, 2012). For instance,in Beltsville-USA, herbicide glyphosate is fit used to hold the reins of Circiumarvense as invasive plant (Ziska et al., 2004). On the other hand, taking mixture of management,both chemical and non chemical will decrease the danger of herbicide (Kaufman & Kaufman, 2012).             Finally,mechanical control is applied with choping or excavatingusing some tools or machines and burning. Next,the profits of this method are cheapanddiminishing seed yield.

On the contrary, the risksof this way are need many manpower, land disruption, some invasive plant s are welladjusted to flame (Kaufman &Kaufman, 2012). Additionally, torestrain Acacia nilotica in Baluran National Park, East Java byusing a tyrfor tool is more proper thanmanual removal. However, this way has an impact on ground level shift of 1% / m2/ tree (Basari, 2012). On the other hand,  Mooney et al (2005)claimed that blending of mechanical and chemical methods are the top practice.            In conclusion, the most effective method of managing the invasive species is through the application of entire three ways in the integrated system. Thus, the advantages and disadvantages of each approach can be complementary to obtain the optimal result.


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