Calotrope (Calotropis procera) control

“…The significant dispersal of Calotropis procera, along with its high adaptability to severe environments, has driven researchers to consider its invading abilities, it even suffers widespread cutting in several regions as an invasion control strategy [20]. However, the numerous benefits and outcomes from using the plant in industrial and therapeutic aspects could possibly overcome the invasion concerns.…”

Section: Introductionmentioning

confidence: 99%

Population Ecology and Economic Importance of Calotropis procera as an Exotic Medicinal Plant

Ara¹

2017

JENR

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A review is given regarding the medicinal plant Calotropis procera (Aiton) W.T a member of the family (Asclepiadaceae) commonly known as Giant Milk weed. It demonstrated that Calotropis is a perennial xerophytic woody shrub that has a great capacity to inhabit abandoned lands, it tolerated poor soils with limited nutrition and moisture, known to establish an intensive root system as a drought resistance mechanism. It exhibited allelopathic properties and phytoremediation, considered invasive in many habitats. C. procera is widespread in tropical and subtropical regions of the globe, in Egypt it's distributed through several phytogeographic regions with different edaphic properties, consequently, it showed great polymorphism and wide variety in metabolites in accordance to different environments. The seeds possess a unique silk formation that aided in dispersal through wind, water or any moving substance. Environmental conditions specially precipitation rates, was found to control the invasive behavior of the species since it showed no invasive attribute in arid environments where it's originally found such as Egypt or Saudi Arabia, on the contrary, Australia for instance knew C. procera as an invasive naturalized plant. A great benefit could be taken from Calotropis procera on many levels, as on one hand it is known traditionally, in folk medicine to have purgative and anthelimintic properties and used in treating leprosy, ulcers, tumors and piles as well as purgative, anticoagulant, and anticancer, moreover, the plant's latex has been known for cardiac glycoside content and contains compounds with pesticide properties, while on the other hand, its biomass proved a tendency to be a good source of renewable energy and hydrocarbon. Finally, Calotropis procera populations have an immense ecologic role being habitat for several organisms, displaying phytoremedy properties in contaminated soils and its ability to rehabilitate deserted land bringing back life once again.

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“…Prices were based on purchases of the largest commercial size available. Based on the regression equations of Vitelli et al . (2008), the application of treatments to control hiptage‐infested ecosystems (based on 85 000 plants ha −1 ) could cost $A14 324 ha −1 for the cut stump application with picloram, $A5294 ha −1 and $A2676 ha −1 for the cut stump application with glyphosate and fluroxypyr, respectively, and $A1830 ha −1 for the foliar application of dicamba for seedling control.…”

Section: Resultsmentioning

confidence: 99%

“…Other researchers (Carmona et al . 2001; Vitelli et al . 2008) have experienced a decline in efficacy (≤90% reduction in plant mortality) the higher the plants are cut above ground level prior to the application of the herbicides.…”

Section: Discussionmentioning

confidence: 99%

“…To assist in determining the costs of treating hiptage‐infested areas with various control techniques, the basal diameters of all the hiptage plants were measured within the trial site and substituted into the exponential equation, Y = 0.00248 BD ln(BD) for foliar spraying, and the power equation, Y = 0.00189 BD 0.6688 , for cut stump spraying (Vitelli et al . 2008).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Control of the invasive liana, Hiptage benghalensis

Vitelli¹,

Madigan²,

Haaren³

et al. 2009

Weed Biology and Management

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The liana, hiptage (Hiptage benghalensis), is currently invading the wet tropics of northern Queensland and remnant bushland in south-eastern Queensland, Australia. Trials using seven herbicides and three application methods (foliar, basal bark, and cut stump) were undertaken at a site in north Queensland (158 700 hiptage plants ha -1 ). The foliar-applied herbicides were only effective in controlling the hiptage seedlings. Of the foliar herbicides trialed, dicamba, fluroxypyr, and triclopyr/picloram controlled >75% of the treated seedlings. On the larger plants, the cut stump applications were more effective than the basal bark treatments. Kills of >95% were obtained when the plants were cut close to ground level (5 cm) and treated with herbicides that were mixed with diesel (fluroxypyr and triclopyr/picloram), with water (glyphosate), or were applied neat (picloram). The costings for the cut stump treatment of a hiptage infestation (85 000 plants ha -1 ), excluding labor, would be $A14 324 ha -1 using picloram and $A5294 ha -1 and $A2676 ha -1 , respectively, using glyphosate and fluroxypyr. Foliar application using dicamba for seedling control would cost $A1830 ha -1 .The costs range from 2-17 cents per plant depending on the treatment. A lack of hiptage seeds below the soil surface, a high germinability (>98%) of the viable seeds, a low viability (0%) of 2 year old, laboratory-stored fruit, and a seedling density of 0.1 seedlings m -2 12 months after a control program indicate that hiptage might have a short-term seed bank. Protracted recolonization from the seed bank would therefore be unlikely after established seed-producing plants have been controlled.

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Calotrope (Calotropis procera) control

Cited by 19 publications

References 12 publications

Colonisation of the rehabilitated Mary Kathleen uranium mine site (Australia) by Calotropis procera: Toxicity risk to grazing animals

Colonisation of the rehabilitated Mary Kathleen uranium mine site (Australia) by Calotropis procera: Toxicity risk to grazing animals

Population Ecology and Economic Importance of Calotropis procera as an Exotic Medicinal Plant

Control of the invasive liana, Hiptage benghalensis

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