Control of the invasive liana, Hiptage benghalensis

Abstract

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.

Herbicide application as a habitat restoration tool: impact on native island plant communities

“…Flory & Clay ; Vitelli et al. ) — and identified species‐specific responses, but more importantly, we quantified the response of different life‐history stages of native non‐herbaceous communities to restoration disturbance.…”

“…We controlled not only all IAP in the communitymost studies assess method efficacy on one IAP species (e.g. Flory & Clay 2009;Vitelli et al 2009)and identified species-specific responses, but more importantly, we quantified the response of different life-history stages of native non-herbaceous communities to restoration disturbance.…”

Mirror-image flowers without buzz pollination in the Asian endemicHiptage benghalensis(Malpighiaceae)

“…Along the riverbank, > 30 individuals of H. benghalensis were found. This large liana-like plant is commonly found growing in forest edge and riverside habitats across tropical and subtropical Asia from India to the Philippines, including the Indo-China Peninsula and southern China (Chen & Chen, 1997;Vitelli et al, 2009). It grows mainly as a highclimbing, twining woody liana, but sometimes forms a large shrub in open places.…”

Lianas hiperabundantes como filtros ecológicos para a sucessão secundária em fragmentos florestais degradados

“…Por exemplo, no hotspot da Mata Atlântica, 80 % dos fragmentos possuem menos que 50 ha, e somente cerca de 1 % da cobertura vegetal deste bioma está protegida em unidades de conservação BRANDÃO, 2010;CAMPANELLO et al, 2007b;ROZZA et al, 2007b;VITELLI et al, 2009) e políticas públicas abordam a problemática da restauração de fragmentos florestais degradados, a principal fonte de biodiversidade para os programas de restauração em paisagens antropizadas.…”