The Eurasian woodwasp, Sirex noctilio Fabricius is an important forestry quarantine pest in the world, which prefers to attack conifer. It is native to Eurasia and North Africa. However, over the last one hundred years, S. noctilio has been gradually introduced to New Zealand and Austria in...

The bark beetle Pityogenes scitus Blandford was previously recorded from China (Tibet), Nepal, India and Pakistan, and its host plants included Cedrus deodara, Pinus wallichiana, P. gerardiana, and P. roxburghii. In Beijing, it invades the unhealthy stem and branches of the lacebark pine, P....

Three new control methods for the management of wilding conifers are described: ground based basal bark herbicide application; aerial bark herbicide application using a wand; and herbicide application using aerial boom spraying. We compare the previously used methods with these new methods. A range ...

An exotic invasive species is one that occurs outside of its natural geographical limits, which adapts and reproduces, and becomes dominant and concessionaire conducted a survey of exotic invasive tree species. The highways serve as a traverse where exotic species are easily dispersed. An...

Rotoroa is an 80 ha island in the Hauraki Gulf, northeast of Auckland in New Zealand. Owned by the Salvation Army it was leased to the Rotoroa Island Trust in 2007. The Trust's goal is to develop Rotoroa for visitors to enjoy the island's natural and cultural heritage values. The Trust has...

Invasive alien species are introduced from other ecosystems and establish, producing viable descendency that spread for significant distances from the mother plants, potentially cause damage to the environment. The aim of the current study is to evaluate the first responses of the invasion process...

Invasive alien species are introduced from other ecosystems and establish, producing viable descendency that spread for significant distances from the mother plants, potentially cause damage to the environment. The aim of the current study is to evaluate the first responses of the invasion process...

Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration under parent stand after weed suppression was investigated in the area of the Training Forest Enterprise in Kostelec nad Černými lesy. The study evaluates two measurements made in a two-year interval. The parent stand, where...

Amongst the world's invasive plant species, those of the genus Pinus are widespread and conspicuous. In many parts of the world pine trees were planted for production purposes or erosion control, and are now spreading well outside the plantations, threatening biodiversity, ecosystem function, and...

Broom (Cytisus scoparius (L.) Link) is an invasive weed in many commercial radiata pine (Pinus radiata D.Don) plantations throughout New Zealand. As broom competes strongly with newly planted pine seedlings and has an abundant seed bank that persists longer than the forest rotation cycle, ongoing...