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Prickly pears (genus Opuntia) include a number of plant species that were introduced and have become invasive in Australia. Prickly pears (mostly Opuntia stricta) were imported into Australia in the First Fleet as hosts of cochineal insects, used in the dye industry. [1] Many of these, especially the tiger pear, quickly became widespread ...
Opuntia maxima Mill. Opuntia paraguayensis K.Schum. Opuntia ficus-indica, the Indian fig opuntia, fig opuntia, or prickly pear, is a species of cactus that has long been a domesticated crop plant grown in agricultural economies throughout arid and semiarid parts of the world. [3] O. ficus-indica is the most widespread and most commercially ...
Opuntia, commonly called the prickly pear cactus, is a genus of flowering plants in the cactus family Cactaceae, many known for their flavorful fruit and showy flowers. [1] Cacti are well-adapted to aridity; however, they are still vulnerable to alterations in precipitation and temperature driven by climate change. [ 2 ]
Opuntia stricta is a species of large cactus that is endemic to the subtropical and tropical coastal areas of the Americas, especially around the Caribbean. [2] Common names include erect prickly pear and nopal estricto (Spanish). [4] The first description as Cactus strictus was published in 1803 by Adrian Hardy Haworth.
From the Report of the Prickly-pear Travelling Commission. In 1912, Johnston was appointed chairman for a committee, the Prickly-Pear Travelling Commission, formed to investigate control measures for the prickly pear cactus. In 1788, Governor Philip and the early colonists are credited with the introduction of the prickly pear to Australia. The ...
Dactylopius opuntiae can also have a strong negative impact on both the production of prickly pear fruit for fresh consumption and on cladodes as fodder for livestock feed. The cochineal species tends to form variably sized colonies on cladodes, which in some cases are totally covered by the insect.
Cactoblastis cactorum was first introduced to Australia in 1925 from Argentina, where it was successfully used as a biological control agent for Opuntia cacti. [10] Due to this success, it was subsequently introduced into other countries, including South Africa in 1933 and the Caribbean in the 1950s.
By 1862 prickly pear was growing in the Chinchilla district and spread rapidly in areas where land holdings were extensive and population relatively low. [1] Prickly pear was declared a noxious weed in Queensland in 1893. By 1900 approximately 10,000,000 acres (4,000,000 ha) were affected by prickly pear; an area which had extended to an ...