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17.12.2015 admin
One particular species of bulldog ant, the jack jumper ant, has an especially bad reputation.
Three nuisance pest species of ants doesn’t sound too bad for a continent with 1,300 different kinds of ants, but those were only the native species. Coastal brown ants hail from Africa but are now common along the east coast and south to the Sydney area. Argentine ants came from South America, but they have now decided that Australia suits them quite well and are established pests in Sydney, Melbourne, Hobart, northern Tasmania and Perth. It can be difficult to control ants, especially when they have become established in large colonies. So if you want a lovely spring show, plant your daffodils in the autumn when the nights are cool. Daffodils are lovely planted in drifts under trees where they give a lovely woodland effect.  You can even plant them in little pockets in the lawn – as long as you remember not to mow there! Daffodils are also perfect to grow in containers on your patio but make sure that they do not receive too much sun there. My only objection to these lovely flowers is that you need lots of them to make a decent show. Never be tempted to buy bulbs in sealed packets no matter how pretty the picture on the cover. Plant your daffodil bulbs about 6 inches deep in damp, rich soil that you have fortified with some home-made compost. DescriptionSuitable for digging round post holes for fencing, hanging gates, even for planting trees and shrubs.
They are thought to be relatively primitive ants and are called “bulldog” ants because of their aggressive behaviour.
These ants, noted for their iridescent blue-green sheen, are the most conspicuous of all Australian ants. These ants seem to be attracted to plastics, and they frequently infest electrical wiring and irrigation equipment. In their native environment, these ants are aggressive and provide a self-limiting control over one another.

Although they have different physical characteristics, their small size can make them difficult to identify. So the trick is to try to grow enough flowers so that you can happily pick a bunch or two to take indoors. If you want to pamper yourself buy as many bulbs as you can and indulge in the show that will surely follow. While some of these ants are common everywhere, quite a few species have been encountered by biologists less than 10 times. Despite having so many species of ants, there are really only three groups of Australian ants that are commonly encountered: bulldog ants, meat ants, and green weaver ants.
They have better vision than most other ants and vigorously defend their colonies against perceived intruders. Like bees or wasps, the ants inject venom with the sting that can cause an anaphylactic reaction in allergic individuals. The most notable and commonly encountered examples are coastal brown ants, Singapore ants, and Argentine ants. Coastal brown ants infest both indoor and outdoor areas, and they are a serious impediment to gardening. Like coastal brown ants, Singapore ants are a major agricultural nuisance, especially where crops are harvested by hand.
Getting a close enough look to identify the type of ant can, especially the case of bulldog ants, result in painful bites or stings. Unfortunately for humans, walking in a yard where they have colonized is enough to warrant a response.
Unlike their flying cousins, however, jack jumper ants can – and often do – sting multiple times in a single encounter.
Although they are quite aggressive, they do not sting and are commonly considered beneficial. Other species, such as the white-footed house ant, the pharaoh ant and the black house ant are also common pests but are found inside homes. Biologists believe the colonies are more tolerant of neighbouring colonies because they are all descended from a very limited gene pool.

Central and South America both more species of ants, while North America, Europe, northern Asia and even Africa have fewer species.
They have extremely painful bites, and an encounter with a bulldog ant is not something soon forgotten.
It is estimated that 3% of the Australian population is allergic to this venom, and these ants can be quite dangerous. They attack and eliminate colonies of other, more harmful ant species and also kill and eat invasive cane toads. They hunt and kill insects which are harmful to crops and are highly effective biological pest control agents in the Australian fruit industry. Because they are all in the same family, so to speak, they have formed immense colonies with hundreds of queen ants and millions of workers. Exterminators can quickly identify the type of ant infestation and provide a control measure effective for that particular species.
Australian species vary in length from 1 to 30 mm, and range in colour from black, brown, green, red or yellow to many combinations of these colours.
Orchards with green weaver ants produce fruit with fewer blemishes without the use of chemical pesticides.
In 2004, a colony of Argentine ants more than 100 kilometres wide was found near Melbourne.
They can be welcome neighbours in a rural setting but quite a nuisance when they colonize a lawn.
They frequently colonize ornamental trees and are quite a nuisance to workers harvesting fruits.

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