Lexi Webster
Grasshoppers are omnivores and members of the insect order Orthoptera, which means 'straight wings'. They are closely related to locusts, and both have chewing mouthparts that leave ragged holes and chewed edges on leaves. Grasshoppers are incredibly diverse, with varying sizes, colours, patterns, and habitats. They typically lay their eggs in damp soil and are ecologically important as prey for various birds, reptiles, frogs, and mammals. Grasshoppers in Australia eat a variety of things, from grass to leaves and even the roots of many broadleaf plants, shrubs, trees, and herbaceous plants.
| Characteristics | Values |
|---|---|
| Diet | Stems, leaves, buds, roots, shrubs, trees, herbaceous plants, pollen, nectar, insects, invertebrates, grass, broadleaf plants |
| Species that cause damage to gardens | Wingless Grasshopper, Plague Locust, Spur-Throated Locust, Giant Grasshopper |
| Grasshopper species | Wingless Grasshopper, Giant Grasshopper |
| Grasshopper length | 12-18mm (males), 18mm (females) |
| Colour | Greyish brown, creamy brown, grey |
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What You'll Learn
Grasshoppers are omnivores
In Australia, grasshoppers are incredibly diverse, with varying sizes, colours, patterns, and habitat preferences. There are hundreds of grasshopper species native to the country, and they are an important part of the ecosystem as prey for birds, reptiles, frogs, and mammals. One of the most common species is the Giant Grasshopper (Valanga irregularis), found in Perth and throughout Australia from Sydney north. This species is the largest of the short-horned grasshoppers in Australia, with adults growing up to 90mm in length. They feed on a wide range of shrubs, trees, and herbaceous plants, including hibiscus, coffee, and citrus.
Grasshoppers typically lay their eggs in damp soil, and they prefer to live in forests and woodlands. While they are considered pests by some, grasshoppers are an important part of Australia's diverse ecosystem and contribute to the natural balance of the environment.
Grasshoppers are related to locusts, which are also members of the family Acrididae within the order Orthoptera. Locusts are a type of grasshopper that forms swarms, with the Australian Plague Locust (Chortoicetes terminifera) being one of the most well-known. While grasshoppers can cause damage to gardens, major attacks by grasshoppers or locusts in Australia are not common.
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They eat stems, leaves, buds, roots, and plants
Grasshoppers in Australia are omnivores and have a varied diet. They eat stems, leaves, buds, and even roots. They also consume the leaves of many broadleaf plants. Grasshoppers and locusts are closely related and have chewing mouthparts that leave distinctive ragged holes and chewed edges on leaves. They are both members of the insect order Orthoptera, known for their powerful jumping abilities and their 'singing' or stridulating.
Grasshoppers and locusts can cause severe damage to gardens and agricultural crops. They have been known to destroy plants that are grown for food. The Giant Grasshopper, for example, feeds on a wide range of shrubs, trees, and herbaceous plants, including hibiscus, coffee, and citrus. They also feed on very young coffee berries. The Australian Plague Locust, the Spur-Throated Locust, and the Migratory Locust can form swarms and cause massive damage to crops.
Grasshoppers typically lay their eggs in damp soils, and a dampland garden can provide an additional breeding habitat. They are ecologically important as prey for various birds, reptiles, frogs, and mammals. While they can be a nuisance to gardeners, grasshoppers play a role in the ecosystem and are a food source for other animals.
Grasshoppers have a preference for certain habitats and are often found in forests and woodlands. They can also be found in gardens, especially those with plenty of ground cover and smaller shrubs, which provide suitable habitats for young grasshoppers.
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They can destroy crops and plants
Grasshoppers are omnivores and can feed on stems, leaves, buds, and even roots. They are closely related to locusts, which are known to form swarms and eat everything in their path. While grasshoppers typically prefer solitary lives within the garden, they can destroy crops and plants when their community has grown in number.
Grasshoppers have chewing mouthparts that leave distinctive ragged holes and chewed edges on leaves. They feed on a wide range of shrubs, trees, and herbaceous plants, including hibiscus, coffee, and citrus. Giant grasshoppers, in particular, are known to feed on foliage and sometimes on very young coffee berries. They are the largest of the short-horned grasshoppers in Australia, with adults growing up to 90mm long.
Grasshoppers and locusts can occasionally cause severe damage to gardens and agricultural crops. They may leave a trail of destruction, although they usually don't stay for long in the same spot. The Australian Plague Locust (Chortoicetes terminifera) and the Spur-Throated Locust (Austracris guttulosa) are two locust species that can form plagues and cause massive damage to crops.
To prevent grasshoppers and locusts from damaging plants, gardeners can take practical steps such as using insecticides. Treatment for grasshoppers on ornamental plants can include products like Yates Advanced Garden Insect Killer, which should be sprayed directly and thoroughly onto plants when grasshoppers are seen. Repeat treatments may be necessary, especially in severe infestations.
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There are over 700 species in Australia
Grasshoppers are insects belonging to the order Orthoptera, which also includes locusts, crickets, and katydids. They are known for their powerful jumping abilities and their ability to produce sounds, or "stridulation", by rubbing certain body parts together. In Australia, there are over 700 species of grasshoppers and locusts in the family Acrididae, with more than 500 species of grasshoppers alone.
The grasshopper species found in Australia vary greatly. The common green Vegetable Grasshopper (*Atractomorpha similis*) is found in the eastern coastal areas, while the khaki-coloured Hedge or Giant Grasshopper (*Valanga irregularis*), Australia's largest grasshopper species, is found north of Sydney in subtropical and tropical regions. The Giant Hedge Grasshopper is a female-dominated species, with females being larger and having a more pinkish colour, while males are smaller and more grey-toned.
Grasshoppers are omnivores and feed on plant leaves, stems, shoots, buds, and even roots. They are considered pests when they appear in large numbers and can destroy crops and ornamental plants. However, they are also a food source for other animals such as sugar gliders, lizards, snakes, assassin bugs, frogs, ants, and worms.
Grasshoppers are solitary creatures, but when their numbers grow, they can become a swarm and cause damage to plants and crops. Locusts, a type of grasshopper, are known for forming swarms and eating everything in their path. The Australian Plague Locust (*Chortoicetes terminifera*) and the Spur-Throated Locust (*Austracris guttulosa*) are two examples of locust species that can cause significant damage to agricultural crops in Australia.
Grasshoppers have developed various strategies to survive and avoid predators. They use camouflage to blend into their surroundings and escape detection. Additionally, they are known for their strong, chicken drumstick-shaped legs that allow them to make enormous leaps, helping them escape from predators.
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The Giant Grasshopper is the largest in Australia
Grasshoppers are omnivores and are known to eat stems, leaves, buds, and even roots. They are considered pests as they can destroy plants that are grown for food. Grasshoppers and locusts are closely related and both have chewing mouthparts that leave ragged holes and chewed edges on leaves. Locusts are a type of grasshopper that forms swarms, and while they are not common in Australia, they eat everything in their path.
The Giant Grasshopper (Valanga irregularis) is Australia's biggest grasshopper species. Females are 60 to 75 mm long, while males are 45 to 55 mm long. They are usually creamy brown to grey with mottling expressed as small dark spots. The top of the head and wings are level, with a slight ridge along the top centre of the thorax. The wings are smoky grey, with spotty and mottled wing covers. The rear tibia is the same colour as the rest of the leg, but the tibial spines are orange to red with black tips. This feature distinguishes the Giant Grasshopper from the Austracris guttulosa, which has white spines with black tips.
The Giant Grasshopper is found in northern Australia and is one of the grasshopper species most likely to cause problems in gardens, along with the Wingless Grasshopper of south-eastern and south-west Western Australia, and the Plague Locust and Spur-Throated Locust of inland Australia.
Grasshoppers are insects with enlarged rear legs adapted for jumping. They are known for their powerful jumping abilities and their 'singing', which is technically known as stridulating. They produce sounds by rubbing their forewings together, or by rubbing their legs against their body or wings. Grasshoppers and locusts communicate by rubbing their hind legs together or snapping their wings together in flight, creating a buzzing or crackling sound.
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Frequently asked questions
Grasshoppers in Australia eat a variety of things, including stems, leaves, buds, roots, and broadleaf plants. Some grasshoppers, such as the Giant Grasshopper, also eat shrubs, trees, and herbaceous plants like hibiscus, coffee, and citrus.
Grasshoppers and locusts are closely related, but locusts are a type of grasshopper that forms swarms. Locust swarms eat everything in their path and can cause severe damage to gardens and agricultural crops. Grasshoppers, on the other hand, are typically solitary and do not cause the same level of destruction.
Yes, the Giant Grasshopper (Valanga irregularis) is native to Australia and is the country's largest grasshopper, growing up to 90mm long. It is found in Perth and throughout Australia from Sydney north.
Grasshoppers can be treated with insecticides like Yates Advanced Garden Insect Killer. Spray plants directly when grasshoppers are seen, and repeat treatments as necessary, especially for severe infestations.
