Table of content
- Introduction of the Insect
- Classification
- Distribution and Status
- Identification
- Problems with Identical signs
- Habit and Habitat
- Life cycle (Bionomics)
- Damage
- Common signs and symptoms of infestation
- Symptoms of damage
- Why is it important?
- Management
- Cultural practices
- Biological control
- Chemical treatment
- Restrictions
- Genome sequences
- Published research.
- References
Long horned grasshopper
Introduction of the Insect
Long-horned grasshopper, which is also known as katydids or bush crickets. These insects are characterized by their long antennae and, in some species, exceptionally long hind legs.
Colors vary among species and can include shades of green, brown, or even mimicry of the coloration of leaves or bark.
English name Long horned grasshopper
Bangla name লম্বাশুড় উড়চুংগা
Scientific name Euscyrtrus concinnus
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Suborder: Ensifera
Superfamily: Grylloidea
Family: Gryllidae
Subfamily: Euscyrtinae
Genus: Euscyrtus
Long-horned grasshoppers are found worldwide, inhabiting diverse ecosystems from tropical rainforests to temperate grasslands.
Global Distribution: China, Indonesia: Java; Maluku, Malaysia: Selangor, Myanmar, North Australia, Philippines, Singapore, Sri Lanka, Vietnam
- Eggs:
Appearance: Long-horned grasshopper eggs are typically laid in clusters and may resemble seeds or small pods.
Attachment: Eggs are often attached to vegetation or structures near the ground.
Overwintering: Many species overwinter in the egg stage, and the eggs provide protection from environmental conditions.
- Nymphs (Larvae):
Miniature Adults: Nymphs resemble miniature versions of the adult grasshoppers but lack fully developed wings.
Antennae: Nymphs have long antennae, a distinctive feature of the Tettigoniidae family.
Molting: They undergo multiple molting stages (instars) as they grow, shedding their exoskeletons.
Coloration: Nymphs may exhibit similar coloration to adults but can sometimes have distinct patterns or markings.
- Adults:
Antennae: Long and slender antennae are a prominent feature of adult long-horned grasshoppers.
Wings: Depending on the species, adults may have fully developed wings, reduced wings, or be flightless.
Hind Legs: Long hind legs adapted for jumping are characteristic of the Tettigoniidae family.
Coloration: Colors can vary widely, including shades of green, brown, or mimicry of the environment.
Stridulation: Many male long-horned grasshoppers produce sounds through stridulation (rubbing body parts together) for communication.
Mimicry of the coloration of leaves or bark.
Different species within the family may exhibit preferences for specific habitats, such as forests, grasslands, shrubbery, and urban areas. Again, can be found in various biotic zones, ranging from lowlands to high elevations.
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Long-horned grasshoppers feed on leaves, and heavy infestations can lead to defoliation of plants. Loss of foliage can affect the plant’s ability to photosynthesize and produce energy, impacting growth and yield. Agricultural crops, including grains, vegetables, and forage plants, can be vulnerable to grasshopper feeding.
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Presence of irregular, chewed edges on leaves and foliage, with missing portions.
Leaves may exhibit notches or semi-circular patterns along the edges due to grasshopper feeding.
Feeding on stems and plant structures, leading to weakened structural integrity.
species may show more damage than others, indicating a preference by the grasshoppers.
Stunted growth and reduced overall vigor in plants, especially noticeable in young or newly established vegetation.
Grasshopper feeding can result in wilting and drooping of plants due to the loss of vital plant fluids.
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Crop rotation, early planting, and habitat management can help reduce grasshopper populations.
Crop rotation, early planting, and habitat management can help reduce grasshopper populations.
Encouraging natural predators, such as birds and beneficial insects, contributes to natural pest control.
In severe infestations, insecticides may be used, following recommended guidelines to minimize environmental impact.
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