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Grasshoppers eat large quantities of foliage both as adults and during their development, and can be serious pests of arid land and prairies. Pasture, grain, forage, vegetable and other crops can be affected. Grasshoppers often bask in the sun, and thrive in warm sunny conditions, so drought stimulates an increase in grasshopper populations.
Hieroglyphus banian is a species of grasshopper in the family Acrididae. It is a pest of millets such as sorghum, pearl millet, and finger millet in India. [1] It is an annual pest and the eggs require the cycle of dry summer followed by monsoon rains to hatch. The species has an olfactory neuronal pathway remarkably similar to that of ...
Orthoptera (from Ancient Greek ὀρθός (orthós) 'straight' and πτερά (pterá) 'wings') is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā.
The green-striped grasshopper is single-brooded in the North and west of the Great Plains but is multiple-brooded in the Southeast. [4] In the single-brooded range, green-striped grasshoppers' eggs are laid early in the summer season. These eggs hatch later in the same summer. The nymphs will molt three to four times before winter.
This grasshopper eats a wide range of alpine herbs but avoids tussock grass. [ 6 ] [ 7 ] Females are larger than males [ 8 ] but their antenna have the same number of sensilla . [ 9 ] Sigaus nitidus has a variable life-cycle of two or three years, overwintering as egg, nymph or adult.
Entomophaga grylli is a fungal pathogen which infects and kills grasshoppers.It is the causal agent of one of the most widespread diseases affecting grasshoppers. This is sometimes known as summit disease because infected insects climb to the upper part of a plant and grip the tip of the stem as they die; this ensures widespread dispersal of the fungal spores. [1]
Sigaus australis is the most common alpine grasshopper found in New Zealand. [2] [3] It can be found in the southern half of the South Island above the tree line. Sigaus australis was described in 1897 by Frederick Hutton. Like all of New Zealand sub-alpine and alpine grasshoppers S. australis has a 2 or 3 years life cycle.
Melanoplus bivittatus is a relatively large species with sizes ranging from 30 to 55 mm. [3] A pair of pale yellow stripes run along the top of its body from above its eyes to the hind tip of its wings, which gives it the names two-striped grasshopper or yellow-striped grasshopper. [3]