(Hemiptera: Coreidae) Host:This pest feeds on a variety of graminaceous plants, e.g. rice, wheat, sugarcane, maize, millets, bajra etc. Flowering rice is the. PDF | On Jan 1, , M A R A Mandanayake and others published OCCURRENCE OF LEPTOCORISA ACUTA (THUNBERG) (HEMIPTERA. Leptocorisa acuta (Thunberg). Taxonomic position. Insecta: Hemiptera: Heteroptera: Alydidae. Common names. Rice earhead bug, paddy bug. Habitat / Crop(s).

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See Srivastava and Saxena These bugs prefer to feed when the host plants are young, at a time when the starches within the grains are not yet fully formed.

Leptocorisa acuta (rice seed bug)

EU pesticides database www. Rice seed bug Leptocorisa acuta Thunberg can be found on many crop plants in the family Poaceae grassesespecially rice, and is a reported pest of economic significance in rice-producing countries like India, Australia, and China Schaefer and Panizzi This reduces photosynthesis and, in extreme cases, can damage the vascular system of the plant.

Female can lay eggs in its lifetime. Although they vary in size, the five nymphal instars are not lrptocorisa distinguished from one another because of their similarity in appearance. Like most websites we use cookies. Journal of Agriculture and Urban Entomology This is to ensure that we give you the best experience possible.

Rice bug, Leptocorisa varicornis and allied species. Continuing to use www. An adult rice bug, Leptocorisa acuta Thunburg. Journal of the American Science Association, 13 Sands, ; EPPO, Nymphs are greenish, slender and similar to the adults in appearance and sucking habit. In severe cases, the infected plant may not produce rice grains.


Leptocorisa acuta Thunberg Insecta: When they are freshly deposited, eggs are a cream-yellow color, turning to a reddish-brown after approximately one week. Journal of the Bombay Natural History Society, 74 3: Description Back to Top Adults: Alternate host plants and hibernation of the rice bug Leptocorisa acuta in North Bengal. The use of late-maturing cultivars can reduce feeding damage from the rice bug, as their activity corresponds with warm weather and the flowering stage of host grasses.

Corbett indicated that nymphs and adults may be attracted to trap crops of grasses or early-planted rice and the insects can be collected before the flowering of the main crop. Leptocorisa acuta adults are long mm and slender mm wide. Resistance to benzene hexachloride of rice bug, Leptocorisa varicornis F. They prefer rice at the milk stage but also feed on soft and hard dough rice grains.

Consequently, the plant reacts to leptocoria the tissue and seal the wound. The Leptocorisinae Heteroptera-Alydidae of the world. This is because the bug requires a wild host to feed and reproduce upon before moving into the rice field in early spring.

Leptocorisa oratoria – Wikipedia

The use of scented aquatic plants such Ceratophyllum demersum, C. Srivastava and Saxena recommend clean cultivation of bunds around paddy fields, and periodic burning of grass lepfocorisa on the bunds and in fallow fields, to prevent breeding of the rice bug and reduce the numbers infesting the next crop.


Datasheet Leptocorisa acuta rice seed bug. These bugs have globular, protruding eyes in addition to small ocelli simple eyeswhich are difficult to see. International Rice Research Newsletter, 6 1 Coreidae-Hemipteraa pest of Paddy Crop in India. The role of this bug in the transmission of sheath rot disease has also been documented Lakshmanan et al.

Leptocorisa acuta, Rice earhead bug, Paddy stink bug

Taxonomic Tree Top of page Domain: Insect pests of rice in the Philippines. Leptocorisa acuta are crepuscular, active during the early morning and late afternoon.

Title Adult genitalia – SEM. Generate a print friendly version containing only the sections you need. Irrigation should be managed to avoid excess humidity. It is believed that after the rice is harvested, the bugs overwinter in wild grasses or other grass crops. Like all true bugs, they have piercing-sucking mouthparts that puncture the substrate they are feeding on, which can damage plant tissue and reduce grain yields. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

The distribution in this summary table is based on all the information available. The fourth antennal segment is curved and longer than the third segment Corbett Puncture holes also serve as points of entry for several plant pathogens, such as the fungus that causes sheath rot disease.