(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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Some Leptocorisa species are destructive and cause significant damage to rice throughout their range Cendana and Calora, The rice bug, Leptocorisa acuta Thunb.
Leptocorisa acuta (rice seed bug)
Hemiptera and its insecticidal control. Catling, ; EPPO, Knowledge Bank home Change location. Leptocorisa acuta has not been found in the U. Leptocorisa acuta feeds primarily on graminaceous plants such as rice, wheat, and sugarcane Hill leptocoriisa Irrigation should be managed to avoid excess humidity. Nymphs and adults use their piercing-sucking mouthparts to feed on developing rice grains.
rice seed bug (Leptocorisa acuta)
Mechanical Control In parts of India and Sri Lanka, smoking the fields by burning lleptocorisa herbs windward, and passing over the crop baskets, bags or winnows coated on the inside with sticky leptocoria, are reported to give promising results. Resistant Crop Varieties Certain coarse-grain-yielding, bearded varieties such as ‘Sathi’ ‘Soma’ and ‘Mundagakutty’ in India are resistant to attack.
Simultaneous crop maturity in all fields in an area reduces rice bug damage. Malaysia Ministry of Agriculture and Lands.
Infestation is severe in irrigated and heavy rainfall areas. Datasheet Leptocorisa acuta rice seed bug. Resistance is attributed to the fact that the panicle remains enclosed in the leaf sheath and thus offers some mechanical resistance to stylet penetration see Srivastava and Saxena, A week following oviposition, the eggs hatch, and within hours the nymphs begin feeding Corbett Taxonomic Tree Top of page Domain: The bionomics and control of Leptocorisa acuta Thunb.
Rice seed bug A preliminary report on paddy investigations. This reduces photosynthesis and, in extreme cases, can damage the vascular system of the plant. A note on the efficacy of selected insecticides against gundhi bug, Leptocorisa acuta Thunberg. Each nymphal instar looks remarkably similar to the one before it, except each successive nymph is larger than the last and wing pad enlargement occurs.
The role of this bug in the transmission of sheath rot disease has also been documented Lakshmanan et al.
Like all true bugs, aucta have piercing-sucking mouthparts that puncture the substrate they are feeding on, which can damage plant tissue and reduce grain yields.
Current Science, 45 It is thought that rice in the flowering stage is the preferred host.
Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. Asian rice bug; paddy bug; paddy fly; rice bug; rice sappers Spanish: Illustrated guide to integrated pest management in rice in tropical Asia. Heteroptera of Economic Importance.
Leptocorisa acuta, Rice earhead bug, Paddy stink bug
Straits Settlements and Malaya States Sci. Eggs are laid in batches of in rows along the midrib on the upper surface of the leaf blade. Leptocorisa acuta leptoorisa known to transmit Sarocladium oryzae and Lsptocorisa attenuatum fungithe cause of sheath rot disease.
When the bugs feed on soft or hard dough endosperm, they inject enzymes to predigest the carbohydrate. Natural mortality of leaffooted bug Hemiptera: Application of granules of carbofuran or diazinon has also been found effective. When disturbed, adults emit an unpleasant odor considered to be stronger than the odor emitted by true stink bugs Pentatomidae. Leptocorisa acuta adults are crepuscular active during the early morning and late afternoon.
Sands, ; EPPO, This is because the bug requires a wild host to feed and reproduce upon before moving into the rice field in early spring. The biology and ecology of Leptocorisa Hemiptera: