The wingspan of the male is 18–22 mm and the female is 34 mm.[2] Adult males are smaller than the females. Males are brownish ochreous. Forewings irrorated (sprinkled) with dark scales and with the veins slightly streaked with fuscous. A black spot found at lower angle of cell. There is an oblique fuscous line runs from apex to vein 2. A marginal black specks series can be seen. Hindwings ochreous white. Female fuscous brown with pale fuscous hindwings.[3]
Ecologyedit
The larvae feed on Oryza sativa. It is considered as a major rice pest throughout India, Sri Lanka as well as in various parts of Nepal, and it devastates harvests annually. They bore the stem of their host plant. Full-grown larvae are pale yellow to yellowish green with a brown head and reach a length of 20 mm. Pupation takes place in a white silk cocoon.
Damageedit
After hatching, early instars bore into the leaf sheath and causing longitudinal yellowish-white patches as a result of feeding. Then it invades the stem of the rice plant and stays in the pith to feed on the inner surface of the stem wall. These are not externally visual as symptoms. Severe feeding causes a deep circular cut through the parenchyma tissue showing deadhearts at the vegetative stages and whiteheads at the reproductive stages.[4]
Controledit
Due to heavy damage to rice throughout the world, many controlling measures are underway. Chemical, physical, and biological controls and many traditional methods are used to control the pest at any stage of its life cycle. Numerous pest resistant paddy varieties have been genetically modified and introduced in to the fields by the local governments. In biological control, egg parasitism is high and widespread. Species of the three genera Telenomus, Tetrastichus and Trichogramma are greatly effective against eggs, larva and adult moths.[4]
^Savela, Markku. "Scirpophaga incertulas (Walker, 1863)". Lepidoptera and Some Other Life Forms. Retrieved July 23, 2018.
^cycle-of-yellow-stem-borer-scirpophaga-incertulas-wlk Life cycle of Yellow stem borer Scirpophaga incertulas Wlk
^Hampson, G. F. (1896). The Fauna of British India, Including Ceylon and Burma. Vol. Moths Volume IV. Taylor and Francis – via Biodiversity Heritage Library.
^Sarma AK (2006) Efficacy of Trichogramma japonicum Ashmead against yellow stem borer, Scirpophaga incertulas walk on rice in Nagaland. Journal of Applied Zoological Researches 17(2): 196-200. CABI abstract
External linksedit
Wikimedia Commons has media related to Scirpophaga incertulas.
Wikispecies has information related to Scirpophaga incertulas.
Studies on the ecology of the yellow stem borer, Scirpophaga incertulas (Walker) (Pyralidae), in deepwater rice in Bangladesh
Life cycle of Yellow stem borer Scirpophaga incertulas
Pheromones and Semiochemicals of Scirpophaga incertulas
The impact of yellow stem-borer, Scirpophaga incertulas (Walker) (Lepidoptera: Pyralidae), on deepwater rice, with special reference to Bangladesh
Rice crop stage susceptibility to the rice yellow stemborer Scirpophaga incertulas
Advances in Pest and Disease Management of Rice in Sri Lanka
Egg parasites of Scirpophaga incertulas (Walker) in Sri Lanka
April 08, 2024
scirpophaga, incertulas, yellow, stem, borer, rice, yellow, stem, borer, species, moth, family, crambidae, described, francis, walker, 1863, found, afghanistan, nepal, north, eastern, india, lanka, bangladesh, myanmar, vietnam, thailand, malaysia, singapore, s. Scirpophaga incertulas the yellow stem borer or rice yellow stem borer is a species of moth of the family Crambidae It was described by Francis Walker in 1863 It is found in Afghanistan Nepal north eastern India Sri Lanka Bangladesh Myanmar Vietnam Thailand Malaysia Singapore Sumatra Java Borneo Sumba Sulawesi the Philippines Taiwan China and Japan 1 Yellow stem borerScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ArthropodaClass InsectaOrder LepidopteraSuperfamily PyraloideaFamily CrambidaeSubfamily SchoenobiinaeGenus ScirpophagaSpecies S incertulasBinomial nameScirpophaga incertulas Walker 1863 SynonymsChilo incertulas Walker 1863 Chilo incertellus Walker 1917 Catagela admotella Walker 1863 Schoenobius punctellus Zeller 1863 Schoenobius minutellus Zeller 1863 Tipanaea bipunctifera Walker 1863 Chilo gratiosellus Walker 1864 Schoenobius bipunctifer ab quadripunctellifera Strand 1918Scirpophaga incertulas rice yellow stem borer LarvaContents 1 Description 2 Ecology 3 Damage 4 Control 5 References 6 External linksDescription editThe wingspan of the male is 18 22 mm and the female is 34 mm 2 Adult males are smaller than the females Males are brownish ochreous Forewings irrorated sprinkled with dark scales and with the veins slightly streaked with fuscous A black spot found at lower angle of cell There is an oblique fuscous line runs from apex to vein 2 A marginal black specks series can be seen Hindwings ochreous white Female fuscous brown with pale fuscous hindwings 3 Ecology editThe larvae feed on Oryza sativa It is considered as a major rice pest throughout India Sri Lanka as well as in various parts of Nepal and it devastates harvests annually They bore the stem of their host plant Full grown larvae are pale yellow to yellowish green with a brown head and reach a length of 20 mm Pupation takes place in a white silk cocoon Damage editAfter hatching early instars bore into the leaf sheath and causing longitudinal yellowish white patches as a result of feeding Then it invades the stem of the rice plant and stays in the pith to feed on the inner surface of the stem wall These are not externally visual as symptoms Severe feeding causes a deep circular cut through the parenchyma tissue showing deadhearts at the vegetative stages and whiteheads at the reproductive stages 4 Control editDue to heavy damage to rice throughout the world many controlling measures are underway Chemical physical and biological controls and many traditional methods are used to control the pest at any stage of its life cycle Numerous pest resistant paddy varieties have been genetically modified and introduced in to the fields by the local governments In biological control egg parasitism is high and widespread Species of the three genera Telenomus Tetrastichus and Trichogramma are greatly effective against eggs larva and adult moths 4 Conocephalus longipennis a bush cricket is known to consume moth eggs Other than insect parasitoids fungi bacteria viruses and mermithid nematodes are also used for Integrated Pest Management IPM 4 Split release of Trichogramma japonicum improved control in Nagaland India 5 Applications of Chlorantraniliprole at 40 g a i ha was found to be efficacious against S incertulas citation needed References edit Savela Markku Scirpophaga incertulas Walker 1863 Lepidoptera and Some Other Life Forms Retrieved July 23 2018 cycle of yellow stem borer scirpophaga incertulas wlk Life cycle of Yellow stem borer Scirpophaga incertulas Wlk Hampson G F 1896 The Fauna of British India Including Ceylon and Burma Vol Moths Volume IV Taylor and Francis via Biodiversity Heritage Library a b c Yellow stem borer Scirpophaga incertulas Plantwise Technical Factsheet Retrieved 26 October 2016 Sarma AK 2006 Efficacy of Trichogramma japonicum Ashmead against yellow stem borer Scirpophaga incertulas walk on rice in Nagaland Journal of Applied Zoological Researches 17 2 196 200 CABI abstractExternal links edit nbsp Wikimedia Commons has media related to Scirpophaga incertulas nbsp Wikispecies has information related to Scirpophaga incertulas Studies on the ecology of the yellow stem borer Scirpophaga incertulas Walker Pyralidae in deepwater rice in Bangladesh Life cycle of Yellow stem borer Scirpophaga incertulas Rice Yellow stem borer Scirpophaga incertulas Walker Pheromones and Semiochemicals of Scirpophaga incertulas The impact of yellow stem borer Scirpophaga incertulas Walker Lepidoptera Pyralidae on deepwater rice with special reference to Bangladesh Rice crop stage susceptibility to the rice yellow stemborer Scirpophaga incertulas Advances in Pest and Disease Management of Rice in Sri Lanka Egg parasites of Scirpophaga incertulas Walker in Sri Lanka Retrieved from https en wikipedia org w index php title Scirpophaga incertulas amp oldid 1217858633, wikipedia, wiki, book, books, library,
