Chilo auricilius | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Family: | Crambidae |
Genus: | Chilo |
Species: | C. auricilius |
Binomial name | |
Chilo auricilius Dudgeon, 1905 | |
Synonyms | |
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Chilo auricilius, the gold-fringed rice stemborer [1] or terai borer, is a moth in the family Crambidae. It was described by Gerald C. Dudgeon in 1905. It is found in India, Taiwan, [2] Bhutan and Sri Lanka, as well as on Sulawesi, Borneo, Sangir Island and the Moluccas. [3] The larvae bore into and feed on the stems of various grass family plants including sugarcane, rice and maize.
The forewings of the adult are rather variable, being yellowish or brownish with silvery dots, either scattered or arranged in two transverse bands. The fringe round the margin of the wings is golden yellow. The forewing length is 8 to 13 millimetres (0.3 to 0.5 in) and the width 3 to 4 millimetres (0.12 to 0.16 in). The hindwings are pale brown. [4]
The larvae feed on several members of the grass family Poaceae; these include rice (Oryza sativa), sugarcane (Saccharum officinarum), sorghum ( Sorghum bicolor ) and maize (Zea mays). On young sugarcane, the larvae kill the leaves and cause the shoots to die. In older cane there may be no noticeable symptoms until the leaf sheaths are stripped off, when the gallery entrances become apparent. On rice, the symptoms are similar to those caused by other stem borers, with death of the central tissue and failure of the flowerhead to develop properly, with the emerging panicles whitish and empty. [5]
A naturally occurring parasitoid fly, Sturmiopsis inferens , has been used to control this stem borer. It can be raised in the laboratory and released where needed. It has been found that the fly is active for most of the year; from March to June it mainly targets the sugarcane shoot borer (Chilo infuscatellus) and the pink borer (Sesamia inferens). Subsequently, from July to October, it targets the Gurdaspur borer (Bissetia steniellus), and between November and January, it mainly attacks the gold-fringed rice stemborer. [6]
Crambidae comprises the grass moth family of lepidopterans. They are variable in appearance, with the nominal subfamily Crambinae taking up closely folded postures on grass stems where they are inconspicuous, while other subfamilies include brightly coloured and patterned insects that rest in wing-spread attitudes.
Push–pull technology is an intercropping strategy for controlling agricultural pests by using repellent "push" plants and trap "pull" plants. For example, cereal crops like maize or sorghum are often infested by stem borers. Grasses planted around the perimeter of the crop attract and trap the pests, whereas other plants, like Desmodium, planted between the rows of maize, repel the pests and control the parasitic plant Striga. Push–pull technology was developed at the International Centre of Insect Physiology and Ecology (ICIPE) in Kenya in collaboration with Rothamsted Research, UK. and national partners. This technology has been taught to smallholder farmers through collaborations with universities, NGOs and national research organizations.
Helicoverpa armigera is a species of Lepidoptera in the family Noctuidae. It is known as the cotton bollworm, corn earworm, Old World (African) bollworm, or scarce bordered straw. The larvae feed on a wide range of plants, including many important cultivated crops. It is a major pest in cotton and one of the most polyphagous and cosmopolitan pest species. It should not be confused with the similarly named larva of the related species Helicoverpa zea.
Chilo suppressalis, the Asiatic rice borer or striped rice stemborer, is a moth of the family Crambidae. It is a widespread species, known from Iran, India, Sri Lanka, China, eastern Asia, Japan, Taiwan, Malaysia to the Pacific.
Busseola fusca is a species of moth that is also known as the maize stalk borer. It is known from Ethiopia.
Maliarpha separatella, the African white stemborer, is a species of moth of the family Pyralidae. A worldwide paddy pest, it is found throughout African countries of Cameroon, Mali, Réunion, Madagascar, South Africa, and many Asian paddy cultivating countries such as Myanmar, India, and Sri Lanka. Though they are reported from China and Papua New Guinea, they are also known to attack sugarcane.
Eldana is a genus of moths of the family Pyralidae containing only one species, the African sugar-cane borer, which is commonly found in Equatorial Guinea, Ghana, Mozambique, Sierra Leone and South Africa. Adults have pale brown forewings with two small spots in the centre and light brown hindwings, and they have a wingspan of 35mm. This species is particularly relevant to humans because the larvae are a pest of the Saccharum species as well as several grain crops such as sorghum and maize. Other recorded host plants are cassava, rice and Cyperus species. When attacking these crops, E. saccharina bores into the stems of their host plant, causing severe damage to the crop. This behavior is the origin of the E. saccharrina's common name, the African sugar-cane borer. The African sugar-cane borer is a resilient pest, as it can survive crop burnings. Other methods such as intercropping and parasitic wasps have been employed to prevent further damage to crops.
Sesamia inferens, the Asiatic pink stem borer, gramineous stem borer, pink borer, pink rice borer, pink rice stem borer, pink stem borer, purple borer, purple stem borer or purplish stem borer, is a moth of the family Noctuidae. The species was first described by Francis Walker in 1856. It is found from Pakistan, India, Sri Lanka, Myanmar to Japan and the Solomon Islands. A polyphagous species, it is a major pest in many crops worldwide.
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.
Chilo infuscatellus, the yellow top borer or sugarcane shoot borer, is a moth in the family Crambidae. It was described by the Dutch entomologist Samuel Constantinus Snellen van Vollenhoven in 1890. It is found in India, Myanmar, Tajikistan, Afghanistan, Korea, Taiwan, Malaysia, the Philippines and on Java and Timor.
Chilo partellus, the spotted stalk borer or spotted stem borer, is a moth in the family Crambidae. It was described by Charles Swinhoe in 1885. It is found in India, Pakistan, Iran, Ethiopia, Lesotho, Madagascar, Malawi, South Africa, Sudan, Tanzania, Uganda and on Mayotte.
Bissetia steniellus is a moth in the family Crambidae. It was first described by the British entomologist George Hampson in 1899. It is found in India and Vietnam where it is commonly known as the Gurdaspur borer because the larvae bore their way into and feed on the stems of sugarcane.
Scirpophaga excerptalis, the white top borer or sugarcane top borer, is a moth in the family Crambidae. It was described by Francis Walker in 1863. It is found in southern Asia from the Indian Subcontinent in the west to southern China in the east, south to New Guinea, possibly Australia and the Solomon Islands.
Scirpophaga nivella is a moth in the family Crambidae. It was described by Johan Christian Fabricius in 1794. It is found in southern Asia from the Indian Subcontinent in the west to southern China in the east, south to New Guinea and Australia, including New Caledonia and Fiji. Some sources have affixed the common name "sugarcane top borer" to it, despite it not being found in sugarcane, because they are confused with the species Scirpophaga excerptalis, which is an actual borer in the tops of sugarcane. Another newer common name that has been invented for these moths is "white rice borer".
A stemborer is any insect larva, or arthropod, that bores into plant stems. However the term most frequently refers among the Coleoptera to the larva of certain longhorn beetles such as Dorysthenes buqueti and those of the genus Oberea, and among the Lepidoptera to certain moths of the Crambidae, Castniidae, Gelechiidae, Nolidae, and Pyralidae families.
Sturmiopsis inferens is a species of fly in the family Tachinidae. It is native to Asia and is a parasitoid of various moth species whose larvae feed inside the stems of sugarcane, rice and other large grasses, including the Gurdaspur borer and the sugarcane shoot borer.
Sesamia calamistis, the African pink stem borer, is a moth of the family Noctuidae.