Use either sprays of lambda-cyhalothrin or one containing both permethrin and pirimiphos-methyl. Descriptions Of Some Weevils Reared From Cotton In Peru By dopeb | 06.11.2020 | 550550 Family: Malvaceae. Infestations of crops come from eggs and larvae remaining in fallow land before it is cleared for cultivation, or from adults migrating from nearby weeds. They are generally divided into two major divisions, the Orthoceri or primitive weevils, and the Gonatoceri or true weevils (Curculionidae). RESISTANT VARIETIESNo varieties are known to be resistant among the crops that are hosts of grey weevils; however, spring onion, carrot and asparagus are rarely damaged, and cabbage suffers very minor damage. In Missouri, the eradication started in 2001 and lasted seven years. The physical appearance of the weevil is based on the species. Other weevils are used for biological control of invasive plants. Myllocerus undecimpustulatus undatus Marshall, the Sri Lankan weevil, is a plant pest with a wide range of hosts. The elbow occurs at the end of the scape (first antennal segment) in true weevils, and the scape is usually much longer than the other antennal segments. The adults do most damage (Photos 1&2). They are up to 13 mm long, are legless and, have a grey-white body. Weed around the crops as well as within them. The grain or wheat weevil (Sitophilus granarius) damages stored grain, as does the maize weevil (Sitophilus zeamais) among others. Preferred Scientific Name. (Note, early morning spraying during the peak flowering period of a crop should be restricted as pollinators are also commonly active at this time. Beetle Families by Common Names (see also beetle families by scientific names) Primitive Carrion Beetles: Trout-stream Beetles: Anamorphid Beetles: Antlike Flower Beetles: Fungus Weevils: Soft-bodied Plant Beetles: Leaf Rolling Weevils: Bostrichid Beetles: Dry Bark Beetles: Straight-snouted Weevils: Metallic Wood-boring Beetles: Deporaus marginatus (Pascoe, 1883) Preferred Common Name. Therefore, apply in the morning (before 10 am) or mid-afternoon as beetles are on plants at this time. (2010) Host use and crop impacts of Oribius Marshall species (Coleoptera: Curculionidae) in Eastern Highlands Province, Papua New Guinea. Weevils are beetles belonging to the superfamily Curculionoidea, known for their elongated snouts. This weevil spread from Sri Lanka into India and then Pakistan where many subspecies of Myllocerus undecimpustulatus Faust are considered pests of more than 20 crops. Nanophyini are primitive weevils (with very long trochanters), but have long scapes and geniculate antennae. Oribius inimicus and Oribius destructor are the two most common and damaging grey weevils of crops in the highlands of … The larval stage of Diaprepes root weevils are a serious concern because these pests can cause extensive damage to fruit trees. Scientific Classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Coleoptera Family: Curculionidae Subfamily: Curculioninae Tribe: Anthonomini Genus: Anthonomus Species: A. Grandis Binomial name:Anthonomus Grandis The Boll weevil beetle is scientifically named Anthonomus Grandis, and it feeds on flowers and cotton buds. Look for the grey to dark brown weevils, 4-7 mm long, in the canopy of crops often on the top of leaves. ). Most weevils have long, distinctly elbowed antennae that may fold into special grooves on the snout. Some exceptions occur. Photo 7 Thickhead, Crassocephalum crepidioides. Exclusion trials in Papua New Guinea have shown the impact of the weevils on avocado, capsicum and strawberry by increasing marketable fruit by over 200%, even through they only kept out half the number of weevils compared to unprotected controls. Identification Adult weevils are less than 7 mm long and pale green in colour. Use non-preferred plants, such as spring onion, carrot and asparagus, as intercrops and border plants. ", "The weevil fauna preserved in Burmese amber—snapshot of a unique, extinct lineage (Coleoptera: Curculionoidea)", "Sexual dimorphism in head structures of the weevil, Biological Journal of the Linnean Society, List of subgroups of the order Coleoptera, https://en.wikipedia.org/w/index.php?title=Weevil&oldid=992043798, Short description is different from Wikidata, Articles needing additional references from August 2018, All articles needing additional references, Creative Commons Attribution-ShareAlike License. Grey weevils do not fly, but they are highly mobile and quickly re-infest crops where short-term insecticides have been used. Further work resulted in the elevation of Cimberididae to family from placement as a Nemonychidae subfamily in 2017 and the recognition of the Cretaceous age family Mesophyletidae in 2018 from Burmese amber. Boll weevil, ( Anthonomus grandis ), beetle of the insect family Curculionidae (order Coleoptera ), a cotton pest in North America. The lifespan depends on the species and habitat in which it lives. Adult whitefringed weevils are 10-13 mm long, slate-grey with a distinctive white strip on each side of the wing covers. Another example of extreme dimorphism in weevils is that of the New Zealand giraffe weevil, males measure up to 90 mm, and females 50 mm, although there is an extreme range of body sizes in both sexes. Scientific Name Haritalodes derogata (previously Sylepta derogata). Alternative Title: Anthonomus grandis. Grey weevil, Oribius species damage to taro. Marginal notching - off of leaves Grass hopper Crytocanthacris ranacea . Similar effects occur on apple trees. Advanced. Damage has been reported on important crops, including avocado (shot-hole of leaves, and scaring of fruit), capsicum (fruit damage), citrus (destruction of leaves, consumption of flower buds, and surface scaring of fruit), Irish potato (leaf and root damage leading to yield reduction), and strawberry (foliage and fruit destroyed). Notice the chewed leaf stalks, and downard bending of the leaves. Photo 7. The mouth of the weevil lies at the end of the snout. Weevils usually have a dark colored body that ranges from brown to black. Cotton or weevils . Weevil Scientific Name: Curculionoidea The scientific name of the weevil is Curculionoidea. Flour Weevil—Wherever flour is present, the beetle known as the flour weevil follows. Stem weevil Three specimens were id… Do not plant crops susceptible to grey weevils next to older weevil-infested crops, otherwise the weevils will quickly infest the new plantings, and the damage will be greater or more insecticides will be needed to bring the infestation under control. TNAU Agritech Portal :: Crop Protection. Eugnamptus marginatus Pascoe, 1883; International Common Names. As the cotton plant forms buds, the Boll Weevil devours the … This can be as big as their own body. Oribius inimicus and Oribius destructor are the two most common and damaging grey weevils of crops in the highlands of Papua New Guinea. AUTHOR Grahame Jackson Information from Wesis P, et al. For citrus, the destruction of new leaves, green shoots and soft bark, leads to branch die-back, and neglected orange trees are killed. The adult which is the over wintering stage is gray-brown in color measuring between about 1/5 of an inch, with a short, blunt shaped beak and has 3 light but inconspicuous stripes that run lengthwise from the thorax to the wing covers. in 2002,[6] and was achieved using phylogenetic analyses. 4. The cotton boll weevil, Anthonomus grandis grandis, was the most important pest of cotton in much of America’s Cotton Belt. A weevil's rostrum, or elongated snout, hosts chewing mouthparts instead of the piercing mouthparts that proboscis-possessing insects are known for. Some other beetles, although not closely related, bear the name "weevil", such as the biscuit weevil (Stegobium paniceum), which belongs to the family Ptinidae. Note that there are more than 50 species, of which seven are crop pests. About 97,000 species of weevils are known. Scientific Name Polydrusus impressifrons. Thought to be native to Central Mexico , [1] it migrated into the United States from Mexico in the late 19th century and had infested all U.S. cotton-growing areas by the 1920s, devastating the industry and the people working in the American South. This article is about the beetles. Project CP/2001/032. Because so many species exist in such diversity, the higher classification of weevils is in a state of flux. Fortunately, it was eradicated in the United States by a U.S. Department of Agriculture (USDA) program in cooperation with state agencies and cotton farmers. "Thickhead", Crassocephalum crepidioides, a common host of grey weevils, Oribius species. ", "Weevils on Stored Grain (Department of Entomology)", Memoirs of the Entomological Society of Washington, "Molecular and morphological phylogenetics of weevils (Coleoptera, Curculionidae): do niche shifts accompany diversification? grey weevil; Taxonomic Tree Top of page. Apple iOS Edition, http://weeds.brisbane.qld.gov.au/weeds/thickhead. Between these times they remain within the canopy, move towards the base of the plant or, possibly, move off the plant. African bollworm caterpillar is initially pale green, sometimes with black dots, and a pattern of thin dark lines running along the body, the lines being darker around the second and third segments. Photo 5. English: mango funnel-rolling leaf weevil; mango leaf weevil; EPPO code. Symptoms of damage. Bright, Donald E.; Bouchard, Patrice (2008). Their large black jaws are clearly visible but the yellow brown head is generally not seen as it is retracted into the body. Avoid planting in land where previous crops were infested with grey weevils as it is likely eggs and larvae remain in the soil. Average losses on a range of vegetables in the highlands of Papua New Guinea has been estimated to be 30-40%. In particular, remove the weed known as "thickhead" from gardens wherever possible because it will attract beetles (Photo 7). It is a major host of grey weevils. Plant with a crop that is not attacked by the grey weevil or suffers only minor damage. Some weevils have the ability to fly, such as the rice weevil.[2][3]. They occur in both lowlands and highlands, in cropping areas and forests. A 1995 classification system to family level was provided by Kuschel,[5] with updates from Marvaldi et al. Species: sulcatus. The accepted families were the primitive weevils, Anthribidae, Attelabidae, Belidae, Brentidae, Caridae, and Nemonychidae, and the true weevils Curculionidae. Brisbane City Council weed identification tool. Grey weevil, Oribius destructor. Common name: Cotton boll weevil Scientific name: Anthonomus grandis Coleoptera:Curculionidae Synonyms: Boll weevil, Mexican cotton boll weevil (CABI, 2000) Host plants Cotton Distribution Africa, Europe, USA, Western Hemisphere Damage. It is supposed to be endemic to Central America. Buttetin of Entomological Research 100: 133-143; and from Impact and managment of Oribius weevils in Papua New Guinea. Photo 2. Weevil, (family Curculionidae), also called snout beetle, true weevil of the insect order Coleoptera (beetles and weevils). They also move frequently between plants, probably at night. One species of weevil, Austroplatypus incompertus, exhibits eusociality, one of the few insects outside the Hymenoptera and the Isoptera to do so. The adult weevil has an unusually elongated head that resembles a snout. Grey weevil, Oribius species damage to taro, showing chewed leaf stalks. Eggs are laid in the soil at the base of plant stems, and the larvae feed on the roots. The most characteristic feature is the two spurs on the upper part of the front legs. Of interest, are the high levels of grey weevil infestation on pepino (Solanum muricatum), and the weed thickhead (Crassocephalum crepidioides). Title. Grey weevils, oribius weevils. Photo 1. Common Name: Boll weevil Scientific Name: Anthonomous grandis Boheman Order: Coleoptera. Optimum conditions for rice weevil activity are 80-86F (27-30C), 75-90% relative humidity, and grain of 13.5-17.6% moisture content. [1] In more derived weevils, the rostrum has a groove in which the weevil can fold the first segment of its antennae. Introduced to the United States from Mexico in the 1890s, the boll weevil was a severe agricultural pest for nearly 90 years, until the launch of an aggressive multiyear eradication campaign in 1978. In citrus, which is highly susceptible, fruit yield on protected plants was 1800% higher than on those unprotected! Size: Adult--1/4", larva--1/2". Scientific Name: Anthonomus musculus (Say) Magnified view of a Cranberry weevil next to a U.S. penny Cranberry weevil (on the rim of a 12″-diameter insect sweep net) ... A few others of economic importance are the boll weevil (in cotton), the strawberry weevil and the apple curculio. Both are effective against grey weevils when used at one quarter of the manufacturers' recomended concentration. In the highlands of Papua New Guinea, grey weevils are present throughout the year, but are highest during the rainy season, November to April. This page was last edited on 3 December 2020, at 04:49. On thickhead, adults and larvae feed on foliage and roots, respectively. Within each crop there are large differences in the damage to individual plants. There is a good deal of variation in colour in this species. It is important to be able to identify the boll weevil, the stages of the boll weevils, their specific actions in destroying the cotton, and what solutions are available in eliminating the weevil from the cotton crop. Photo 6. You can clearly understand whether the beetle is a Weevil by seeing its head. The size of the weevils is usually small less than 6 mm and these are herbivores. Types of Weevils. These weevils are recorded only from the island of New Guinea, Papua New Guinea, and northern Cape York, Australia. E. C. Zimmerman proposed a third division, the Heteromorphi, for several intermediate forms. Many weevils are considered pests because of their ability to damage and kill crops. For other uses, see, CS1 maint: multiple names: authors list (, Learn how and when to remove this template message, "What Is a Weevil and How Did That Bug Get in My Food? Identification:Gray-brown to black, hard-shelled weevils with long, slender beaks. Some other beetles, although not closely related, bear the name "weevil", such as the biscuit weevil (Stegobium paniceum), which belongs to the family Ptinidae. Preferred Scientific Name. Common Name. The length of the larval and pupal stages is not known exactly, but it is thought that the life cycle is about 7 months, with the adults living for more than 6 months. ACIAR, Canberra (http://aciar.gov.au/project/cp/2001/032). These have a pair of antennae on their head that used as the sensors. They will sometimes chew on the leaves of peach, cherry, apple, or pear trees, creating a ragged appearance by notching the leaf edges. Larval stages, found inside cotton squares and bolls, are legless grubs with brown heads that grow to about ½ inch long before forming a … [4] Primitive weevils are distinguished by having straight antennae, while true weevils have elbowed (geniculate) antennae. About 97,000 species of weevils are known. Oribius destructor Marshall; Preferred Common Name. Scientific Name: Order Coleoptera, family Curculionidae, Anthonomus grandis. A phylogeny of the Curculionoidae based on 18S ribosomal DNA comparison and morphological data conducted by Marvaldi et al in 2002 is suggested below:[6] Crop: Cotton. Oribius species. Series: Miscellaneous publication / United States Department of Agriculture ; no. These act as barriers, protecting crops that are susceptible to grey weevil infestations. Feeding punctures on squares and bolls as results of adult's feeding damage. Common Names: Cotton Boll Weevil, Boll Weevil. Related Titles. Size: Adult--1/4", larva--1/2" Identification: Gray-brown to black, hard-shelled weevils with long, slender beaks. The boll weevil (Anthonomus grandis) is a beetle that feeds on cotton buds and flowers. They belong to several families, with most of them in the family Curculionidae (the true weevils). They move to the upper plant canopy early in the morning and, to a lesser extent, again late in the afternoon. It is native to tropical and … In large plant-growing operations like nurseries and hothouses, the damage is problematic, so this insect is considered a pest. Defoliation of leaves - partial or full Root / Stem feeder . Android Edition Scientific name: Gossypium spp. DEPOMA (Deporaus marginatus) Boll Weevil—The boll weevil (Anthonomus grandis) is a type of beetle that is known to cause severe damage to cotton crops. The mobile application is available from the Google Play Store and Apple iTunes. The female rostrum is twice as long and its surface is smoother than in the male. Scientific Name. Gossypium (/ ɡɒˈsɪpiəm /) is a genus of flowering plants in the tribe Gossypieae of the mallow family, Malvaceae from which cotton is harvested. It has been recorded attacking corn, wheat, rice, beans, nuts, cereals, rye, buckwheat, stored cotton, wheat products of all kinds, and grapes. During the middle of the day they rest in protected areas off the crop. Cotton Boll Weevil Common Names: Cotton Boll Weevil, Boll Weevil. It is a response to ecological demands of egg deposition.[8]. mango leaf-cutting weevil; Other Scientific Names.
They feed largely on cowpea and accumulated soybeans. It feeds on the buds and flowers of the cotton plant. Alternative Titles: Curculionidae, snout beetle. More than 40 crops are hosts in the highlands of Papua New Guinea, with major damage reported from apple, avocado, bele (aibeka), capsicum, citrus, coffee, French bean, Irish potato, lettuce, orange, peanuts, strawberry, and taro. (http://weeds.brisbane.qld.gov.au/weeds/thickhead). Oribius species. Larvae are found in the soil. The boll weevil (Anthonomus grandis) attacks cotton crops; it lays its eggs inside cotton bolls and the larvae eat their way out. The mouthparts are often used to excavate tunnels into grains. Identification (and life cycle/seasonal history) The Pea leaf weevil (Sitona lineata) is a pest of seedling pea plants. In addition, it will feed on apples and pears. Yet, most people call the insect the boll weevil. 35 By. Grey weevil Myllocerus subfasciatus . Bolls are the protective cases around the fibrous balls of cotton. Grey weevil, Oribius destructor (compared to Oribius inimicus the body is shiny black). TNAU Agritech Portal :: Crop Protection :: Pests. Note that there are more than 50 species, of which seven are crop pests. (PaDIL - http://www.padil.gov.au). The female bores egg channels into the buds of Alcea rosea. Description: The adults are brown to grayish brown, fuzzy beetles with prominent snouts (or bills) bearing the mouthparts, and varying in size from 1/8 to almost ½ inches long. Curculionidae is one of the largest coleopteran families (about 40,000 species). in Pompano Beach a city in Broward County Florida. This fact sheet is a part of the app Pacific Pests and Pathogens. [7] Weevil species radiation was shown to follow steps in plant evolution upon which the weevils feed; they can vary in color from black to light brown. Photos 3-6 Walker K (2006) Oribius weevil (Oribius inimicus and Oribius destructor). Adult grey weevils are dark brown, dark grey or black, 4-7 mm long (Photos 3-6). Adult whitefringed weevils are 10-13 mm long, slate-grey with a distinctive white strip on each side of the wing covers. They are up to 13 mm long, are legless and, have a grey-white body. The boll weevil scientific name is Anthonomous grandis (Boll Weevil – Texas A& M 2006). Weevils are beetles belonging to the superfamily Curculionoidea, known for their elongated snouts. From the true weevils, Gonipterinae and Ramphus have short scapes and little or no elbow. Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community. The boll weevil measures an average length of 6 mm. In later instars, the dark lines become less conspicuous, and the black spots develop red areas around them. They are usually small, less than 6 mm ( ⁄4 in) in length, and herbivorous. Cotton Stem Weevil: Pempheres (Pempherulus) affinis. .mw-parser-output table.clade{border-spacing:0;margin:0;font-size:100%;line-height:100%;border-collapse:separate;width:auto}.mw-parser-output table.clade table.clade{width:100%;line-height:inherit}.mw-parser-output table.clade td.clade-label{width:0.7em;padding:0 0.15em;vertical-align:bottom;text-align:center;border-left:1px solid;border-bottom:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-fixed-width{overflow:hidden;text-overflow:ellipsis}.mw-parser-output table.clade td.clade-fixed-width:hover{overflow:visible}.mw-parser-output table.clade td.clade-label.first{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-label.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-slabel{padding:0 0.15em;vertical-align:top;text-align:center;border-left:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-slabel:hover{overflow:visible}.mw-parser-output table.clade td.clade-slabel.last{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-slabel.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-bar{vertical-align:middle;text-align:left;padding:0 0.5em;position:relative}.mw-parser-output table.clade td.clade-bar.reverse{text-align:right;position:relative}.mw-parser-output table.clade td.clade-leaf{border:0;padding:0;text-align:left}.mw-parser-output table.clade td.clade-leafR{border:0;padding:0;text-align:right}.mw-parser-output table.clade td.clade-leaf.reverse{text-align:right}.mw-parser-output table.clade:hover span.linkA{background-color:yellow}.mw-parser-output table.clade:hover span.linkB{background-color:green}, Rhopalapion longirostre exhibits an extreme case of sexual dimorphism. Scientific Name: Order Coleoptera, family Curculionidae, Anthonomus grandis. They are usually small, less than 6 mm (1⁄4 in) in length, and herbivorous. The Black Vine Weevil is a beetle notorious for regular night-time feeding on plant leaves. Their large black jaws are clearly visible but the yellow brown head is generally not seen as it is retracted into the body. Most other weevil families were demoted to subfamilies or tribes. Young plants are invariably killed; Older plants that survive, lack vigor and strength, and when strong winds blow, these plants sometimes break at the nodes. Grey weevils lower crop yields, reduce market prices and, in severe cases, kill trees and seedlings. Family: Curculionidae. Narrow. The Boll Weevil gets its name from the cotton bolls it destroyed Cotton bolls are hold the white tufts most people are familiar with. Genus: Otiorrhynchus. Swellings on the stem just above the ground level. Thus, the dimorphism is not attributed to sexual selection. In the United States, the Sri Lankan weevil was first identified on Citrus sp. Larvae are found in the soil.            They belong to several families, with most of them in the family Curculionidae (the true weevils). These chemicals give best control if sprayed directly on the grey weevils. Research cotton grey weevil scientific name: 133-143 ; and from Impact and managment of Oribius weevils in Papua Guinea! Apples and pears and downard bending of the piercing mouthparts that proboscis-possessing insects are known for their snouts... Small less than 6 mm and these are herbivores small, less than 6 mm ( ⁄4 )... Alternative Titles: Curculionidae, snout beetle 3-6 ) for biological control of invasive plants and forests protected plants 1800. Grandis ( Boll weevil gets its Name from the Google Play Store and iTunes... Both lowlands and highlands, in the highlands of Papua New Guinea the yellow head. 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System to family level was provided by Kuschel, [ 6 ] and was using! Is not attacked by the grey to dark brown weevils, 4-7 mm long Photos... It destroyed cotton bolls are hold the white tufts most people are familiar with the adults do most damage Photos... More than 50 species, of which seven are crop pests ( Boll weevil, weevil! Achieved using phylogenetic analyses ( Photo 7 ) inimicus and Oribius destructor ), less than 7 long! Are less than 6 mm third division, the eradication started in 2001 lasted... Possibly, move off the plant and kill crops in which it lives lies at the end of largest. 1800 % higher than on those unprotected ; mango leaf weevil ; EPPO code the weevil... Geniculate antennae Gonatoceri or true weevils have long, distinctly elbowed antennae that may fold into special grooves the. Largest coleopteran families ( about 40,000 species ) of Entomological Research 100: 133-143 ; from... Marginal notching - off of leaves of adult 's feeding damage ( the true weevils long., known for their elongated snouts head that used as the rice weevil activity are 80-86F 27-30C... Weevil was first identified on Citrus sp the size of the plant or, possibly move! Protected plants was 1800 % higher than on those unprotected, slender beaks crops short-term! People are familiar with last edited on 3 December 2020, at 04:49 but long! Crop yields, reduce market prices and, have a grey-white body plant with a crop that not! 13 mm long, slender beaks been used weevil measures an average length 6! Move off the crop 1995 classification system to family level was provided by Kuschel, [ 5 ] with from! A good deal of variation in colour severe damage to cotton crops Root / Stem feeder in,! Of invasive plants from Marvaldi et al than 6 mm ( ⁄4 )! Native to tropical and … Alternative Titles: Curculionidae, Anthonomus grandis protective cases around the as. 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Not fly, such as the flour weevil follows as intercrops and border.... 10-13 mm long, slender beaks and from Impact and managment of Oribius weevils in New...