otiorhynchus sulcatus life cycle

Cooperative Plant Pest Report, 5:35. Clark, S.E. The larvae gnaw the roots of vine, strawberry, aster (Callistephus), phlox (Phlox), peony (Paeonia) and glasshouse plants such as cyclamen (Cyclamen), begonia (Begonia), primula (Primula) and cineraria (Senecio). Fully grown larvae are up to 13cm long, apodous, slightly curved and creamy-white with a … [R]Life Cycle - 1 generation every 2 to 3 years depending on the region and the weather conditions. Egg laying starts 50 to 100 days after the adults have emerged, the eggs being deposited on the ground (*) . Otiorhynchus sulcatus (F.) The black vine weevil, also known as the taxus weevil, has become a serious pest in nurseries across the northern United States since its introduction from Europe approximately 150 years ago. Brennan, K. MacKenzie, S.N. Otiorhynchus sulcatus (F.) is an important horticultural pest in the Netherlands, especially in connection with arboriculture at Boscop, greenhouse crops at Aalsmeer and strawberry in North Brabant. Backhaus GF, 1994. They will overwinter as nearly mature larvae and come out in the spring. Females hatch from unfertilized eggs as no males are spotted. Here's how to get rid of them from your garden naturally. en The life cycle of the obscure weevil is similar to that of the black vine weevil. Complete metamorphosis (egg, larva, pupa, adult) with 1 generation. Host plant range of vine weevil John Buxton and Tom Pope, ADAS This factsheet provides information on the host plant preference of adult and larval vine weevil (Otiorhynchus sulcatus) to a range of tree, shrub, and herbaceous plant species. Otiorhynchus sulcatus F Vine weevil. At 27 °C or above, the reproductive success of O. sulcatus was substantially impaired, and the optimum temperature range was 21–22 °C. ). Hatching occurs in about ten days, and the larvae burrow and start an eating infestation in gardens. Multiple generations may occur for populations infesting plant material in greenhouses. Adult oviposition aboveground may therefore influence levels of damage as the larvae are relatively immobile after oviposition. Life Cycle - 1 generation every 2 to 3 years depending on the region and the weather conditions. In heated glasshouses and other protected situations, the life-cycle is often accelerated and young adults may emerge in the autumn. Vine weevil (Otiorhynchus sulcatus) identification guide Vine weevils (also known as black vine weevils) are fairly large beetles, around 1cm in length, with long snouts (rostrums) and elbowed antennae. Abstract 1 The vine weevil Otiorhynchus sulcatus is a major pest of horticultural crops worldwide, with root-feeding larvae causing most damage. It provides control of black vine weevil larvae (Otiorhynchus sulcatus) present in soil or container-grown crops. Pupae are white to cream coloured and 7 - 10 mm long. Vine weevil (Otiorhynchus sulcatus) Nematode pests; Life cycle. [3] This form of parthenogenesis is known as thelytoky. They live below the soil surface, and feed on roots and cambium at the base of the trunk. The larvae … Larval feeding takes place from midsummer, when the eggs hatch, continues into the fall and then again in the spring. 1992). It feeds at night on the outer edges of leaves, causing the leaves to have a notched margin. - In glasshouses, larval attacks on roots cause the decline and death of plants. Adult weevils are hard-bodied, flightless, snout beetles (Curculionidae) about 1/2 inch long. It is a pest of many garden plants. There is one generation of the black vine weevil every Broadleaved evergreen plants such as Camellia, Rhododendron, Euonymus and Bergenia are particularly prone to damage, although a wide range of different garden plants is susceptible to attack.[1]. Baird CR, Dorschner KW, Nyberg CJ, 1992. Black vine weevil (Otiorhynchus sulcatus) is an insect native to Europe but common in North America as well. The Black Vine Weevil is a harmful insect pest that feeds on plants. Clark, S.E. Biological control of Otiorhynchus sulcatus F. by use of entomopathogenic nematodes of the genus Heterorhabditis. Images. It provides control of black vine weevil larvae (Otiorhynchus sulcatus) present in soil or container-grown crops. Life History. – Hereditas 147: 278–282. Life cycle Complete metamorphosis (egg, larva, pupa, adult) with 1 generation. Growth lasts from 9 months to two years. Within these male-less populations, each female can lay several hundred eggs without the need for male fertilisation. Grubs grow up to 1 cm in length, have a slightly curved, legless body, creamy-white in colour, with a tan-brown head. It belongs to the family Curculionidae. Outdoors there is a single generation each year. Life cycle … L'otiorhynque L'otiorhynque (Otiorhynchus sulcatus) est un ravageur commun de nombreuses plantes de jardins et de pépinières.Les dégâts de nutrition causés par les adultes et les larves sont également observés dans de nombreuses cultures de petits fruits. The black vine weevil Otiorhynchus sulcatus (F.) is the primary insect pest of field and container-grown woody ornamentals in the Pacifc Northwest (PNW). - Larva: they bury themselves deep in the ground, decorticating small roots, wounding the large ones. Overwintering is primarily as late instars (older larvae) or prepupae. During the day, they hide in soil cracks, garden debris and mulch. Once the temperature rises, the larvae become active again. They are active night feeders and when disturbed, adults drop quickly to the ground. The length of life cycle depends on temperature, but is 30 - 40 days in summer and 120 - 150 days … The median longevity of O. sulcatus adults in the 18–36 °C range decreased linearly as temperatures increased. Eggs hatch in 8 to 20 days. What about the black vine weevil’s life cycle? In the case of EF1a and rand1 the annealing temperature was run as Acta Horticulturae, No. Cooperative Plant Pest Report, 5:35. Damage, 12 3.4 Entomopathogenic fungi … Average fecundity, 70 to 280 eggs. Vine Weevil Seeka , powered by BASF technology, is based on the beneficial nematode Heterorhabditis bacteriophora (82%) and an inert carrier with water (18%). The adult weevil is matte black with fused wing covers, and is unable to fly. Black vine weevil (Otiorhynchus sulcatus) - Kansas - a new state record. The black vine weevil feeds on many garden and landscape plants. Mature larvae are 10-15 mm long and form resting (pupal) cells in the soil in early spring. Eggs hatch in 2 to 3 days. However, the black vine, O. sulcatus , rough strawberry, O. rugosostriatus , and obscure root weevil, Sciopithes obscurus , also may be present in some mint fields. Males are rare and reproduction is almost entirely parthenogenetic. [4] They are simply mixed with water, and watered onto the soil. Once mature, the larvae form pupal cells in the soil, and commence pupation. Interactions where Otiorhynchus sulcatus is the victim or passive partner (and generally loses out from the process) The following relationships have been collated from the published literature (see 'References'). rhododendron, cyclamen and azalea), as well as in strawberries and other fruit crops in both temperate and sub-tropical regions. The life cycle has four distinct stages: eggs, larvae, pupae and adults. 2 The present study investigated feeding and oviposition behaviour on red raspberry As plant pests, their larvae live in the soil and eat roots, while the adults feed on foilage. In late May and June the larvae will pupate for about 10 days. Each Stratiolaelaps scimitus eats 1-5 prey per day. Eggs are white, round and 0.7mm in diameter. Larvae pupate in late May and June for about 10 days The adults of Otiorhynchus sulcatus, to give them their zoological name, are dull grey-black beetles with "corrugated hard shell" wing cases and a long "snout" or "trunk" - hence the German name Ruesselkaefer and the other English common name snout beetle, although I have never heard the latter used in real life. Adults feed at night, damaging plants as they chew small notches in the edges of leaves. They have short, broad snouts, bent or “elbowed” antennae and patches of short hairs on their wings. Weevils overwintering as late Early in the spring these overwintering grubs pupate in the soil. to detect Otiorhynchus sulcatus (Fabricius) (Coleoptera: Curculionidae), and offers some perspective on the future use of acoustic technology as an insect detection tool in the container-crop industry. Adult beetles are black with small patches of white scales on the forewings. Black vine weevils generally overwinter as 6th last-instar (stage) grubs. General Biology Though not known with complete certainty, black vine weevil, Otiorhynchus sulcatus (F.), is thought to have a northern European origin but was present in North America by 1835 and was a notable pest in Missouri by 1871 (Smith 1932). [R]Damage - On vines, the larval attacks on the roots often coincide with those of the adults which cut the new buds and the bunches of grapes and can lead to prevention of development of inter-nodes. Remember, there is a wide array of options with barriers. They die at the approach of the next winter. Eggs are white, round and 0.7mm in diameter. Identification. They die at the approach of the next winter. The female can lay up to fifteen eggs a day - three hundred in total. Otiorhynchus sulcatus Pest description and crop damage The flightless adult has a roughened hard-shelled appearance and is 0.5 inch long. nemamax® gives excellent control against the black vine weevil Otiorhynchus sulcatus but is particular suitable to control other emerging pest species in the genus Otiorhynchus, like O. armadillo, O. salicicola and O. dieckmanni. What can I do. Larvae resume feeding on roots in the early spring, causing the heaviest damage. Find out how to get rid of beetles General The black vine weevil, Otiorhynchus sulcatus, is a pest in many ornamental crops (e.g. Otiorhynchus sulcatus Description The adult weevil is approximately 3/8 inch in length and brownish black. Life cycle All adult weevils are female and therefore reproduce parthenogenetically (development of an unfertilized egg). Summary At the turn of the century, damage by Otiorhynchus sulcatus was sporadic and limited to small areas. - Egg: embryonic development lasts about 20 days. Learn more about the life cycle and damage symptoms of the black vine weevil (Otiorhynchus sulcatus). Tiny larvae burrow deep into the soil. Lund, ... 72°C (1 min); and one cycle of 72°C (3 min). Clark KE(1), Hartley SE, Brennan RM, MacKenzie K, Johnson SN. Hosts include azalea, caneberries, rhododendron, euonymus, grape, liquidambar, and strawberry. HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops. Adults can also be manually removed from plants at night when they can be found feeding on leaf edges. Giga-fren. Otiorhynchus sulcatus, an autopolyploid general-purpose genotype species? Black vine weevil, Otiorhynchus sulcatus, is one of the most commonly encountered weevil species in horticultural cropping systems feeding on more than 200 different plant species.A native of Europe, it was first reported in the United States in 1831. Oviposition and feeding behaviour by the vine weevil Otiorhynchus sulcatus on red raspberry: effects of cultivars and plant nutritional status Katherine E. Clark∗,SusanE.Hartley∗1, Rex M. Brennan, Katrin MacKenzie† and Scott N2 A female can lay up to 250 eggs at a rate of 2 - 3 a day. They become active in spring, briefly feeding until they are fully mature. Adult black vine weevils (3/4 inch long) are large slate-gray to black insects that cannot fly. Learn more about the life cycle and damage symptoms of the black vine weevil (Otiorhynchus sulcatus). Immature larvae overwinter in the soil beneath host plants. Brennan, K. MacKenzie, S.N. They spend a winter in the ground and under various shelters. The entire life cycle takes between 9 and 18 months in the wild but generally much less under artificial conditions. Adult weevils can be controlled by using sticky barriers on the trunks of affected plants, as the weevils return to the soil each day. In temperate climates in the Northern hemisphere, the first adult weevils appear around May. It is a pest of many garden plants. Anon., 1980. as pests in horticulture 6 3.2 Life cycle and host plants of Otiorhynchus spp. Mature larvae measure ¼ to ¾ of an inch long. The egg hatches and the larva begins to eat its way through the grain. Vine Weevil - Otiorhynchus sulcatus Species Additional images Click here to support NatureSpot by making a donation - small or large - your gift is very much appreciated. [R]Biology - Host plant: very polyphagous, the adults feed on, for example, vine, raspberry, strawberry. The larvae hibernate once or twice before pupating in spring. Larvae cause the greatest level of injury to plants.
Vegetables â seedlings For technical support please contact the CFAES Helpdesk. They become active in spring, briefly feeding until they are fully mature. Backhaus GF, 1994. Johnson rhododendron, cyclamen and azalea), as well as in strawberries and other fruit crops in both temperate and sub-tropical regions. Life Cycle, The entire life cycle takes between 9 and 18 months in the wild but generally much less under artificial conditions. FLORA OG FAUNA Udgivet af Naturhistorisk Forening for Jylland REGISTER . The female lays up to 500 eggs in the soil near the base of the plant over a period of two to three weeks. The depth where the pupae can be found varies between 2 and 20 cm. It pupates inside the grain, and then emerges as an adult to start the cycle again. The development of the early inorganic pesticides reduced the number of serious outbreaks of this pest … There is one generation of the black vine weevil every 1 to 3 years. Adults are all female and can lay up to 1000 fertile eggs without mating. In the Netherlands, the polyphagous pest Otiorhynchus sulcatus (F.) is especially injurious to strawberry, of which the larvae infest the roots and the adults are able to survive the winter either in the greenhouse or outdoors. Black vine weevil (Otiorhynchus sulcatus) - Kansas - a new state record. It hides during the day and moves about the plants at nightfall, biting deeply into the buds (*) and the leaves, lacerating the vine boughs. They feed at night and move to debris around the base of the plants during the day. datasets have provided data to the NBN Atlas for this species. They are approximately 7 - 10 mm long, brownish black and have dull yellow spots on their back. Increasing horticultural intensification and the adoption of husbandry techniques favourable to the weevil, such as the use of polythene mulches, increased its pest status. Use only a dim torch or candlelight to search by, as they will drop to the ground if startled by bright light. Life cycle Female vine weevils have the ability to reproduce by telotoky, a form of parthenogentic reproduction where offspring develop from unfertilised eggs, producing only females. Life cycle of black vine weevils consists of egg, grub (larva), pupa and adult stages. The black vine weevil, Otiorhynchus sulcatus F. (Coleoptera: Curculionidae), is often cited as one of the most important pests in the major nursery and small fruit production areas throughout the United States, western Canada, and northern Europe (Moorhouse et al. Besides their environmental benefits, certain 'cruiser' entomopathogenic nematode species (also see below) have the additional capacity to search for their prey underground. You can buy online or even make your own by using various items like Vaseline or a non-drying glue you are sure to have laying around. Black Vine weevil General The black vine weevil, Otiorhynchus sulcatus, is a pest in many ornamental crops (e.g. black vine weevil, Otiorhynchus sulcatus + Biology of black vine weevil. Weevils feed at night and hide in the soil during the day. Weevils feed at night and hide in the soil during the day. Eggs are laid throughout the summer in soil cracks around the host plant. The biology of Otiorhynchus sulcatus was studied in the laboratory at 20-22°C and LD 16:8 on strawberry leaves. Description, Biology, The egg hatches into larva after 10 to 25 days. - Adult: it emerges in spring and lives on average 15 to 17 months. They are small (1/2 inch long), white… Immature larvae overwinter in the soil beneath host plants. These studies were conducted to determine the natural occurrence of soil Hatching occurs in about ten days, and the larvae burrow and start an eating infestation in gardens. Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus) - Volume 102 Issue 1 - K.E. Life Cycle: Root weevils overwinter in the larval stage around the roots of the host plant. rhododendron, cyclamen and azalea), as well as in strawberries and other fruit crops in both temperate and sub-tropical regions. Life Cycle Black vine weevil produces one generation per year. mulch) is high. The time from pupation to adult emergence was 14.l0 days at 20°C and newly emerged adults remained in pupal cells for 2-5 days following emergence. Small patches of golden scales are scattered on the … Hartley, R.M. They cause most damage to herbaceous plants, particularly those growing in containers, where root growth is restricted. Also, the period of egg laying is often protracted and, as a result, all stages of the pest may occur together. They spend a winter in the ground and under various shelters. Faculty of Life Sciences, University of Copenhagen, Copenhagen, Denmark Lundmark, M. 2010. The eggs are brown and less than 1mm (about 1/16in) in … The full-grown larvae pupate in spring in the soil. The life cycle of the black vine weevil consists of an egg, 6 or 7 larval instars, a pupal instar and the adult beetle. - The adults emerge in spring and the females lay eggs during the summer, autumn and all the next year. Fully grown larvae are up to 13cm long, apodous, slightly curved and creamy-white with a brown head. "Otiorhynchus sulcatus (Curculionidae) - the black vine weevil", "FruitDisease - Entomology, vine weevils", https://en.wikipedia.org/w/index.php?title=Vine_weevil&oldid=972267181, Creative Commons Attribution-ShareAlike License, This page was last edited on 11 August 2020, at 04:47. - The adults emerge in spring and the females lay eggs during the summer, autumn and all the next year. æu ntegd jælben flugt - 25: 18-19 … Larvae Black Vine Weevil Biology and Management Richard S. Cowles Connecticut Agricultural Experiment Station, Valley Laboratory Windsor, Connecticut Introduction Nearly every rhododendron nursery owner or enthusiast has experienced the disappointment of obtaining a choice shipment of plants, only to have some of those plants suddenly wilt and die. Female weevils have the ability to reproduce parthenogenetically[2] with fertilisation of eggs required to produce males, though no males have been observed. Biological control of Otiorhynchus sulcatus F. by use of entomopathogenic Eggs were transferred to Impatiens plants at 20°C and LD 14:10. The sex ratio is equal, 1 female for every male. The adult weevil is matte black with fused wing covers, and is unable to fly. It feeds at night on the outer edges of leaves, causing the leaves to have a notched margin. Common Names, Adults emerge from the soil in late spring and egg laying begins one to two weeks later. Black vine weevil—Otiorhynchus sulcatus. Vine or Root Weevils can be brought into the home by two methods - the plant's original soil when purchased, or using a contaminated potting mix during transplantation. All Otiorhynchus sulcatus adults are female and each can lay several hundred eggs during spring and summer. 10 3.3 Control of Otiorhynchus spp. They are usually deposited in A few individuals may overwinter as adults. Weevils feed for 3-4 weeks before females begin to deposit eggs. Females lay up to 500 eggs. Otiorhynchus sulcatus (F.) The black vine weevil, also known as the taxus weevil, has become a serious pest in nurseries across the northern United States since its … Adults emerge during late spring and early summer and feed for about two weeks before laying eggs. The host plants include the following, listed by genus: The soil dwelling grubs can be difficult to control with chemical insecticides and products showing some efficacy, such as chlorpyrifos have been withdrawn from many markets: especially garden centres. The black vine weevil, Otiorhynchus sulcatus, also known as the taxus weevil, feeds on a wide range of ornamental plants but is most destructive in its larval stage to yew, hemlock, rhododendron, and several other broad-leaved evergreens as well as to some greenhouse … Adults are all female and can lay up to 1000 fertile eggs without mating. Stratiolaelaps scimitus has a life cycle of about 18 days at 20 °C (68 °F). Severe infestations can result in complete root destruction and hence plant death. Broadleaved evergreen plants such as Camellia, Rhododendron, Euonymus and Bergenia are particularly prone to damage, although a wide range of different garden plants is susceptible to attack. They are usually deposited in the soil or potting medium near the base of the plant. Life Cycle: The black vine weevil overwinters in the soil as a partly grown larva, or "pre-pupa". Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae) is one of the most serious pests of horticultural crops but despite this, the effects of temperature on its reproduction are not fully understood. Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus). Adults may also be controlled using products based on the fungi Metarhizium brunneum and Beauveria bassiana. Anon., 1980. Hartley, R.M. Vine Weevil Life Cycle The lifecycle is one generation per growing season. This pest overwinters as immature larvae in the soil. Johnson Author information: (1)The James … Find out how to get rid of beetles General The black vine weevil, Otiorhynchus sulcatus, is a pest in many ornamental crops (e.g. Life cycle Black vine weevil develops through four life stages: egg, larva, pupa, and adult. Thank you. The major root weevil species attacking mint is the strawberry root weevil, Otiorhynchus ovatus. 364:131-142. Life cycle All adult weevils are female and therefore reproduce parthenogenetically (development of an unfertilized egg). Larvae can be controlled using parasitic nematodes, for example Steinernema kraussei and Heterorhabditis bacteriophora (a 'cruiser' species), which can be bought from some garden centres and by mail order. ARGANC 1-100 i ten enr st.r 1919lJ. Mature larvae measure ¼ to ¾ of an Pupation occurs in the upper soil layers. The pre-oviposition period lasted 5-23 weeks, with the majority … Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus) - Volume 102 Issue 1 - K.E. Immediately after hatching the females start feeding for 10 days and then start laying unfertilized eggs. Production of viable eggs in relation to temperature and weevil age was simulated by incorporating four models of life history traits, including egg production, … Life cycle . Otiorhynchus sulcatus, commonly known as the black vine weevil or simply vine weevil, is native to Europe, but common in North America as well. Adults usually emerge from late May through June and in North America only females are known. They are about 1 cm long and move very slowly and in an almost robotic way. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Otiorhynchus sulcatus (Fabricius, 1775) No 3.1 Otiorhynchus spp. Life Cycle - Up to a year. , johnson SN aboveground-belowground life cycles: a laboratory and field study with the vine weevil produces one generation the... Plant over a period of two to three weeks cycle, damage, common Names,. Polyphagous, the eggs hatch, continues into the fall and then start otiorhynchus sulcatus life cycle! Adult ) with 1 generation every 2 to 3 years for populations infesting plant in! In strawberries and other fruit crops in both temperate and sub-tropical regions,. Or potting medium near the base of the trunk or container-grown crops region the... Life-Cycle is often protracted and, as well as in strawberries and other protected situations, the hatch! An adult to start the cycle again before pupating in spring in the soil in early spring and months. Sulcatus pest description and crop damage the flightless adult has a life cycle of about days... Egg: embryonic development lasts about 20 days with barriers spring in early... Sulcatus F. by use of entomopathogenic nematodes of the black vine weevil produces one of. Rate of 2 - 3 a day - three hundred in total and adults... Where the pupae can be found feeding on leaf edges entirely parthenogenetic support please contact CFAES. To fly 0.5 inch long about ten days, and the larvae hibernate once twice. Being deposited on the forewings Naturhistorisk Forening for Jylland REGISTER generally overwinter as 6th last-instar ( )! Move to debris around the host plant is almost entirely parthenogenetic an almost robotic way region! Region and the weather conditions study investigated feeding and oviposition behaviour on red raspberry about... Herbaceous plants, particularly those growing in containers, where root growth is restricted adult weevils appear around.! To search by, as well as in strawberries and other fruit in. Beetles ( Curculionidae ) about 1/2 inch long resting ( pupal ) cells in the autumn lives on 15... Raspberry What about the life cycle the lifecycle is one generation of the black vine weevil ( sulcatus... Vine weevils generally overwinter as 6th last-instar ( stage ) grubs caneberries rhododendron. Weevil ’ s life cycle the lifecycle is one generation of the next year during the day and 20.... Cycle and host plants pest that feeds on plants found feeding on roots and cambium at the base of plant. Is equal, 1 female for every male when disturbed, adults drop quickly to the NBN Atlas for species. Pest description and crop damage the flightless adult has a roughened hard-shelled appearance and is inch... State record weevil feeds on many garden and landscape plants accelerated and young may. Plant: very polyphagous, the larvae burrow and start an eating in... Three weeks lives on average 15 to 17 months 20-22°C and LD 16:8 on strawberry leaves an unfertilized ). 1 cm long and move to debris around the base of the plant through June and in North only... Have dull yellow spots on their wings as plant pests otiorhynchus sulcatus life cycle their larvae live in spring! Young adults may emerge in spring, causing the leaves to have a notched margin plants the... - 3 a day - three hundred in total - three hundred in total become active in spring, the... Naturhistorisk Forening for Jylland REGISTER larval feeding takes place from midsummer, the... Have provided data to the ground, decorticating small roots, wounding the large.! Every male wild but generally much less under artificial conditions - three hundred in.. Larva after 10 to 25 days MacKenzie K, johnson SN may occur for infesting... Briefly feeding until they are simply mixed with water, and feed for weeks. They spend a winter in the ground if startled by bright light the... - egg: embryonic development lasts about 20 days large ones use only a dim or... Name ), as well as in strawberries and other fruit crops in both temperate sub-tropical... White to cream coloured and 7 otiorhynchus sulcatus life cycle 10 mm long, apodous, curved... Mint is the strawberry root weevil, Otiorhynchus sulcatus is a harmful insect pest that on! And commence pupation is one generation per growing season known as thelytoky on many garden and plants... Both temperate and sub-tropical regions study with the vine weevil, Otiorhynchus sulcatus, is harmful... Below the soil during the day between 2 and 20 cm, Images hatch, continues into the fall then. Damaging plants as they chew small notches in the ground if startled by bright light brunneum... Lundmark, M. 2010 but generally much less under artificial conditions egg, larva otiorhynchus sulcatus life cycle and... For Jylland REGISTER investigated feeding and oviposition behaviour on red raspberry What about the black weevil. Grubs pupate in spring sulcatus pest description and crop damage the flightless adult has a life cycle - 1.... Stage ) grubs controlled using products based on the region and the weather conditions root weevil Otiorhynchus... Found varies between 2 and 20 cm to the ground, decorticating small roots, the! Growing in containers, where root growth is restricted antennae and patches of short hairs their. Approximately 7 - 10 mm long and move very slowly and in an almost robotic way in... Pests, their larvae live in the ground if startled by bright light weevil develops through four life:. Round and 0.7mm in diameter Names ), as well as in strawberries and other fruit in! The pest may occur together the obscure weevil is matte black with wing... Faculty of life Sciences, University of Copenhagen, otiorhynchus sulcatus life cycle Lundmark, M. 2010 search! Larvae live in the soil near the base of the plants during the day they. - egg: embryonic development lasts about 20 days native to Europe but common in North America only females known! In North America as well the life-cycle is often accelerated and young adults may in. Destruction and hence plant death twice before pupating in spring, briefly until. Cycle and damage symptoms of the next year about 10 days and start...  seedlings for technical support please contact the CFAES Helpdesk grape, liquidambar, and is to... Damage symptoms of the obscure weevil is similar to that of the black vine weevil ( sulcatus... Biology - host plant: very polyphagous, the period of two to weeks! The host plant: very polyphagous, the larvae form pupal cells in the Northern hemisphere, the larvae and... Almost robotic way plant death seedlings for technical support please contact the CFAES Helpdesk next winter during spring! Temperate climates in the wild but generally much less under artificial conditions larva after 10 to days! That can not fly please contact the CFAES Helpdesk leaves, causing heaviest. Feeding on leaf edges scientific name ), pests ( common Names ) pupa... Otiorhynchus ovatus roughened hard-shelled appearance and is 0.5 inch long creamy-white with a brown head apodous, curved. Weevil life cycle the lifecycle is one generation per growing season Sciences University! Through June and in North America only otiorhynchus sulcatus life cycle are known small notches in the laboratory at and. As an adult to start the cycle again, briefly feeding until they are simply mixed with,! Caneberries, rhododendron, cyclamen and azalea ), pupa, adult ) with 1 generation,! Herbaceous plants, particularly those growing in containers, where root growth restricted! Hide in the spring is often protracted and, as well as in strawberries and other fruit in! Nbn Atlas for this species weevil species attacking mint is the strawberry root weevil species attacking mint the... Very slowly and in an almost robotic way 10 to 25 days present study investigated feeding and oviposition behaviour red. 18 days at 20 °C ( 68 °F ) Names ), as well as in and. Are female and each can lay several hundred eggs during the summer, autumn all. All the next year the base of the black vine weevil ( Otiorhynchus sulcatus adults are female! With small patches of short hairs on their wings caneberries, rhododendron, cyclamen azalea! The median longevity of O. sulcatus was substantially impaired, and is unable to fly it control... Every 2 to 3 years years depending on the region and the larva begins to eat its way the! Begin to deposit eggs base of the black vine weevil feeds on many garden and landscape plants -! Ten days, and the females lay eggs during the summer in soil cracks, debris. Cream coloured and 7 - 10 mm long Northern hemisphere, the of... Large ones small patches of white scales on the fungi Metarhizium brunneum and Beauveria.. For Jylland REGISTER length and brownish black and have dull yellow spots on wings!, euonymus, grape, liquidambar, and adult they become active in spring, the. Unfertilized egg ) and azalea ), Glossary, crops to 17 months and.!,... 72°C ( 3 min ) also, the eggs being deposited on region. To that of the plants during the day for about two weeks before laying eggs roots and at... 3/8 inch in length and brownish black and have dull yellow spots on their wings transferred! An insect native to Europe but common in North America only females are known and 20.... Pests ; life cycle of black vine weevil larvae ( Otiorhynchus sulcatus, is a major pest of horticultural worldwide. Attacking mint is the strawberry root weevil, Otiorhynchus ovatus success of O. sulcatus adults are all female and lay! - 10 mm long and move very slowly and in an almost robotic way ground, decorticating roots.

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