Smaller european elm bark beetle nc state extension. Assessing the invasive risk of bark beetles curculionidae. Adults become covered in fungal spores upon emergence from brood material and inoculate elms. Scolytus multistriatus wy cooperative agricultural pest. The smaller european elm bark beetle overwinters as a larva and changes into a pupa and then into an adult in the spring. Scolytus is a genus of bark beetles subfamily scolytinae. Pupation started from the first week of april and the first. Characterization of two nonnative invasive bark beetles. The dutch elm disease is spread in north america by two species. Since 2009, the biology and the life cycle of scolytus amygdali have been studied in tunisia. Scolytus multistriatus associated with dutch elm disease on.
Scolytus intricatus is a pest of broadleaf trees in europe and scolytus morawitzi is a pest of larch in asia. Smaller european elm bark beetle scolytus multistriatus marsham j. The morphology of the antennal clubs of both male and female s. Morphology of the antennal club of scolytus scolytus f.
Smaller european elm bark beetle, scolytus multistriatus host. Scolytus multistriatus is the principal vector of the dutch elm disease fungus ophiostoma ulmi buisman melin and nannf in north america, which killed 5075% of the elm population in northeastern north america prior to the 1930s bloomfield, 1979. Files are available under licenses specified on their description page. Mating occurs here and then the female makes galleries in the trunk where she lays eggs. Save map as png save map as svg save list as excel file save list as csv file. Three field studies were conducted to ascertain if pheromones are responsible in part for the aggregating behavior of scolytus multistriatus marsham.
All structured data from the file and property namespaces is available under the creative commons cc0 license. This species breeds in all species of elms and the related japanese zelkova, but dutch elm disease is primarily a problem in american elm. Larval feeding may hasten the death of a tree but they seldom are found in. Fauna of new zealand, 28 extract and pdf reference page. History and management plan natural resource report nps. Scolytus multistriatus marsham and scolytus scolytus f. Scolytus schevyrewi, was much more abundant than the longestablished european elm bark beetle, s. Sixty years of discovering scolytine and platypodine diversity. Scolytus multistriatus smaller european elm bark beetle. The species spectrum was identical and the relative abundance of mites was very similar for both species of scolytids. After maturation feeding and mating in the twig feeding phase, the females attack the main tree bole where they construct a.
Survey of the behavior of scolytus multistriatus on gotland in lifeelmias 202016 flight periods for the scolytus multistriatus are important information for assessing when inventory of ded should begin if, the ded infected trees is going to be identified as efficiently as possible. Michenera artocreas in elm wood infested with scolytus. Adult feeding can cause small twigs to fall from the trees. The disease occurs sporadically, how ever, in areas of new york state where this species is not known. Observations on the relative effectiveness of scolytus multistriatus marsham and scolytus pygmaeus fabricius coleoptera. Scolytus multistriatus marsham, 1802 other system links.
Phoretic mites and nematode associates of scolytus multistriatus and scolytus pygmaeus coleoptera. Emergence holes of the smaller european elm bark beetle, scolytus multistriatus 26. Michenera artocreas in elm wood infested with scolytus multistriatus in australia d. Ciesla, forest health management international, 25. Scolytus multistriatus marsham, the smaller european elm bark beetle, is a vector for dutch elm disease ded that in the year 2005 invaded the island of gotland sweden. Scolytus multistriatus scolytidae dutch elm beetle. Smaller european elm bark beetle scolytus multistriatus. Scolytus multistriatus 4 dorsal habitus of scolytus multistriatus 5 lateral habitus of scolytus multistriatus. The aim of this study was to monitor flying periods of s. Survey of the behavior of scolytus multistriatus on. Aspects of the feeding behavior of scolytus multistriatus. The suitability of the lesser european elm bark beetle, scolytus multistriatus marsham, and the mountain pine beetle, dendroctonus ponderosae hopkins, as hosts for the entomogenous nematode. Smaller european elm bark beetle, scolytus multistriatus marsham, is an introduced bark beetle that is one of the two main vectors of dutch elm disease along with the native elm bark beetle, hylurgopinus rufipes eichhoff in the eastern united states and canada. The biological and morphological characters of this species were determined both in field and in the laboratory.
An scolytus in nahilalakip ha familia nga curculionidae. History and management plan natural resource report npsncr. Insects and diseases of mediterranean forest systems. Elm bark beetle scolytus kashmirensis is a key pest of elm nurseries in the social forestry ecosystem of kashmir.
The adults of scolytus multistriatus, the european elm bark beetle, fly to the crowns of elm trees and bore a small hole in the twig crotches see picture at top. The egg galleries are straight and parallel with the grain of the wood and. Wolfenbarger and buchanan 1939 and whitten 1958 noted that most feeding occurred in the outer portion of the upper crown region, but offered no quantitative data. A revisional study of the genus scolytus geoffrey eccoptogaster herbst in north. Nov 22, 2019 observations on the relative effectiveness of scolytus multistriatus marsham and scolytus pygmaeus fabricius coleoptera. Laboratory bioassays two methods and field tests demonstrated synergistic action of the three components. Scolytus multistriatus scolmuoverview eppo global database. Scolytus multistriatus tunnels on an elm tree killed by dutch elm disease 2014, moscow, russia courtesy. May 26, 2016 scolytus multistriatus marsham, the smaller european elm bark beetle, is a vector for dutch elm disease ded that in the year 2005 invaded the island of gotland sweden. General information about scolytus multistriatus scolmu. Survey of the behavior of scolytus multistriatus on gotland. The smaller european elm bark beetle, scolytus multistriatus, was introduced into north america during the early part of the twentieth century and is now present over much of canada and the usa. Response of the european elm bark beetle, scolytus.
Host acceptance and larval competition in the banded scolytus. Genus scolytus 1scolg species scolytus multistriatus scolmu. Scolytus multistriatus, the european elm bark beetle or smaller european elm bark beetle, is a bark beetle species in the genus scolytus. The identification of the disseminating and inoculating agent or. Scolytus multistriatus vector of dutch elm disease.
The introductions of these taxa range from species that may have invaded over 100150 years ago e. The underside of the rear is concave, with a noticeable projection or spine. Scolytus multistriatus an overview sciencedirect topics. I have since learned that elm bark beetles are highly. Natality, mortality and control of the elm bark beetle. Pdf suitability of scolytus multistriatus and dendroctonus. This is an extremely small bark beetle which is found underneath the bark of elm. The banded elm bark beetle, scolytus schevyrewi semenov. Five years of trapping efforts for the usda aphis ppq national woodboring bark beetle. We also produced a highrisk list of the top 20 bark beetles which are included on the current import plant quarantine pest list that are the most likely to become established in china, and easily found ips typographus, hylurgus ligniperda, and scolytus multistriatus have a relatively high som value. The larvae remained inactive throughout the winter which resumed their activity from the third week of march. The distinctive galleries of scolytus multistriatus remain evident many years after the beetle and its resulting offspring have died, and such galleries mark virtually every single elm stump and branch left in nottinghamshire. The smaller european elm bark beetle, scolytus multistriatus, is dark reddish brown, shiny, and about 1 8 inch long.
Five years of trapping efforts for the usda aphis ppq national woodboring bark beetle survey program have. European elm bark beetle, scolytus multistriatus, and the banded elm bark beetle, scolytus schevyrewi, are the major vectors of ded in utah. Individually and in pairs the components were slightly attractive. Rumba school of agriculture and forestry, university of melbourne, parkville 3052, australia michenera artocreas has been found in elm wood with scolytus multistriatus, a vector of the dutch elm disease fungus, in melbourne. The sexes mate at this time and then the female may bore into the main trunk and lay eggs in her straight galleries. As i removed the bark i found the piece infested with bark beetles which i later identified as scolytus multistriatus, the european elm bark beetle, a known carrier of the ded fungus. Phoretic mites and nematode associates of scolytus. Ilya mityushev, department of plant protection of the russian timiryazev state agrarian university. Scolytus multistriatus noun the noun scolytus multistriatus has 1 sense 1. Spores of dutch elm disease fungus are introduced in these wounds. Pdf scolytus multistriatus associated with dutch elm. Scolytus multistriatus noun the noun scolytus multistriatus has 1 sense. Smaller european elm bark beetle, scolytus multistriatus. Scolytus multistriatus associated with dutch elm disease.
This study was initiated to determine whether competitive displacement of s. Scolytus multistriatus scolmuphotos eppo global database. Attraction of elm bark beetles, scolytus multistriatus, to. Guide to insect borers of north american broadleaf trees and shrubs. All structured data from the file and property namespaces is available under the. Attraction of elm bark beetles to cut limbs on elm.
Maternal and larval galleries of the smaller european elm bark beetle, scolytus multistriatus, w. The elm bark beetle hylurgopinus rufipes, native to eastern and central united states, is also briefly discussed. The island possesses the largest population of elm mainly ulmus minor mill. Transmission of ded occurs during maturation feeding of adults on twigs of host trees. On my return i decided to take that piece away and debark it. Solomon research entomologist retired, southern forest experiment station, southern hardwoods laboratory, stoneville, mississippi from. The smaller european elm bark beetle scolytus multistriatus is a vector for the fungus dutch elm disease ceratocystis ulmi and uses ulnus spp. Comments accidentally introduced to north america, the smaller european elm bark beetle was first reported in canada in 1946, in ontario where its distribution area gradually expends, with the next report occurring in. Scolytus sexualdimorphismus links weibchen, rechts mannchen. It was brought to north america through the importation of unbarked elm logs containing live brood of the pest. In europe, while the aforementioned scolytus multistriatus again acts as vector for. Scolytus multistriatus used as a noun is very rare.
Natality is more important than mortality in the determination of the number of firstgeneration adults of scolytus scolytus f. It includes several species notorious for destroying trees in the forests. Host acceptance and larval competition in the banded. The reverse is the case for the overwintering generation.
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