Characterization of two nonnative invasive bark beetles. This species breeds in all species of elms and the related japanese zelkova, but dutch elm disease is primarily a problem in american elm. Fauna of new zealand, 28 extract and pdf reference page. Scolytus multistriatus smaller european elm bark beetle. The tunnels are first small, becoming wider as the larvae develop and move away from their birthplace. Scolytus schevyrewi, was much more abundant than the longestablished european elm bark beetle, s. The egg galleries are straight and parallel with the grain of the wood and. Documents about scolytus multistriatus scolmu this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Semiochemicalmediated flight strategies of two invasive elm. Scolytus multistriatus tunnels on an elm tree killed by dutch elm disease 2014, moscow, russia courtesy. Phoretic mites and nematode associates of scolytus multistriatus and scolytus pygmaeus coleoptera. 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.
Spores of dutch elm disease fungus are introduced in these wounds. In europe, while the aforementioned scolytus multistriatus again acts as vector for. 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. Chemical attractants for the smaller european elm bark beetle. Scolytus multistriatus wy cooperative agricultural pest. The dutch elm disease is spread in north america by two species. Ilya mityushev, department of plant protection of the russian timiryazev state agrarian university. The response of the elm bark beetle,scolytus multistriatus marsham, was measured to various doses and mixtures of the three components of its aggregation pheromone. Trunk and limb applications of pyrethroids can help, but timing is critical treatment should coincide with adult woodborer activity and proper coverage can be difficult for large trees. Field response of the dutch elm disease vectors, scolytus multistriatus marsham and scolytus scolytus f. This is an extremely small bark beetle which is found underneath the bark of elm. Scolytus multistriatus noun the noun scolytus multistriatus has 1 sense.
Smaller european elm bark beetle, scolytus multistriatus. Response of the elm bark beetle, scolytus multistriatus. The underside of the rear is concave, with a noticeable projection or spine. Collection on porapak q of the aggregation pheromone of scolytus. Spores of dutch elm disease fungus are introduced in. The sexes mate at this time and then the female may bore into the main trunk and lay eggs in her straight galleries. Individually and in pairs the components were slightly attractive. Larvae are small, white grubs found under the bark of dying or dead elms. Dutch elm disease fungus, ophiostoma novoulmi, in elm trees. Biology of the invasive banded elm bark beetle forest service.
Click on each thumbnail to download a powerpointscreen image at 768x512 resolution. Laboratory bioassays two methods and field tests demonstrated synergistic action of the three components. A revisional study of the genus scolytus geoffrey eccoptogaster herbst in north. Aspects of the feeding behavior of scolytus multistriatus. Look for this pdf icon at the top of each page as you search and browse. Sixty years of discovering scolytine and platypodine diversity. Continuing to use this website means you agree to our use of cookies. Beetles of the family scolytidae attack certain individual trees of their host species for oviposition. The smaller european elm bark beetle overwinters as a larva and changes into a pupa and then into an adult in the spring. Observations on the relative effectiveness of scolytus multistriatus marsham and scolytus pygmaeus fabricius coleoptera. Scolytus multistriatus marsham and scolytus scolytus f. Scolytus multistriatus scolmuoverview eppo global database. Aggregation pheromone of the almond bark beetle scolytus.
Five years of trapping efforts for the usda aphis ppq national woodboring bark beetle. Pdf characterization of two nonnative invasive bark beetles. The biodiversity heritage library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community. The smaller european elm bark beetle, scolytus multistriatus, was introduced into north america during the early part of the twentieth century. Scolytus multistriatus is the principal vector of the. Scolytus multistriatus marsham, and the mountain pine beetle, dendroctonus ponderosae hopkins, as hosts for the entomogenous nematode neoaplectana carpocapsae weiser. Semiochemicalmediated flight strategies of two invasive. 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 multistriatus scolytidae dutch elm beetle. Rearing of scolytus multistraiatus marsham scolytidae.
The attractive volatiles in the air around the virgin female of the smaller european elm bark beetle,scolytus multistriatus. It includes several species notorious for destroying trees in the forests. Scolytus is a genus of bark beetles subfamily scolytinae. It was brought to north america through the importation of unbarked elm logs containing live. The identification of the disseminating and inoculating agent or.
Pdf suitability of scolytus multistriatus and dendroctonus. Scolytus multistriatus an overview sciencedirect topics. Host acceptance and larval competition in the banded. The smaller european elm bark beetle scolytus multistriatus is a vector for the fungus dutch elm disease ceratocystis ulmi and uses ulnus spp. Larval feeding may hasten the death of a tree but they seldom are found in. Scolytus intricatus is a pest of broadleaf trees in europe and scolytus morawitzi is a pest of larch in asia. World distribution of scolytus multistriatus scolmu. 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. Scolytus multistriatus noun the noun scolytus multistriatus has 1 sense 1.
Adults become covered in fungal spores upon emergence from brood material and inoculate elms. Fungicides, scolytus multistriatus, hylurgopinus rufipes, dutch elm disease publisher urbana collection biodiversity. Your use of this pdf, the bioone web site, and all posted and associated content. Vanillin and syringaldehyde as attractants for scolytus multistriatus. Mating occurs here and then the female makes galleries in the trunk where she lays eggs. Scolytus multistriatus scolmuphotos eppo global database.
Genus scolytus 1scolg species scolytus multistriatus scolmu. Association of ophiostoma novoulmi with scolytus schevyrewi. After maturation feeding and mating in the twig feeding phase, the females attack the main tree bole where they construct a longitudinal egg gal. Scolytus multistriatus, the european elm bark beetle or smaller european elm bark beetle, is a bark beetle species in the genus scolytus. The smaller european elm bark beetle, scolytus multistriatus, is dark reddish brown, shiny, and about 1 8 inch long. Smaller european elm bark beetle nc state extension. Scolytus multistriatus used as a noun is very rare. Smaller european elm bark beetle, scolytus multistriatus host. Adult feeding can cause small twigs to fall from the trees. General information about scolytus multistriatus scolmu.
Structure of the watersoluble feeding stimulant for scolytus multistriatus. Nov 22, 2019 observations on the relative effectiveness of scolytus multistriatus marsham and scolytus pygmaeus fabricius coleoptera. This site is like a library, use search box in the widget to get ebook that you want. 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. Many woodboring insect pests can be managed with insecticides. This study was initiated to determine whether competitive displacement of s. In table 12 some characteristics of the larval tunnels are given for three scolytid beetles. The smaller european elm bark beetle, scolytus multistriatus, has been the primary vector of the. A sevenstate survey showed that the recently detected invasive asian banded elm bark beetle, scolytus schevyrewi semenov, was abundant in areas of c. The disease occurs sporadically, how ever, in areas of new york state where this species is not known.
Scolytus multistriatus vector of dutch elm disease. 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. After maturation feeding and mating in the twig feeding phase, the females attack the main tree bole where they construct a longitudinal egg gallery. Montana field guide contains a wealth of information about montanas diverse species. Three field studies were conducted to ascertain if pheromones are responsible in part for the aggregating behavior of scolytus multistriatus marsham. Transmission of ded occurs during maturation feeding of adults on twigs of host trees. We do not use these to store personal information about you. Host acceptance and larval competition in the banded scolytus. Structure of the watersoluble feeding stimulant for scolytus. Attraction of elm bark beetles, scolytus multistriatus, to. 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. Several rearing containers for bark beetles have been described in the literature clark and osgood, 1964. The ratio of the components released, particularly heptanol to multistriatin, strongly influenced the number, but not the sex ratio, of beetles that responded.
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