Numbers of Scolytus multistriatus (Coleoptera: Scolytidae) Caught on Multilure-Baited Sticky Traps Increase with Methoxychlor1

1984 ◽  
Vol 77 (5) ◽  
pp. 1251-1253
Author(s):  
Jack H. Barger ◽  
Roy A. Cuthbert ◽  
William N. Cannon
Keyword(s):  
Scolytus Multistriatus ◽  
Sticky Traps

TWIG FEEDING BY SCOLYTUS MULTISTRIATUS (COLEOPTERA: SCOLYTIDAE): WITHIN-TREE DISTRIBUTION AND USE FOR ASSESSMENT OF MASS TRAPPING

1984 ◽  
Vol 116 (7) ◽  
pp. 1025-1032 ◽  
Author(s):  
Robert J. Rabaglia ◽  
Gerald N. Lanier
Keyword(s):  
Sampling Method ◽  
Population Trends ◽  
Dutch Elm Disease ◽  
Scolytus Multistriatus ◽  
Mass Trapping ◽  
Sticky Traps ◽  
Feeding Sites ◽  
Tree Distribution ◽  
Disease Rates ◽  
Natural Pheromone

AbstractTwig-feeding injuries by S. multistriatus in juvenile white (or American) elms occurred primarily (61%) in the upper 1/3 of the crowns. Preferred feeding sites were crotches formed by the previous year's and current year's twig growth (both spring and summer) and by leaf petioles from current year's twig growth (summer only). An index of twig feeding appeared to reflect S. multistriatus population trends and was closely correlated with Dutch elm disease rates in Syracuse, N.Y., from 1978 to 1982. Twig-feeding indices and catches on sticky traps baited with S. multistriatus pheromone were generally correlated, but disparate when competing natural pheromone sources were abundant. Twig sampling indicated that S. multistriatus populations and disease rates were reduced by mass-trapping and trap-tree techniques. The twig-sampling method presented appears to be useful in predicting Dutch elm disease rates and assessing the effectiveness of measures to control its beetle vector.

scholarly journals A simple standardized protocol to evaluate the reliability of seed rain estimates

2020 ◽  
pp. 1-6
Author(s):  
André J. Arruda ◽  
Fernando A.O. Silveira ◽  
Elise Buisson
Keyword(s):  
Restoration Ecology ◽  
Community Dynamics ◽  
Size Dependence ◽  
Seed Rain ◽  
Proof Of Concept ◽  
Sticky Traps ◽  
Standardized Protocol ◽  
Funnel Trap ◽  
Seed Trap ◽  
Cross Site

Abstract Seed dispersal has key implications for community dynamics and restoration ecology. However, estimating seed rain (the number and diversity of seeds arriving in a given area) is challenging, and the lack of standardization in measurement prevents cross-site comparisons. Seed trap effectiveness and accuracy of seed sorting methods are key components of seed rain estimates in need of standardization. We propose and describe a standardized protocol for evaluating the effectiveness of two seed trap types (sticky and funnel traps) and the accuracy of a seed sorting method. We used widely available seeds (arugula, quinoa, sesame and sunflower) to produce a gradient of seed size, weight and colour. Proof-of-concept was tested in a tropical grassland, where traps were set for 30 days. Our results suggest that we underestimate dispersal of seeds with less than 2 mm width that can be easily mistaken for debris and soil particles or that fail to adhere to sticky traps. Seeds on sticky traps may be more vulnerable to removal by wind and rain, whereas seeds in funnel traps are more susceptible to decay. We found no evidence of observer bias on seed sorting for funnel trap samples. However, accuracy on seed sorting for funnel trap samples tended to decline for seeds with less than 2 mm width, suggesting a size-dependence in seed retrieval success. Our standardized protocol addressing trap effectiveness and seed sorting methods will increase the reliability of data obtained in seed rain studies and allow more reliable comparisons between datasets.

FACTORS INFLUENCING THE MORTALITY OF SCOLYTUS MULTISTRIATUS (COLEOPTERA: SCOLYTIDAE) IN ELM BRANCHES IN CALIFORNIA

1985 ◽  
Vol 117 (7) ◽  
pp. 819-828 ◽  
Author(s):  
Ann E. Hajek ◽  
Donald L. Dahlsten
Keyword(s):  
Small Diameter ◽  
Sampling Period ◽  
Scolytus Multistriatus ◽  
Bark Thickness ◽  
Branch Diameter ◽  
Factors Influencing ◽  
Strong Positive Relationship ◽  
Egg Density ◽  
Ulmus Procera ◽  
Highly Correlated

AbstractPopulations of Scolytus multistriatus (Marsham) from two areas of California were sampled in 1979 to investigate various factors influencing mortality. English-elm bolts (Ulmus procera Salisb.) ranging between 2.0 and 12.9 cm in diameter yielded mean mortalities from 49.1 to 86.0%. Mortality was highly correlated with egg density for branch samples from 7.0 to 12.9 cm in diameter. The minimum acceptable elm-branch diameter (2.8 cm) was attacked only during the first sampling period (mid-May to mid-June). Branch diameter, and therefore bark thickness, demonstrated a strong positive relationship with the density of S. multistriatus eggs, attacks, gallery lengths, and emerged adults. Gallery length density was positively correlated with attack density. At low attack densities in small-diameter branches, mean gallery lengths were shorter.

Scolytus multistriatus. [Distribution map].

1975 ◽  
Author(s):  
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Bark Beetle ◽  
Host Plants ◽  
Dutch Elm Disease ◽  
Scolytus Multistriatus ◽  
Distribution Map ◽  
Elm Bark Beetle ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Scolytus multistriatus (Marsham) (Col., Scolytidae) (Smaller Elm Bark-beetle) (A vector of Dutch elm disease). Host Plants: Ulmus spp. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Belgium, Britain, Bulgaria, Corsica, Czechoslovakia, France, Germany, Greece, Hungary, Italy, Netherlands, Poland, Portugal, Rumania, Spain, Switzerland, Yugoslavia, ASIA (excl. USSR), Iran, USSR, AFRICA, Algeria, Egypt, NORTH AMERICA, Canada, U.S.A.

Comparison of sticky-traps and CDC light-traps for sampling phlebotomine sandflies entering houses in Venezuela

1996 ◽  
Vol 10 (3) ◽  
pp. 295-298 ◽  
Author(s):  
A. S. WHEELER ◽  
M. D. FELICIANGELI ◽  
R. D. WARD ◽  
R. D. C. MAINGON
Keyword(s):  
Light Traps ◽  
Sticky Traps ◽  
Phlebotomine Sandflies
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