Sampling Techniques for Thrips (Thysanoptera: Thripidae) in Preflowering Tomato

Sampling techniques for thrips (Thysanoptera: Thripidae) were compared in preflowering tomato plants at the Coastal Plain Experiment Station in Tifton, GA, in 2000 and 2003, to determine the most effective method of determining abundance of thrips on tomato foliage early in the growing season. Three...

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Bibliographic Details
Published in:Journal of economic entomology 2004-08, Vol.97 (4), p.1450-1454
Main Authors: Joost, P. Houston, Riley, David G.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Control
Frankliniella fusca
Frankliniella occidentalis
Fundamental and applied biological sciences. Psychology
Generalities
Insect Control - methods
Insecta
Lycopersicon esculentum - growth & development
Phytopathology. Animal pests. Plant and forest protection
Population Density
Protozoa. Invertebrates
sampling
SAMPLING AND BIOSTATISTICS
Sensitivity and Specificity
tomato
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Summary:Sampling techniques for thrips (Thysanoptera: Thripidae) were compared in preflowering tomato plants at the Coastal Plain Experiment Station in Tifton, GA, in 2000 and 2003, to determine the most effective method of determining abundance of thrips on tomato foliage early in the growing season. Three relative sampling techniques, including a standard insect aspirator, a 946-ml beat cup, and an insect vacuum device, were compared for accuracy to an absolute method and to themselves for precision and efficiency of sampling thrips. Thrips counts of all relative sampling methods were highly correlated (R > 0.92) to the absolute method. The aspirator method was the most accurate compared with the absolute sample according to regression analysis in 2000. In 2003, all sampling methods were considered accurate according to Dunnett’s test, but thrips numbers were lower and sample variation was greater than in 2000. In 2000, the beat cup method had the lowest relative variation (RV) or best precision, at 1 and 8 d after transplant (DAT). Only the beat cup method had RV values
ISSN:0022-0493
1938-291X
DOI:10.1603/0022-0493-97.4.1450