Florida Entomologist (1994) 77, p. 91 (Hall et al.)

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David G. Hall and Omelio Sosa Jr. (1994)
Population levels of Leptodictya tabida (Hemiptera: Tingidae) in Florida sugarcane
Florida Entomologist 77 (1), 91-91
Abstract: Three sugarcane (Saccharum spp.) fields in southern Florida were sampled to assess population densities of the sugarcane lace bug (Leptodictya tabida Herrich-Schaeffer) on leaves during 1990 - 1992. The study began several months after the bug was first discovered in Florida. A mean of 6.3 (SEM=0.51) bugs (all life stages) per leaf was observed over the entire study. Average densities per field per sample date ranged up to 74 bugs (all stages) per leaf. The bug was present from late spring through winter but exhibited a propensity for 2 annual peaks in density, one during late spring/early summer before summer rains and one during the fall after summer rains. Bug populations were very low from late March to May. A general decline in densities of the bug occurred during the study. No parasites, predators or pathogens, of the bug were observed. In a laboratory trial, adults and nymphs survived 3-h exposures to 0° and -5°C, indicating short periods of cold weather may have little impact on population levels of the bug. Among 14 sugarcane varieties, 'CP73-1547' was relatively resistant to the bug while 'CP81-1254' was relatively susceptible based on bug densities per leaf.
Full text of article
Database assignments for author(s): David G. Hall

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
resistance/tolerance/defence of host


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Leptodictya tabida U.S.A. (Hawaii)
Leptodictya tabida Sugarcane (Saccharum officinarum) U.S.A. (SE)