Investigating Abiotic Factors Influencing the Abundance of Frankliniella Bispinosa in Blueberries, and the Development o...

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Material Information

Title:
Investigating Abiotic Factors Influencing the Abundance of Frankliniella Bispinosa in Blueberries, and the Development of a Predictive Risk Model for Thrips Damage in North-Central Florida
Physical Description:
1 online resource (88 p.)
Language:
english
Creator:
Garrick, Tamika A
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Master's ( M.S.)
Degree Grantor:
University of Florida
Degree Disciplines:
Entomology and Nematology
Committee Chair:
LIBURD,OSCAR EMANUEL
Committee Co-Chair:
FRAISSE,CLYDE WILLIAM
Committee Members:
FUNDERBURK,JOSEPH E

Subjects

Subjects / Keywords:
bispinosa -- frankliniella -- humidity -- ipm -- mixed-cropping -- modelling -- thrips
Entomology and Nematology -- Dissertations, Academic -- UF
Genre:
Entomology and Nematology thesis, M.S.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
The usefulness of mixed cropping as a potential IPM management tool for the control of Florida flower thrips, Frankliniella bispinosa Morgan was investigated in  southern highbush (SHB) (var. Emerald and Jewel) and rabbiteye (var. Powderblue and Brightwell) blueberries at two sites. At each site, a mixed plot of the two varieties was compared with single stands of each variety. The mixed plots were not effective at reducing flower thrips populations in both SHB and rabbiteye varieties. Relative humidity has an effect on the time taken for larvae of F. bispinosa and western flower thrips, F. occidentalis Fitch to hatch. Frankliniella occidentalis generally emerged later than F. bispinosa and there is an increase in time with a decrease in relative humidity. Frankliniella bispinosa requires a higher humidity than F. occidentalis to reproduce; and has a higher reproductive capacity than F. occidentalis when compared in this study. The effectiveness of a temperature-based predictive model developed to forecast thrips abundance was tested on thrips population in SHB blueberries in 2012 and 2013. The output of the model was not always correlated with field observations; therefore, model improvements to include RH and crop phenology are necessary before the model can be recommended. Establishment of a colony of F. bispinosa, is necessary to increase our understanding of its biology and facilitate greater research. Establishment and maintenance of colonies require a constant temperature of 23°C at 75±10% RH. The overall study contributed to a better understanding of thrips ecology and management in southern blueberry production
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Tamika A Garrick.
Thesis:
Thesis (M.S.)--University of Florida, 2013.
Local:
Adviser: LIBURD,OSCAR EMANUEL.
Local:
Co-adviser: FRAISSE,CLYDE WILLIAM.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2014-12-31

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2013
System ID:
UFE0046409:00001