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Research and IPM

Interactive Tools and Models: Citrus Thrips Scarring Prediction Model—Testing Phase*
San Joaquin Valley, California

This model, validated so far only in Tulare County, California, is a first step in developing a reliable prediction of citrus thrips damage with advance warning. It estimates the degree of first scarring of Navel oranges by citrus thrips, Scirtothrips citri, from weather data that accumulates prior to petal fall.

*Validation of this model has been limited, and you are encouraged to test the model to see if it is helpful to you under your field conditions. You can also help us to test and improve the model. Disclaimer: The University of California and the authors of this model do not assume any responsibility and cannot be held liable for any loss that may result from using predictions from this model.

Estimate scarring using your weather data file

Remember to supply maximum and minimum temperatures from January 29 through the end of bloom.

User file:    Text file (comma or tab delimited) format

Specify temperature units in file:   Fahrenheit     Celsius

Specify data delimiter in file:   Comma     Tab

Specify position of data values in file records (from left)
Date     Minimum Temperature     Maximum Temperature

   


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2004 The Regents of the University of California. All rights reserved.

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Agriculture and Natural Resources, University of California

Accessibility   /MODELS/CTDAMAGE/ctfile1.html revised: February 27, 2004. Contact webmaster.