How to Manage Pests

Degree-days: Lygus Bug in Strawberries

Use this program to run a model of lygus bug in strawberries, recommended by UC Cooperative Extension. In calculating degree-days, the program uses temperatures from the UC IPM weather database, a file you supply, or data you enter online.

Lygus Bug in Strawberries

Lower threshold: 54°F
Calculation/upper cutoff method: single sine/horizontal
Biofix: The first treatment biofix is the date you find the first adult lygus bug in the field after April. The biofix for the second treatment is the date you find the first instar nymph in strawberries in March.
Additional information on using this model: Pest Management Guideline

Specify source of temperature data

Select the source of temperatures to be used to calculate degree-days. You may also use your own maximum and minimum temperatures and look up approximate daily degree-day values in a reference degree-day table for lygus bug, then total them yourself.

Select from stations in which California county?

Include active stations only

Set time period for running model

Biofix (start date):		Biofix (start date): The first treatment biofix is the date you find the first adult lygus bug in the field after April. The biofix for the second treatment is the date you find the first instar nymph in strawberries in March.
End date:

Text file (comma or tab delimited) format

Top of page

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance. web template revised: May 23, 2013 Contact webmaster.