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CI Fly Drought Stress Biological Control Data Archive.csv (38.21 kB)
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Data from: Host plant water deficit stress impairs reproduction and development of the galling fly (Parafreutreta regalis), a biological control agent of Cape-ivy (Delairea odorata)

dataset
posted on 2024-02-16, 18:19 authored by Patrick MoranPatrick Moran

Data from choice and no-choice tests associated with the paper cited below. Drought leading to water deficit stress is known to reduce performance of galling insects. The shoot tip-galling fly Parafreutreta regalis has been released for biological control of Cape-ivy (Delairea odorata) in California. Lack of moisture during the dry season causes wilting of Cape-ivy shoots, and subsequent reduced host quantity and quality could influence the fly’s ability to multiply and establish. We imposed water deficit stress on potted Cape-ivy plants, then measured the plant’s and insect’s response to water deficit compared to fully-watered plants. Water deficit stress was imposed during female oviposition (short-term), gall development (long-term), or full insect life cycle (long-term). Plants subjected to long-term water deficit showed declines in shoot growth, leaf area, and total biomass. In choice tests, 72% fewer galls were found on water deficit stressed plants, but there was no difference in the numbers of insects per gall. In no-choice tests, long-term water deficit reduced the number and size of galls by up to 51% and 39%, respectively, and puparia inside the galls were up to 35% smaller. Long-term water deficit also increased the time required for the insect to complete its life cycle (egg to adult) by about 10 days, and up to 80% fewer adults emerged, decreasing the fly’s rate of increase by up to five-fold. Our study shows that P. regalis will oviposit and develop successfully on water deficit-stressed plants, but declines in female preference, insect development and abundance could inhibit fly field establishment and/or population growth under climatic drought conditions.


Resources in this dataset:

  • Resource Title: Data from: Host plant water deficit stress impairs reproduction and development of the galling fly (Parafreutreta regalis), a biological control agent of Cape-ivy (Delairea odorata).

    File Name: CI Fly Drought Stress Biological Control Data Archive.csv

    Resource Description: Tabular data for all choice and no-choice experiments

    Resource Software Recommended: MS Excel,url: https://www.microsoft.com/en-us/microsoft-365?ms.url=office365com&rtc=1


  • Resource Title: Data dictionary text file describing column headings in the csv data file..

    File Name: Data Dictionary for Archiving Feb17-2021.txt

    Resource Description: Data dictionary text file describing column headings in the csv file

    Resource Software Recommended: MS Word,url: https://www.microsoft.com/en-us/microsoft-365?ms.url=office365com&rtc=1

Funding

USDA-ARS: 2030-22000-031-00D

History

Data contact name

Moran, Patrick J.

Data contact email

Patrick.Moran@usda.gov

Publisher

Ag Data Commons

Intended use

To verify data associated with peer-reviewed paper cited below.

Use limitations

None

Temporal Extent Start Date

2020-02-01

Temporal Extent End Date

2020-04-15

Frequency

  • irregular

Theme

  • Not specified

Geographic Coverage

{"type":"FeatureCollection","features":[{"geometry":{"type":"Point","coordinates":[-122.30562269746,37.88634597527]},"type":"Feature","properties":{}}]}

Geographic location - description

USDA-ARS Western Regional Research Center, 800 Buchanan St., Albany, CA 94710

ISO Topic Category

  • biota

National Agricultural Library Thesaurus terms

host plants; water stress; biological control agents; Delairea odorata; drought; insects; biological control; California; dry season; wilting; shoots; females; oviposition; leaf area; biomass; galls; puparium; eggs; adults; insect development; population growth; Diptera; weed control

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 304

Primary article PubAg Handle

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Moran, Patrick J. (2021). Data from: Host plant water deficit stress impairs reproduction and development of the galling fly (Parafreutreta regalis), a biological control agent of Cape-ivy (Delairea odorata). Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1522573