Technical Information

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Licensed under Creative Commons Attribution 3.0 Australia. © Crown in right of the State of South Australia.

Technical Information

How are diseases and invertebrate pests affecting our crops?

This document describes the sources of information, advice, methods, indicators and data processing procedures used to develop the reports. Reliability of data, as well as metadata attributes, are also described.

State NRM Plan Guiding Target:

Limit the establishment of pests and diseases and reduce the impact of existing pests State NRM Plan Representative Measure:

Number of detections of weeds, pests and disease incursions, and trends in their distribution and abundance Data collection period:

1. 2009 - 2013 number of priority (declared under the Plant Health Act, Plant Quarantine Standard, and/or part of the National Plant Health Surveillance Program) diseases and invertebrate pests which affect production plant health

2. 1989 – 2013, Fruit fly outbreaks.

Expected frequency of reporting:

Annual Data sources:

1. The priority (declared under the Plant Health Act, or part of the National Plant Health Surveillance Program) diseases and invertebrate pests that affect production plant health which are present in South Australia was provided by Biosecurity SA.

2. The number of fruit fly detections per year was provided by Biosecurity SA.

Indicators used:

1. Number of priority (declared under the Plant Health Act, Plant Quarantine Standard, and/or part of the National Plant Health Surveillance Program) diseases and invertebrate pests which affect production plant health

2. Long-term trends in fruit fly outbreaks.

Methods of data collection and processing:

Data for this report were obtained from Biosecurity SA as a summary or part of surveillance reports. Data were summarised by the number of priority diseases which have had a recorded presence in South Australia by financial year. Priority diseases include those which are surveyed as part of the National Plant Health Surveillance Program and the South Australian Plant Health Act Quarantine Standard.

The number of fruit fly outbreaks were obtained from Biosecurity SA in a spreadsheet summarising the number of outbreaks per year. These data were graphed as the number of outbreaks per financial year.

Future reporting measures:

Future reports may highlight different diseases or invertebrate pests depending on current issues. For example, rather than presenting fruit fly outbreaks, properties affected by branched broomrape could be included.

The following government agencies contributed to this report:

The Department of Environment, Water and Natural Resources (DEWNR) and Department of Primary Industries and Regions SA (PIRSA)/ Biosecurity SA.

The following non-government agencies contributed to this report:

None.

Key stakeholders:

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DEWNR, PIRSA, Biosecurity SA, NRM Boards, Agriculture industry and the public.

Information reliability scoring:

Information is scored for reliability based on average scores given for information currency and applicability, and its level of spatial representation (Tables 1–3).

Table 1. Information currency Reliability Criteria

5 Information up to 3 years old 4 Information up to 5 years old 3 Information up to 7 years old 2 Information up to 10 years old 1 Information >10 years old

Table 2. Applicability of the information Reliability Criteria

5 All data based on direct indicators of the measure 4 Most data based on direct indicators of the measure 3 Most data based on indirect indicators of the measure 2 All data based on indirect indicators of the measure 1 Data are based on expert opinion of the measure

Table 3. Spatial representation of information (sampling design) Reliability Criteria

5 Information is collected from across the whole region/state (or whole distribution of asset within the region/state) using a stratified sampling design

4 Information is collected from across the whole region/state (or whole distribution of asset within the region/state) using a sampling design that is not stratified

3 Information is collected from an area that represents less than half the spatial distribution of the asset within the region/state

2 Information is collected from an area that represents less than 25% the spatial distribution of the asset within the region/state

1 Information is collected from an area that represents less than 5% the spatial distribution of the asset within the region/state or spatial representation unknown

Based on tables 1, 2 & 3 above, respectively, the information relating to the condition presented in this report has a reliability score of (5+5+4)/3 = 4.67, rounded to 5 (Excellent).

This report card is linked to the following report cards/snapshots:

1. What are the distribution and abundance of pest animals?

2. What are the distribution and abundance of weeds?

3. What are the distribution and abundance of aquatic pests?

4. How are diseases affecting our aquatic species?

5. How are diseases affecting our native plants and animals?

6. How are diseases affecting our livestock?

Metadata description:

Project/Dataset name: South Australia Occurrence of priority diseases and invertebrate pests which affect plant health.

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Data provided 1/3/2014

Abstract/description Data on the number of priority diseases which had been detected/considered present in South Australia and the number of fruit fly outbreaks per year were provided by Biosecurity SA.

Data types Spreadsheets and reports

Organisation/ DEWNR business area that

sponsors/holds/manages the data

PIRSA, Biosecurity SA

Date range Date: 1/7/2008. Last update: 30/6/2013

Study area South Australia

Data format Excel file and pdf reports

Data distribution rules Licensed under Creative Commons Attribution 3.0 Australia Is the dataset source data (raw),

value-add data

(analysed/summarised) or final indicator/score data?

Value add

Photo credit details:

Title: Fruit Fly Owner: Biosecurity SA

Scientific literature referred to in the report:

Australian Bureau of Statistics (2014), 7503.0 - Value of Agricultural Commodities Produced, Australia, 2012-13. Australia.

Biosecuity SA (PIRSA) (2013) National Plant Health Surveillance Program, Final Report 2012 – 13. Government of South Australia, Adelaide.

Henry, K. (2010) The Australia Plague Locust Factsheet. Government of South Australia, Department of Primary Industries and Resources, (SARDI). South Australia.

Phylloxera and Grape Industry Board of South Australia website.

Heaven, D. (2006) Important information on Fruit fly Factsheet. Government of South Australia, Department of Primary Industries and Resources, South Australia.

Government of South Australia (2009) Plant Health Act (Version 17.6.2013). South Australia, Adelaide.

South Australia (2013) Plant Quarantine Standard (Version 10.0). Government of South Australia - Biosecurity SA, Adelaide.