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Hangzhou Foods
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NY9406 Downy Mildew on seedlings - factsheet
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Parsley Disease Handbook
Parsnip Variety Trials
Phytochemical composition of food
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Reclaimed water use in Victoria
Recycled Water Quality - Lettuce
Sclerotina - Lettuce Conference 2002
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Summer Root Rot in Parsley
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Vegetable Disease Program
Vegetable Diseases in Australia
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VG00013 Leek Diseases
VG00016 Environmental Performance
VG00026 IPM Eggplant & Cucumber
VG00031 Peas - downy mildew & collar rot
VG00031 Peas - Downy Mildew - metalaxyl resistance
VG00034 Capsicum & Chillies - weed control
VG00044 Clubroot - Applicator design
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VG00044 Clubroot - Nutritional amendments
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VG00044 Clubroot – Introduction
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VG00044 Clubroot – Prevention & Hygiene
VG00044 Clubroot – Understanding Risk
VG00044 Total Clubroot Management
VG00048 Alternate fungicides for sclerotinia control
VG00048 Brassica green manure conference paper 2004
VG00048 Brassica Green Manure Update 16
VG00048 Brassica Green Manure Update 18
VG00048 Diallyl Disulphide - DADS - trials
VG00048 Lettuce - Sclerotinia biocontrol
VG00048 Lettuce Sclerotina - Biocontrols
VG00058 Pea - Collar Rot
VG00069 Cucumber & Capsicum diseases
VG00084 Beetroot for Processing
VG01045 Bunching Vegetables - disease control
VG01049 Compost - Benefits
VG01049 Compost - Choosing a Supplier
VG01049 Compost - Getting Started
VG01049 Compost - Introduction
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VG01049 Safe Use of Poultry Litter
VG01082 Broccoli Adjuvant Poster
VG01082 Broccoli Head Rot
VG01096 Article - White Rot research
VG01096 Integrated Control of Onion White Rot
VG01096 Poster - Alternative fungicides
VG01096 Poster - Diallyl Disulphide - DADS
VG01096 Poster - Trichoderma biocontrol
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VG01096 White Rot - Spring Onions
VG02020 Capsicum - Sudden Wilt
VG02035 Capsicum - virus resistance
VG02105 Vegetable Seed Dressing Review
VG02118 White Blister
VG03003 Lettuce - Varnish Spot
VG03092 Lettuce - Shelf Life
VG03100 Retailing Vegetables - Broccolini®
VG04010 Maximising returns from water
VG04012 Hydroponic lettuce - root rot
VG04013 Brassica White Blister
VG04013 White Blister - Control Strategies
VG04013 White Blister - Race ID
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VG04013 White Blister - Symptoms
VG04013 White Blister - Workshop Notes
VG04014 Better Brassica
VG04014 better brassica - roadshow model
VG04014 better brassica - workshop notes
VG04014 Clubroot Guidebook
VG04014 Clubroot Poster
VG04015 Benchmarking water use
VG04016 Celery leaf blight - Poster
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VG04019 Nitrate & Nitrite in Leafy Veg
VG04021 Vegetable Seed Treatment
VG04025 Parsley Root Rot
VG04059 Diagnostic test kits
VG04061 White Blister - alternative controls
VG04061 White Blister - Workshop 2007
VG04062 Beetroot Study Tour
VG04067 IPM - Lettuce Aphid
VG05007 Onion White Rot - post plant fungicides
VG05008 IPM - Cultural Controls
VG05014 IPM - Native vegetation pt1
VG05044 IPM - Consultants Survey
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VG05044 IPM - Lettuce Aphid Trials
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VG05044 IPM - Predatory Mites
VG05044 IPM - Project Summary
VG05045 Parsnip Canker
VG05051 Climate Change
VG05053 Rhubarb Viruses
VG05068 Baby Leaf Salad Crops
VG05073 Mechanical Harvesting
VG05090 Green Bean - Sclerotinia
VG05090 Rhizoctonia Groups
VG06014 Revegetation for thrip control
VG06024 IPM - Native vegetation pt2
VG06046 Parsley Root Rot
VG06047 Celery - Septoria Predictive Model
VG06066 LOTE Grower Communications
VG06086 IPM - Potential & Requirements
VG06087 IPM - Lettuce Aphid
VG06087 IPM - Toxicity testing
VG06088 IPM - Lettuce Aphid trials
VG06092 Pathogens - Gap Analysis
VG06092 Pathogens of Importance - poster
VG06140 Beetroot - colour quality
VG07010 Systemic aquired resistance
VG07015 Curcubit field guide
VG07070 Conference Notes 2008
VG07070 Foliar diseases
VG07070 Nitrogen & lettuce diseases
VG07070 Predicting Downy Mildew on Lettuce
VG07070 White Blister - Chinese Cabbage
VG07070 White Blister - Cultural Controls
VG07070 Workshop Notes - 2008
VG07070 Workshop Notes - 2010
VG07125 IPM - soilborne diseases
VG07126 Biofumigation oils for white rot
VG07126 New approaches to sclerotina
VG07127 White Blister - Alternative Controls
VG08020 Optimising water & nutrient use
VG08026 Pythium - field day
VG08026 Pythium - workshop 2010
VG08026 Pythium control strategies - overview
VG08107 - Carbon Footprint - workshop
VG08107 - Carbon Footprint part 1 - definitions
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VG08107 - Carbon Footprint part 3 - calculators
VG08107 - Carbon Footprint part 4 - estimate
VG08107 - Carbon Footprint part 5 - users
VG08107 - Carbon Footprint part 6 - options
VG08426 Parsnip - Pythium Notes 2010
VG09086 Evaluation of Vegetable Washing
VG09159 Grower Study Tour- Spring Onions & Radish
VG96015 Carrot Crown Rot
VG96015 Carrot Defects - Poster
VG97042 Export - Burdock, Daikon and Shallots
VG97051 Pea - ascochyta rot
VG97064 Greenhouse Tomato and Capsicum
VG97084 Green Bean - white rot
VG97103 Celery Mosaic Virus
VG98011 Carrot - Cavity Spot
VG98048 Lettuce - Adapting to Change
VG98083 Lettuce - rots & browning
VG98085 GM Brassicas
VG98093 Microbial hazards - review
VG98093 Safe vegetable production
VG99005 Quality wash water
VG99008 Clubroot - rapid test
VG99016 Compost and Vegetable Production
VG99030 Globe Artichokes - value adding
VG99054 Onions - Theraputic Compounds
VG99057 Soil Health Indicators
VG99070 IPM - Celery
Victorian soil health
VN05010 Folicur - alternative carriers
VN05010 Onion White Rot - Fungicides
VN05010 Onion White Rot - summary
VX00012 Metalaxyl breakdown
VX99004 Clean & Safe Fresh Vegetables
Whitefly & Viruses
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VG06024 IPM - Native vegetation pt2

Native vegetation near vegetable crops is significant in the fight against pests, as it can harbour the natural predators required to manage the pest populations.

Vegetable growers can make native vegetation an important part of their disease and pest management.

Native vegetation is known to help with pest management in two ways:

  1. Replacing weeds that harbour pests and diseases of vegetable crops with native plants that do not host these pests.

  2. Maintaining remnant vegetation that is known to attract and provide refuge for natural enemies that prey on insect pests.

Before native vegetation can become part of an integrated pest management and conservation strategy, the risks need to be identified and management strategies developed.

Major risks are any actions that increase the risk of plant pests including escalating minor pests to major pests and increasing the frequency and severity of pest outbreaks.

The following report examines the role of native vegetation in plant pest control and considers the most common questions about native vegetation :

  • WHY should I maintain or create areas of native vegetation and how will it benefit me ?

  • HOW do I know it won’t add to my pest problems ?

The project findings suggest that numerous native species can host beneficial insects that are valuable in IPM pest control systems.

Remnant native vegetation on-farm may allow natural enemies to respond more quickly to pests in crops.

Author : Nancy Schellhorn

VG06024 Native vegetation
to enhance biopersity, beneficial insects and pest control in horticulture systems PART 2 - 2008
Download 128kb

Key Findings :

  • The study revealed that:

    • Of the 110 arthropod pests of vegetable crops, less than half are ranked as important and less than 20 are perceived as difficult to control.

    • There are no generalizations about what makes a pest of vegetable crops, for example, exotic versus native pests, their taxonomic group (i.e. beetles vs moths), and range of hosts.

  • By cross referencing the 110 pests with 453 host feeding records on native plants, risk estimates were generated for plant families used in revegetation programs.

    Approximately 37 native plant families are low risk for pest management in vegetable production and good for revegetation.

    These include native saltbush species including :

    • Fragrant saltbush (Rhagodia parabolica)
      Rhagodia parabolica, the fragrant saltbush

    • Ruby saltbush (Enchylaena tomentosa)
      Enchylaena tomentosa, the ruby saltbush

  • Edge habitat between native remnant vegetation and crops supports many species of insect predators and there is a net migration from remnant vegetation to crops.

    This is particularly true for the edge habitat between riparian remnant vegetation and crops.

    This trend was present in both landscapes, but significant in the landscapes with a high percentage of remnant vegetation.

  • Some pest species also like the riparian remnant vegetation.

    This is particularly true for jassids that use the exotic grass that is abundant around field and remnant edges.

  • The majority of growers were interested in the concept of using native vegetation for pest management whether they already had native vegetation on their farm or not.

  • Most growers have an average or high regard for native vegetation for a range of benefits including erosion prevention and windbreaks.

    Growers also recognise drawbacks such as it the demand for additional water and land area.

  • We can predict the time to colonisation from a refuge to a crop of a biological control agent.

SEE ALSO :

VG005014  Native Vegetation and Pest Control - part 1 (2006)

Download 306 kb  VegeNote : Native Vegetation and Pest Control (2008)

Acknowledgements :

The author would like to acknowledge and thank:

Anna Marcora for her exceptional technical support, leadership and management of the field component of the project.

Lynita Howie, Barbara Clifford, and Andrew Hulthen for assisting with sorting of Malaise trap samples and contributing to the data base.

Felix Bianchi for completing the database, and Mulgowie Farms (Andrew Johanson and The Emericks) and DPI&F Gatton Research Station for allowing the team to conduct Malaise trap surveys on their property.

Bronwyn Walsh, Samantha Hermitage and Dave Carey all of QLD DPI&F

The author would also like to thank the growers and industry representatives for volunteering their time to participate in the survey and discuss project ideas.

This project has been facilitated by the C.S.I.R.O., the QLD State Government, Horticulture Australia Limited (HAL) in partnership with AUSVEG through the National Vegetable Research and Development Levy.

The Australian Government provides matched funding for all HAL’s R&D activities.


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