Plant diseases and pests
Pests and diseases
Unwanted seeds in the post
Unsolicited seed packets have been sent to Northern Territory (NT) properties.
Imported seeds are a significant biosecurity risk.
If you receive unwanted seeds in the post, you must report it.
Fall armyworm in the NT
Fall armyworm has been detected in the NT.
Find out more about fall armyworm.
If you notice an unusual disease on your plants, or need advice about how to control it, contact Plant Pathology.
If you notice an unusual insect on your plants or need advice about control, contact Entomology.
They provide a free identification and advice service to growers and the general public.
How to submit a plant or pest for identification
You can send a plant or insect sample to get it identified in three ways.
- by courier
- by mail
- by hand.
Go to the contacts page for the address for courier and mail deliveries.
You can deliver a sample by hand to the following place:
Berrimah Agricultural Laboratory (BAL) building reception
You can leave your specimen in the specially-provided plastic specimen receiving box at reception.
If you want to talk to someone about your specimen or hand it over in person, use the phone at reception and dial 92258 or 92228 (if you have an insect) or 92261 (if you have a plant sample) and a staff member will come and receive your specimen.
For information on how to prepare plant specimens for disease diagnosis read the Agnote How to Submit Plant Specimens for Disease Diagnosis .
Search the insect database
You can search the NT insects database to identify insect pests and find out the damage they cause.
You can search on various criteria including insect name, host plant or type of damage.
You can print fact sheets containing images and information about an insect.
For more information about plant pests and diseases, and how to recognise and treat them, go to the Plant Health Australia website.
Fruit and vegetables
The following links contain information on common or agriculturally important pests and diseases of fruit and vegetable crops in the NT.
- Biology and Pest Management of Spider Mites
- Blossom End Rot
- Common Insect Pests of Cucurbits [
- Control of Melon Thrips, Thrips palmi
- Longicorn Borer in Fruit Trees
- Mango Anthracnose
- Mangoes - Bacterial Black Spot
- Mango Leafhopper
- Mango scab and its control
- Mediterranean Fruit Fly
- Mites of Horticultural Crops in the Northern Territory
- Mosaic viruses of curcubits
- Peanuts- common diseases in the top end
- Poinsettia Whitefly
- Redbanded thrips on Fruit Trees
- Tomato Leaf Roll
Ornamentals and natives
The following links contain information on interesting and common pests and diseases of both ornamental and native plants. These may be of interest to the nursery and garden industry, amenity horticulture and general public.
- Cup Moths (Doratifera spp.)
- Fusarium wilt of Rosewood
- Monitoring and Control of Ginger Ants in Nurseries
- Mycosphaerella Scaevola
- Orchid diseases in the Northern Territory
- Teak Leaf Rust
The following links contain information commonly requested by home gardeners on plant pests and diseases.
Last updated: 04 September 2020
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