Chemical management options

Chemical users should always follow the insecticide label instructions. Permits are approved by the Australian Pesticides and Veterinary Medicines Authority (APVMA), to allow off-label use to manage a pest or situation that is not on the label. Instructions and restrictions on the permit must be applied as well as instructions on the label such as safety directions, plant back periods, withholding periods and other instructions.

Resistance management

Fall armyworm was first detected in northern Australia in January 2020. There is little information about its source, past insecticide exposure or resistance profile. Therefore, it is particularly important for growers to monitor crops frequently and carefully, to detect pests early and treat appropriately.

It is equally important to monitor crops carefully following treatment, to ensure that it was successful, and that there are no further outbreaks. Most insecticides are not selective, so beneficial and other pest insects in a paddock may also be affected. This could result in a flush of other pests following the treatment.

When using insecticides to treat fall armyworm, or any other insect pest, target the most susceptible life stage. This is early instar larvae in armyworms. Rotate insecticide mode of action groups and incorporate other controls where viable options are available.

If insecticide failure occurs, good records will allow growers to examine spraying conditions, equipment set up, and the product and permit used. Record spray failures as it could be an indication that the pest is resistant to a product or insecticide group.

Recent research indicates that some populations of fall armyworm collected in northern Australia in 2020 carry genetic markers for resistance to organophosphates and carbamates. These results give no indication of which products will be effective or which ones might not. Further field testing is required to determine this.

Table 1. Permits issued by the Australian Pesticides and veterinary Medicines Authority for fall armyworm control

Crop Permit numberInsecticide Mode of Action
Almonds PER89259 Chlorantraniliprole 28 – Diamides
Avocado PER89241 Spinetoram 5 – Spinosyns
PER89281 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Bananas PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
Barley PER89371 Emamectin benzoate 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Berry fruit PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
Blueberries PER89281 Chlorantraniliprole 28 – Diamides
PER89285  Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Brassica leafy vegetables PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89285 Emamectin 6 – Avermectins
PER89280 Chlorantraniliprole & Thiamethoxam 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Brassica vegetables PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89280 Chlorantraniliprole & Thiamethoxam 28 – Diamides & 4A - Neonicotinoids
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Bulb onions PER89331 Spinetoram 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Canola PER89241 Spinetoram 5 – Spinosyns
PER89300 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Cherries PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Chickpea PER89870 Spinosad 5 – Spinosyns
PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89300 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89293 Methomyl 1A – Carbamates
Citrus fruits PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
PER89354 Chlorantraniliprole 28 – Diamides
PER89293 Methomyl 1A – Carbamates
Coffee PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
Cotton PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89306 Indoxacarb 22A – Oxadiazines
PER89344 Emamectin 6 – Avermectins
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Cucurbits PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Culinary herbs PER89241 Spinetoram  5 – Spinosyns
PER89353v2 Chlorantraniliprole (parsley) 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Faba bean PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89870 Spinosad 5 – Spinosyns
PER89300 Emamectin 6 – Avermectins
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89293 Methomyl 1A – Carbamates
Field pea PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89300 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
Forage brassicas PER89241 Spinetoram 5 – Spinosyns
Fruiting vegetables PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89280 Chlorantraniliprole & Thiamethoxam 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Grapes

For more information on treatment options for grapes destined for export see AWRI bulletin and "Agrochemicals registered for use in Australian viticulture"
PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Leafy vegetables PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89285 Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89280 Chlorantraniliprole & Thiamethoxam 28 – Diamides & Neonicotinoids 
PER89293 Methomyl 1A – Carbamates
Leeks, spring onions, shallots, galangal PER89284 Spinetoram 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Legume vegetables PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Lentil PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89300 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
Lettuce PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89280 Chlorantraniliprole & Thiamethoxam 28 – Diamides & 4A -  Neonicotinoids 
PER89293 Methomyl 1A – Carbamates
Lupin PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89300 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
Macadamia nuts PER89241 Spinetoram 5 – Spinosyns
PER89278 Indoxacarb 22A – Oxadiazines
PER89353v2 Chlorantraniliprole 28 – Diamides
PER89293 Methomyl 1A – Carbamates
Maize PER89366v2 Chlorantraniliprole 28 – Diamides
PER89390 Spinetoram 5 – Spinosyns
PER89530 Indoxacarb 22A – Oxadiazines
PER89371 Emamectin benzoate 6 – Avermectins
PER89279 Alpha-cypermethrin 3A - Pyrethroids
Zeta-cypermethrin 3A – Pyrethroids
Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Millet PER89390 Spinetoram 5 – Spinosyns
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89403 Alpha-cypermethrin 3A – Pyrethroids
PER89400 Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Mung bean PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
PER89300 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89293 Methomyl 1A – Carbamates
Navy bean PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89300 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
Nursery stock (non-food) – seedlings, tubes & plugs, potted colour, trees and shrubs, foliage plants, palms, grasses, fruiting plants (non-bearing), cut flowers PER89330 Azadirachtin UN - Unknown mode of action
Chlorantraniliprole & Thiamethoxam 28 – Diamides
Cyantraniliprole & Thiamethoxam 28 – Diamides
Emamectin Benzoate 6 – Avermectins
Indoxacarb 22A – Oxadiazines
Methoxyfenozide 18 - Diacylhydrazine
Acetamiprid & Novaluron 4A - Neonicotinoid & 15 - Benzoylurea
Pyrethrins 3A – Pyrethroids
Lambda-cyhalothrin 3A – Pyrethroids
Alpha-cypermethrin 3A – Pyrethroids
Acephate 1B - Organophosphate
Methomyl 1A – Carbamates
PER89293 Methomyl 1A – Carbamates
Oats PER89279 Alpha-cypermethrin 3A - Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Oil Seeds PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Olives PER89327 Spinetoram 5 – Spinosyns
Ornamentals PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
PER89330 Acetamiprid & Novaluron 4A - Neonicotinoid & 15 - Benzoylurea
Azadirachtin UN - Unknown mode of action
Chlorantraniliprole & Thiamethoxam 28 – Diamides
Cyantraniliprole & Thiamethoxam 28 – Diamides
Emamectin Benzoate 6 – Avermectins
Indoxacarb 22A – Oxadiazines
Methoxyfenozide 18 - Diacylhydrazine
Lambda-cyhalothrin 3A – Pyrethroids
Pyrethrins 3A – Pyrethroids
Alpha-cypermethrin 3A – Pyrethroids
Acephate 1B - Organophosphate
Methomyl 1A – Carbamates
PER89293 Methomyl 1A – Carbamates
Pastures PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Peanut PER89279 Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Pigeon pea (refuge crop) PER89311 Indoxacarb 22A – Oxadiazines
Pistachios PER89241 Spinetoram 5 – Spinosyns
Pome fruit PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Popcorn PER89366v2 Chlorantraniliprole 28 – Diamides
PER89390 Spinetoram 5 – Spinosyns
PER89530 Indoxacarb 22A – Oxadiazines
Potatoes PER89259 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Hungry rice, Job’s tears, Teff, Tef PER89390 Spinetoram 5 – Spinosyns
Rice PER89425 Alpha-cypermethrin 3A – Pyrethroids
Carbaryl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Root and tuber vegetables PER89241 Spinetoram 5 – Spinosyns
PER89263v2 Emamectin 6 – Avermectins
PER89353v2 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Rubus species PER89278 Indoxacarb 22A – Oxadiazines
PER89353v2 Chlorantraniliprole 28 – Diamides
Sorghum PER89390 Spinetoram 5 – Spinosyns
PER89371 Emamectin 6 – Avermectins
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Alpha-cypermethrin 3A – Pyrethroids
Zeta-cypermethrin 3A – Pyrethroids
Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Soybean PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89279 Indoxacarb 22A – Oxadiazines
Alpha-cypermethrin 3A – Pyrethroids
Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
PER89293 Methomyl 1A – Carbamates
Sports/recreational turf, lawns PER89290 Chlorantraniliprole 28 – Diamides
PER89293 Methomyl 1A – Carbamates
Stalk and stem vegetables PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89285 Emamectin 6 – Avermectins
PER89278 Indoxacarb  22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Stone fruit PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89278 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Strawberries PER89263v2 Emamectin 6 – Avermectins
PER89278 Indoxacarb 22A – Oxadiazines
PER89353v2 Chlorantraniliprole 28 – Diamides
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl  1A – Carbamates
Sugarcane PER89384 Chlorantraniliprole 28 – Diamides
PER89295 Permethrin 3A – Pyrethroids
Sunflower PER89279 Zeta-cypermethrin 3A – Pyrethroids
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Sweet corn PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89263v2 Emamectin 6 - Avermectins
PER89705v3 Indoxacarb 22A – Oxadiazines
PER89870 Spinosad 5 – Spinosyns
PER89279 Alpha-cypermethrin 3A – Pyrethroids
Zeta-cypermethrin 3A – Pyrethroids
Methomyl 1A – Carbamates
PER89293 Methomyl 1A – Carbamates
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Teosinte PER89366v2 Chlorantraniliprole 28 – Diamides
PER89390 Spinetoram 5 – Spinosyns
PER89530 Indoxacarb 22A – Oxadiazines
Tree nuts (except almonds) PER89353v2 Chlorantraniliprole 28 – Diamides
Triticale PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates
Turf production PER89286 Indoxacarb 22A – Oxadiazines
PER89293 Methomyl 1A – Carbamates
Tropical & Sub-tropical fruits PER89241 Spinetoram 5 – Spinosyns
PER89870 Spinosad 5 – Spinosyns
PER89293 Methomyl 1A – Carbamates
Vetch, azuki/adzuki, cow pea, pigeon pea PER89241 Spinetoram 5 – Spinosyns
PER89259 Chlorantraniliprole 28 – Diamides
PER89300 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
Vetch PER89300 Emamectin 6 – Avermectins
PER89870 Spinosad 5 – Spinosyns
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
Wheat PER89371 Emamectin benzoate 6 – Avermectins
PER89279 Alpha-cypermethrin 3A – Pyrethroids
PER89358 Gamma-cyhalothrin 3A – Pyrethroids
PER89398 Magnet Insect Attractant (with methomyl or thiodicarb) 1A – Carbamates

Table 2 provides a list of products registered for control of ‘Armyworm’, ‘Armyworms’, ‘Caterpillar’ or ‘Lepidopterous caterpillars’. These products are not registered specifically for fall armyworm control. However, these products can be used for fall armyworm control in NSW.  The following information must be considered when deciding to apply any of these products.

Caution: Not all use patterns are registered for each state. Check directions for use on product label for all instructions before use.

Efficacy: the registered uses in the table below are for generic description of 'Armyworm', 'Armyworms', 'Caterpillar' or 'Lepidopterous caterpillars'. Efficacy against fall armyworm (Spodoptera frugiperda) is not known, for further information contact product manufacturer.

The list below is not a definitive list of all products registered for each active constituent as there are many generic products that have copied the use pattern from other products. For full list of registered products go to the APVMA website and search on the Pubcris search engine for the following search terms 'Armyworm', 'Armyworms', 'Caterpillar' or 'Lepidopterous caterpillars'.

Table 2. Products registered for control of armyworms, caterpillars or Lepidopterous caterpillars

InsecticideCrops Product Name
(Registration Number)
Mode of Action
Bacillus thuringiensis var kastaki Vegetables
Fruits
Vines
Oilseeds
Cereal grains
Herbs tobacco
Ornamentals
Forestry
Amenity trees
Turf
Dipel DF Biological Insecticide
     (53431/101018)
11A Bacillus thuringiensis
Spinetoram Ornamentals Success Neo Insecticide
     (64109/101896)
5 Spinosyns
Chlorantraniliprole Lawns
Golf courses
Sports grounds
Commercial and residential
Acelepryn GR Turf Insecticide
     (85185/112584)
28 Diamides
Pyrethrins Fruit
Vegetables
Ornamentals
Indoor plants and ferns
Pyrate Natural Insecticide
     (88596/106803)
Pyzap Insecticide
     (61779/59698
3A Pyrethroids
Esfenvalerate Turf Sumi-Alpha Flex Insecticide
     (53047/109037)
3A Pyrethroids
Beta-cyfluthrin Azaleas
Hibiscus
Pelargoniums
Roses
Turf
Prolong Ultra
     (66483/58069)
Beetlebeta 125 SC Insecticide
     (66448/117786)
3A Pyrethroids
Bifenthrin Ornamental plants Superway Bugz off, mozzies, midges and more residential insecticide
     (84064/109610)
Venom Professional 240 SC Insecticide
     (84018/117677)
3A Pyrethroids
Maldison Ornamentals Hy-Mal Insecticide
     (48992/62947)
1B Organophosphates
Trichlorfon Cereals
Legumes
Maize
Pasture
Small grains
Sugarcane
Tyranex 500 Insecticide
     (87790/119261)
AC Tipster 500 SL
    (88049/120135)
1B Organophosphates
Diazinon Cereals
Pastures
Various vegetable crops
Barmac Diazinon Insecticide
     (50007/57614)
AC Dizzy 800 Insecticide
     (88946/122991)
1B Organophosphates
Chlorpyrifos Cereals
Hops
Pasture and forage crops
Sorghum
Sugarcane
Cotton
Bananas
Conquest Chlorpyrifos 500 Insecticide
     (55897/121214)
Task 500 EC Insecticide
     (88651/121907)
1B Organophosphates
Dimethoate Ornamental shrubs
Ornamental farm and forest Trees
Katar Insecticide
     (85466/113355)
1B Organophosphates
Methomyl Pastures
Sorghum
Sweet corn
Maize
Barley
Wheat
Oats
Huilong Methomyl 225 Insecticide
     (88438/121325)
Thanos 225 Insecticide
     (89097/123574)
1A Carbamates
Carbaryl Raspberries Kendon Carbaryl 500SC Insecticide
     (69359/106803)
1A Carbamates