Australian plague locust control: registered insecticides

Page last updated: Wednesday, 14 July 2021 - 8:15am

Please note: This content may be out of date and is currently under review.

This article provides information on chemicals registered for the control of the Australian plague locust in Western Australia.

Overview

  • There are many products with different trade names that contain the same active ingredient. This list is not exhaustive and does not imply any specific recommendations of brand names.
  • EC – emulsifiable concentrate, ULV – ultra low volume, CS – capsule suspension, SC – suspension concentrate.
  • Withholding period (WHP) - number of days are given for: (H) - harvest withholding period. For grazing WHPs refer to chemical label and export withholding period (ESI, EGI, EAFI) intervals are listed below in days.
  • Avoid overspraying stock. Refer to labels for withholding grazing periods for domestic markets. For animals destined for export: if overspraying does occur, withhold stock for slaughter until the export slaughter interval (ESI) on clean feed is met. Or the export grazing interval (EGI) on treated crops/pasture. EAFI (export animal feeding interval) is the minimum period that must elapse between application and grazing or harvesting of crop or pasture for feed. It is the least preferred interval option as there is considerable variability in decline of residues in mature pastures.
  • Many products are dangerous to fish and crustaceans. Do not contaminate ponds, rivers or waterways and do not spray flowering crops when bees are foraging.
  • Use of permitted chemicals is restricted to crops for which there are current registrations for other pests. Rates of application must not exceed the label rate for each crop.

Insecticides

Read chemical label before application.

Alpha-cypermethrin*

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 100g/L

various

160 160 160-200 300

7-28(H)
ESI 42
EGI 56

ULV 16g/L

various

1000 1000

1000-1250

1250-2500

21-28(H)
ESI 42
EGI 56

SC 250g/L

various 64 64-80 64-80 -

7-28(H)
ESI 42
EGI 56

Carbaryl

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
SC 500g/L Bugmaster, Carbaryl 1200-1400 1200-1400 - -

3(H) 
EAFI 7 
ESI 7 
EGI 7

Chlorpyrifos

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 500g/L

various

350 ** 350 **

350 canola 
140-300 
lupin/pulse

-

10(H) 
EAFI 0 
ESI 56 
EGI 56

Cypermethrin*

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 200g/L

various

- 170 160–200 -

7-28(H) 
ESI 63

EC 250g/L Apache, Cyrux, Boom Plus, Cypermethrin, Selene - 135 160–200 -

7-28(H) 
ESI 63

EC 260g/L Cypermethrin 260 - 130 120–200 -

7-28(H) 
ESI 63

ULV 40g/L Cypershield - - 1000–1250 -

7-28(H) 
ESI 63

Diazinon

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 800g/L Diazinon, Diazol 700 700 700 -

14(H) 
EAFI 14 
ESI 14 
EGI 28

Fenitrothion

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 1000g/L Fenitronthion, Sumithion 270–400 270–400 - -

14(H) 
EAFI 14 
ESI 14 
EGI 14

ULV 1.23kg/L Sumithion 200–400 200–400 - - 14(H) 
EAFI 14 
ESI 14 
EGI 14

Fipronil

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
SC 200g/L various 6.25 - - 6.25 14(H) 
EAFI 14 
ESI 14 
EGI 21
ULV 3g/L Adonis  420 - - - 14(H) 
EAFI 14 
ESI 14 
EGI 21
ULV 8.5g/L Adonis  150 - - - 14(H) 
EAFI 14 
ESI 14 
EGI 21

Gamma cyhalothrin*

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 150g/L Trojan 20-30 20-30 20-30 -

7-14(H) 
ESI 42 
EGI 56

Lamda-cyhalothrin*

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
CS 250g/L various 24-36 24-36 24-36 -

7-14(H) 
ESI 42 
EGI 56

Maldison

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
EC 500g/L Maldison, Fyfanon 1200-1700 1200-1700 - 1200-1700 3(H)
EC 1150g/L Hy-Mal 750 750 - 750 3(H)
EW 440g/L Fyfanon 440 EW 1400 or 1900 1400 or 1900 - 1400 or 1900 3(H)
ULV 300g/L Fyfanon ULV 700 - - - 3(H)

Biological control

Naturally occurring Australian fungus

Metarhizium anisopliae var. acridum

Chemical formulation and concentration Trade name Pastures (mL/ha) Cereals (mL/ha) Canola or lupin or pulse crops (mL/ha) Forestry or non-crop areas (mL/ha) Harvest and grazing withholding period (days)
SC 150g/1.8kg Green Guard SC 75g of spores/ 150-450L water*** 75g of spores/150-450L water*** 75g of spores/150-450L water*** 75g of spores/150-450L water*** -
ULV 300g/L Green Guard ULV 40-250 40-250 40-250 40-250 -

Table footnotes

* Subject to APVMA permits 10927, 10928 expiring 30 June 2025. Use of these chemicals will be restricted to crops for which there are current registrations for other pests. Rates of application must not exceed the label rate for each crop.

** Incompatible in tank mixes with 2, 4-D Esters, 2, 4-D Amines, MCPA Ester, Dicamba.

*** Should not be tank mixed with any other pesticide

Contact information

Pest and Disease Information Service (PaDIS)
+61 (0)8 9368 3080