Version 2 Date January 2020 Reference 37

Key Points
  • Recent field research has proven BIOPEST® to be safe to apply to a range of row crops including tomatoes
  • BIOPEST® was found to significantly improve the efficacy of commonly used insecticides
  • Crop safety was not comprised when BIOPEST® was mixed with common insecticides or fungicides
  • The physical mode of action of BIOPEST® makes it an effective resistance management tool


Image 1: Whitefly infestations can build up quickly. If populations are frequently first discovered from a cloud of whitefly flying out of infested plants then your monitoring technique needs improvement (see below). Photo by Cherie Gambley (DAFF). Source: Nursery & Garden Industry Aus.


During the 2018 season SACOA commissioned independent field research to investigate the role of BIOPEST® in controlling silverleaf whitefly in field crop tomatoes at Bundaberg Queensland.  The aim of this work was to prove that BIOPEST® was safe to apply at a rate of up to 1L/100L in mixtures with insecticides and fungicides and offers an alternate mode of action as a stand alone product for controlling a range of sucking pests such as whitefly, aphids and thrips.

Figure 1: Mean whitefly (adults & nymphs) numbers in row crop tomatoes with BIOPEST® and a range of insectides – Bundaberg May 2015.  (Source: Eurofins Research  S18-02444)

In this work single applications of a range of insecticides and BIOPEST® were made at the end of April.   Counts of silverleaf whitefly adults, nymphs and eggs where made on twenty leaves per plot out 28DAA.

BIOPEST® standalone at 1L/100L was shown to provide significant reductions in total whitefly numbers versus the untreated – control was statistically equivalent to the standard insecticides.  In mixtures with MOVENTO + BIOPEST® 0.5L/100L significantly reduced whitefly numbers compared to MOVENTO + Hasten 0.5L/100L.

These findings are consistent with previous work conducted by Bowen Crop Monitoring Services in glasshouse tomatoes – where BIOPEST® applied at weekly intervals was shown to reduce both adults and eggs of SLW – Figure 2

Figure 2 & 3: Silverleaf whitefly (adults & egg) numbers in glasshouse tomatoes with – Blush Tomatoes 2012 (Source: Bowen Crop Monitoring Services)



The physical smothering mode of action of BIOPEST® means that it is best applied to early lifecycle (eggs and nymphs) stages of developing pest populations – applying in spray water volumes that ensure leaf runoff will maximise efficacy as well as applying a number of times 7-14 days apart will ensure that subsequent pest generations are controlled.   Due to the high grade phyto safe formulation of BIOPEST® it is safe to incorporate into spray programs as a carrier for other insecticides and fungicides.  Using BIOPEST® in a program with other products will keep pest numbers low and reduce the risk of resistance development.

  • Apply in quick drying conditions where RH% is <60% and the temperature is between 20-32oC.
  • Use coarser droplets to target crops with disease lower in the canopy – BIOPEST® will increase droplet size
  • Do not apply to plants suffering moisture or other stress.
  • Mixing order – please see the Tech Note entitled ‘BIOPEST® Compatibility’
  • BIOPEST® has a formulation developed specifically to deliver high levels of crop safety without compromising efficacy on pests or disease
  • BIOPEST® has a physical mode of action with no recorded instances of resistance development in key horticultural pests
  • BIOPEST® has an IPM fit with little to no effect on pollinators and predatory insects
  • BIOPEST® is organically certified with nil residues & and excellent user safety
  • BIOPEST®has one of the broadest labels for use in horticultural crops – including compatibility with a huge range of mix partners
  • BIOPEST® has been widely used in a range of Australian horticultural crops for over fifteen years
  • Refer to label for more details on rates and mixing partners



Grower Bundaberg
Eurofins Research – Bundaberg
Bowen Crop Monitoring Services – Bowen
Godfrey Dol – Costa Exchange – Blush Tomatoes  Guyra NSW
Rob Barbera—”Barbera Farms”

  • Evaluation of BIOPEST®  for control of silver leaf whitefly in tomatoes – Eurofins Research  S18-02444
  • Improved Management of silver leaf whitefly in vegetables Dr Paul de Barro – HAL Project VX02016
  • Managing Silver leaf whitefly in production nurseries – Nursery and garden industry Australia


Disclaimer and Copyright

This document should act as a guide only and no purchase or usage decisions should be made based on the information provided without obtaining independent, expert advice. SACOA and contributors do not necessarily recommend or endorse any products or manufacturers referred to. SACOA Pty Ltd will not be liable for any loss, damage, cost or expense incurred or arising by reason of any person using or relying on the information contained in this document. More information is available from SACOA via or 08 9386 7666, or by contacting your local reseller.
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