SACOA’s Cotton Research Program is extending the use of spray oils in cotton IPM programs.
The primary goal of SACOA’s Cotton Research Program is to test, validate and extend the use of spray oils in cotton IPM programs.
SACOA is currently spearheading this goal via research into their BIOPEST formulation. The premise underlying this research commitment is relatively
simple – that BIOPEST’s unique formulation can deliver improved pest control, reduce the negative effect of traditional chemistry on pest resistance and beneficial insects, and provide economic benefits in the form of reduced spray costs without any negative effect on yields.
But talk is cheap, and this belief is founded on precedent and evidence. Precedent from other commercial crops such as bananas and citrus and evidence from previous season’s research in cotton.
Cotton Research Program findings discussed on this page are:
IMPORTANT NOTE: The content of this page does not in any way constitute a recommendation by SACOA to use BIOPEST outside of its registered use.
An oil’s efficacy is influenced by a number of factors. However, it is important to appreciate that no single factor will determine the performance of an oil. So whilst it is important to evaluate an oil based on its specifications, the evidence in the field should act as the final test. Key factors include:
Independent research conducted through the University of Queensland concluded that deposits of BIOPEST are more effective than those of an nC27 (Caltex Canopy®) for up to 5 days after treatment (refer graph below).
Even though the deposits of the nC27 oil persisted a few days longer, the cumulative mortality percentages inflicted on those aphid cohorts exposed to Canopy® were lower and statistically different (P=0.05) from those recorded for aphids exposed to the deposits of BIOPEST oil, at least on days 1 and 3 after treatment.
These results highlight that an oil’s efficacy is based on more than a single specification.
The superior efficacy can be explained by the proprietary surfactant package in BIOPEST providing superior coverage and penetration into and on the insect. This surfactant package, when combined with a unique quality base oil with a true USR of 99.8% and a paraffin content of 74% Cp equates to increased efficacy.
BIOPEST is registered for use in the control of cotton aphid.
A series of six field experiments (supported by mesh-house and laboratory tests) were conducted to assess the efficacy of BIOPEST oil against the cotton aphid, (Aphis gossypii Glover).
Season-long field trials were conducted at Australian Cotton Research Institute, Narrabri during the 2003-04 season.