Agriculture

A new agricultural adjuvant, Envirowet PCLL8 has been developed by AWT Pty Ltd. It is currently under application with the Australian Pesticides and Veterinary Medicines Authority (APVMA) and registration is expected by the first quarter of 2025. 

The highlights of this adjuvant are:

Unlike any existing amphiphilic surfactant, AWT formulations are not limited by micelle formation and as such can be used at different doses and is the only adjuvant that exhibits a reverse dose effect, i.e. is  more effective at lower doses. This was proven by agricultural trials conducted by Outlook Ag in the Narrabri region of NSW. 

This was proven by agricultural trials conducted by a team of agronomists, Outlook Ag in the Narrabri region of NSW.

Reference - "

Outlook Agriculture Wetting Agent Trial Report August2021" 

It was also re-proven by Kalyx an agronomy research company in 4 crop growing locations, Beverley WA, Horsham VIC, Young and Narrabri NSW for registration with the APVMA. 

References - 

"KA24-0728 SNSW Young Final Report"

"KA24-0740_ NNSW Bellata Final Report"

As micelles aren’t produced, a unique feature which is recognized by patent authorities worldwide, the surface tension of the liquid does not change from the bulk of the liquid in the droplet to the surface so there is no Marangoni Effect which occurs with all existing amphiphilic adjuvants used in agriculture today. This means there is no spray drift caused by micro droplets shearing off the surface of the spray droplet. 

This is achieved without the use of any surface coating oils, the use of which leads to excess active and adjuvant use. This was confirmed by Professor Andrew Hewitt of University of Queensland a world authority on spray drift after very detailed experiments conducted at their wind tunnel facility at Gatton Qld. 

References -  

"Analysis of Results Wind Tunnel

Bayer DSD Report Xtendimax Tank Mixes"

Due to the above factors, Envirowet PCLL8 can be used at significantly lower amounts than existing amphiphilic adjuvants i.e. 20% of the current dose rate of LI700 and 40% of the current dose rate of Wetter 1000. It also requires less active than the afore mentioned  adjuvants i.e., 1500mls glyphosate per 100 litres of spray mix compared to 2500mls per 100 litres of spray mix when using Wetter 1000. 

This was originally confirmed by trials conducted by the agronomists Outlook Ag in Narrabri NSW. This has also been confirmed by the agronomists of Kalyx Pty Ltd who are conducting fallow trials in WA, Vic, Southern and Northern NSW as part of the APVMA registration process. 

Trials so far have confirmed that glyposate resistant weeds such as annual rye grass, pig weed, milk thistle, cape weed, wild radish and many others are more effectively killed using Envirowet PCLL8 with the reduced rate of glyphosate. 

As a result, the aim is to try to eliminate and certainly reduce the double knock spraying with Paraquat two weeks after the initial Roundup spray.

Envirowet PCLL8 is compatible with all water-soluble herbicides insecticides and fungicides including powdered formulations such as Metsulfuron. It is also compatible with non-aqueous actives which is highly unusual for existing amphiphilic adjuvants. It is also being used in foliar fertiliser addition.

These results have shown that Envirowet PCLL8 used at the label rate is at least as effective as Wetter 1000 and LI700.

The following references are the reports of the Kalyx trials completed so far:

"KA24-0728 SNSW Young Final Report"

"KA24-0740_ NNSW Bellata Final Report"