AuStar® is most widely used on Mango, Stonefruit and Avocado. AuStar® plays the same fundamental role in all plants by inhibiting gibberellin synthesis. The primary effect of AuStar® is to reduce canopy growth and direct nutrients and the carbohydrates synthesised in the leaves into fruit and seed production, rather than into non-productive leaves and stems. The use of Austar on Avovados is practiced by 3 of the top 5 biggest Avocado farms in the world and the results speak for themselves. Additionally, scientific evidence widely documents the following respones very reliably.
Empirical evidence proves AuStar assists with:
• Managing and controlling the canopy;
• Better fruit retention;
• Increased yields by a minimum of 25% up to 82%
• Fuller shaped Avocado;
• Improves skin texture;
• Reduction in bi-ennial cropping;
• Enhances calcium concentration in fruit.
Foliar Spray Growth Control 0.7% (7L/1000L)
- Growth Control: For the control of vigorous growth, application is best done when in full flower.
Fruitdrop Control 0.5% (5L/1000L)
- Fruit Drop Control: To assist fruit retention, application is best at fruit set.
This is applied at flowering (or at pea size) to enable vital nutrients to be pumped into the fruit set:
- Rate of 0.56% at height of flowering ( i.e. 5.60 L / Ha ).
OR in some climates such as Israel and other similar countries:
- 1st spray at a rate of 0.35% at height of flowering ( i.e. 3.5 L / Ha ) ;
- 2nd spray at a rate of 0.21% at the end of flowering period ( i.e. 2.1 L / Ha ).
This is applied during summer months to control the canopy growth.
- Rate between 0.70% and 1.05% during vegetative flush /growth.
( i.e. 0.70 L / Ha and 1.05 L / Ha ).
In some locations farmers use AuStar® for fruit shaping.
When the fruit is 3/4 size (or 4 to 6 weeks before pick) check the neck of the fruit to determine how much to spray for fruit shaping.
- If the fruit has a long neck spray at 0.35% ( i.e. 3.5 L/ Ha );
- If the fruit has a full shoulder spray at 0.175% ( i.e. 1.75 L/ Ha );
*Registered in many countries including Australia with the APVMA.