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A growth regulator for the reduction of fruit russeting of apples and to improve the germination of Nothofagus seeds. Contains 10 g/L (0.96 % w/w) of a mixture of gibberellins.

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.

PROPERTIES OF GIBB PLUS
GIBB Plus is a liquid growth regulator containing a mixture of the gibberellins A4 and A7. Both these gibberellins occur naturally in apples.
Applied during the fruitlet stage, GIBB Plus greatly reduces fruit russeting, resulting in fruit of improved quality. It is probable that GIBB Plus improves fruit finish by increasing the elasticity and the production rate of the outer epidermal cells of the rapidly expanding fruitlets after petal fall. In addition to fruit quality, GIBB Plus, can have a positive influence on the marketable yield. On Cox, the inclusion of ‘Cultar’ in the spray programme has often led to optimum yield.
Treated fruit may tend to be slightly more conical and elongated in shape and occasionally a slight reduction in return blossom can occur. Consult processors before treating crops grown for processing.
GIBB Plus is also recommended for use as seed soak to improve the germination of forest tree seeds (Nothofagus obliqua and N. procera).

APPLICATION TO APPLES
For the improvement of fruit skin finish.

Rates of use
Use: 0.2-0.4 litres/ha at 7 days intervals
OR
0.25-0.5 litres/ha at 10 days intervals
Use higher rates when conditions (e.g. cold, wet or windy weather) are conductive for fruit russeting. Lower rates may be used under more favourable conditions, but the degree of improvement in the fruit skin finish is dependent on the rate used.

Timing of sprays
Apply the first spray immediately after the completion of petal fall, followed by:
four further sprays at 7 days intervals
OR
three further sprays at 10 days intervals
If conditions during the period of petal fall to fruitlet are especially favourable for good fruit finish, then the final spray may be omitted.

Preparation of the spray solution
Slowly invert the container several times before using to ensure uniform mixture. Half fill the spray tank with clean water. Add the recommended quantity of GIBB Plus to the sprayer using a filling device (eg. induction bowl, probe) or by direct addition to the spray tank. Wash out containers thoroughly. Preferably use an integrated pressure rinsing device, or manually rinse three times. Add washings to the sprayer at the time of filling. Top up tank with water to required level.

Water volumes and spraying
Apply in not less than 200 litres of water per hectare. For optimum results, good coverage of the fruitlets is essential and this can best be achieved by applying in a volume of 500 to 1000 litres per hectare. Spraying under humid and slow drying conditions will further enhance the results achieved. Apply by any suitable orchard sprayer. Do not leave spray liquid in the sprayer for long periods (i.e. during meals or overnight).

Varieties
GIBB Plus has been used on Cox, Discovery, Golden Delicious and Karmijn with excellent results. Until further experience is gained, it is recommended that only a few trees of other varieties are treated.

TANK MIXTURES
GIBB Plus is compatible with any one of the following products: pirimicarb (MAFF 06633), paclobutrazol (MAFF 06649), diflubenzuron (MAFF 06656), lambda-cyhalothrin (MAFF 0634), bupirimate (MAFF 06686), captan (MAFF 07096), calcium chloride, calcium nitrate, urea.
GIBB Plus is also compatible with the following 3 way mix: GIBB Plus + captan (MAFF 07096) + bupirimate (MAFF 06686), providing constant agitation is maintained and the tankmix sprayed immediately
Before using any tank mixture, always consult and comply with the recommendations of the partner product.
This product is to be used in accordance with the recommendations and instructions given on the labels provided with this pack. Use in any other circumstances is entirely at the user’s risk.