Progibb® 4%

Identification & Functionality

Chemical Family

Diols

Agrochemical Functions

Plant Growth Regulator (PGR)

Technologies

Agrochemicals

Product Families

Agrochemicals — Plant Health, Nutrients & Soil Management

Plant Growth Regulators (PGR) & Harvest Aids

Active Ingredient

Gibberellins - 32 g

Applications & Uses

Markets

Agriculture & Feed

Applications

Agriculture & Feed — Agricultural Crops

Fruits,

Other Agricultural Crops,

Sugar & Starch Crops

Applicable Crop

Grape,

Grapefruit,

Hops,

Lemon,

Mango,

Orange,

Pear,

Peppers,

Potato

Application Technique

Sprayers

Directions For Use

Use only as directed.

Efficacy is greatly influenced by environmental factors, i.e. water stress and heat waves can have a negative influence. Ideally soil conditions should be at field capacity during application.

PREFERABLY APPLY EARLY IN THE MORNING OR LATE IN THE AFTERNOON. DO NOT APPLY IN THE HEAT OF THE DAY.

With SULTANINA GRAPES : Apply in 1 300 - 1 800 l water/ha. Ensure thorough cover of bunches and enclosing leaves.   Care must be taken with wetting agents as russetting can occur.   Both spray and dip method can be applied. The success of the treatment is critically dependant on the correct timing of the application.

Mixing Instructions

• Fill spray tank, start agitator and add ProGibb^®4%.   
• Aqueous sprays containing ProGibb^®4% should be used as soon as possible after mixing.

Recommendations

CROP / OBJECTIVE	RATE PER 100/LITER WATER			REMARKS
	ProGibb® 4%	2,4-D ESTER OR DIMETHYL AMINE SALT FORMULATION CONTAINING 480g 2,4-D PER LITER	WETTER
GRAPEFUIT To delay harvest.	32 ml	2 ml	Non ionic wetting agent	Apply as a full cover spray at colorbreak-transparency color number 5 or up to 3 weeks thereafter. Do not apply before colorbreak. Apply ProGibb®4% only to healthy trees, where blackspot and thrip are under control and no excessive windscar occurs. The average fruit size must not be too large and should not exceed 89mm at the time of spraying.
LEMONS To delay harvesting thus to protect the crop during the decay prone period	32 ml	2 ml	Non ionic wetting agent	Full cover spray 5-8 weeks before usual picking date. Apply only to trees free of blackspot or other blemishes.

 

 

CROP / OBJECTIVE	RATE PER 100/LITRE WATER			REMARKS
	ProGibb®4%	2,4-D ESTER OR DIMETHYL AMINE SALT FORMULATION CONTAINING 480g 2,4-D PER LITRE	WETTER
NAVEL	64 ml		Non ionic	Apply as a full cover spray in
ORANGES			wetting agent	JANUARY but not later than the
To reduce rind				last week of FEBRUARY. Apply
creasing in Navel				ProGibb®4% only to healthy trees
oranges on				where thrip blemish and wind scar
Trifoliate or				do not exceed 20 % cull on the total
Trifoliate hybrid				crop.
rootstock.
NAVEL	32 ml		Non ionic	Apply as a full cover spray in
ORANGES			wetting agent	JANUARY but not later than the
To reduce rind				last week of FEBRUARY.
creasing in Navel				Apply ProGibb®4% only to healthy
oranges on Rough				trees where thrip blemish and wind
lemon rootstock.				scar do not exceed 20 % cull on the
				total crop.
OR
NAVEL ORANGES To reduce rind creasing in Navel Oranges on Rough lemon rootstock	32 ml	2 ml	Non ionic wetting agent	Apply as a full cover spray in MAY after full yellow color has developed (minimum color T3). Follow this treatment up with a 1% urea (low biuret) at budbreak to avoid reduced flowering in the new season. Apply ProGibb®4% only
				to healthy trees where thrip blemish
				and wind scar do not exceed 20 %
				cull on the total crop.

 

 

 

CROP / OBJECTIVE	RATE PER 100/LITRE WATER			REMARKS
	ProGibb® 4%	2,4-D ESTER OR DIMETHYL AMINE SALT FORMULATION CONTAINING 480g 2,4-D PER LITRE	WETTER
VALENCIA	64 ml		Non ionic	Apply as a full cover spray in
ORANGES			wetting agent	JANUARY but not later than the
To reduce rind				last week of FEBRUARY.
creasing in				Apply ProGibb®4% only to
Valencia oranges				healthy trees where thrip blemish
on all rootstocks				and wind scar do not exceed
				20 % cull on the total crop.
OR
VALENCIA ORANGES	32 ml		Non ionic wetting agent	Apply as a full cover spray after the fruit has developed a full
To reduce rind				yellow color (minimum color
creasing in				T3). Do not apply before mid-
Valencia oranges				JUNE.
on all rootstocks				Apply ProGibb®4% only to
				healthy trees where thrip blemish
OR				and wind scar do not exceed
				20 % cull on the total crop.
VALENCIA ORANGES To reduce rind	16 ml		Non ionic wetting agent	Apply as a full cover spray when the fruit has developed a light greenish color (T5 to T4)
creasing in				(minimum color T5). Do not
Valencia oranges				apply before mid JUNE.
on all rootstocks.				Apply ProGibb®4% only to
				healthy trees where thrip blemish
				and wind scar do not exceed.
CLEMENTINES To increase fruit set.	8 ml to 32 ml		Non ionic wetting agent	Apply as a full cover spray from 65 to 75 % petal drop to 4 weeks after 100 % petal drop. The later the ProGibb® 4% is applied the less will be the fruit set response. It is important to know the history of an orchard to decide on the yield/fruit size balance before applying ProGibb® 4%. An excessive fruit load will result in small fruit and induce alternate bearing. CONSULT YOUR ProGibb® DISTRIBUTOR BEFORE APPLYING ProGibb® .

 

 

 

CROP / OBJECTIVE	RATE PER 100/LITRE WATER			REMARKS
	ProGibb®	2,4-D ESTER OR	WETTER
	4%	DIMETHYL AMINE
		SALT
		FORMULATION
		CONTAINING 480g
		2,4-D PER LITRE
SULTANINA GRAPES (Seedless) Berry Thinning (1)	32 ml			1st Application : When 50 % capfall has occurred in at least half of all the bunches (half of all the bunches are 50 % in bloom).
Berry Thinning (2)	32 ml			2nd Application : When 80 % capfall has occurred in at least half of all the bunches (half of all the bunches are 80 % in bloom).
To enlarge berries :
Lower Orange River	96 ml		Non ionic wetting agent	1st Application : Apply when berries have set and 50% ± 4-5 mm in diameter.
	96 ml		Non ionic wetting agent	2nd Application : Apply when 75 % of berries are ± 4-5 mm in diameter.
	96 ml		Non ionic wetting agent	3rd Application : Apply when 100 % of berries are ± 4-5 mm in size.
All other areas	96 ml		Non ionic wetting agent	1st Application : Apply when berries have set and are 5mm in diameter.
	96 ml		Non ionic wetting agent	2nd Application : 7 days after first application. (Application must not occur later than the pea-berry stage).

 

 

 

CROP / OBJECTIVE	RATE PER 100/LITRE WATER			REMARKS
	ProGibb® 4%	2,4-D ESTER OR DIMETHYL AMINE SALT FORMULATION CONTAINING 480g 2,4-D PER LITRE	WETTER
FLAME SEEDLESS GRAPES   Lower Orange River Area				No thinning may be required in some instances, as Flame Seedless has naturally straggly bunches.
Berry thinning	16 ml		Non ionic wetting agent	Apply during flowering when 80 % in full bloom.
To enlarge berries (1)	96 ml		Non ionic wetting agent	1st Application : Apply when berries are 7-8 mm in diameter.
To enlarge berries (2)	96 ml		Non ionic wetting agent	2nd Application : Apply when beries are 8-9 mm in diameter.
WALTHAM CROSS GRAPES To enlarge berries and obtain a more even size berry.	16 ml		Non ionic wetting agent	Apply by dipping the bunches in the ProGibb® 4% solution when the berries are 4-5 mm in diameter.
FORELLE PEARS To improve fruit set	32 ml			Apply as a full cover spray at 30 to 40 % flowering.  Normal hand thinning must be followed 14 days later.
MANGOES	320 ml		Non ionic	Apply as a full cover spray
To inhibit the			wetting agent	during the last week of July or
flowering of young				the first week of August. Break
trees.				off any flower panicles before
				applying ProGibb®4%.
HOPS	32 ml		Non ionic	Apply as a full cover spray in
To improve yield by			wetting agent	early Spring. (September to mid
enhancing growth in				October)
spring and for a
shorter and more even
hop training period.

 

 

CROP / OBJECTIVE	RATE PER 100/LITRE WATER			REMARKS
	ProGibb® 4%	2,4-D ESTER OR DIMETHYL AMINE SALT FORMULATION CONTAINING 480g 2,4-D PER LITRE	WETTER
POTATOES To improve sprouting of potato tubers:
Uncut tubers	16 ml			Dip tubers for a period of 10 minutes. Leave to dry in a cool dry place and plant as soon as first eye movement is observed. Change to a fresh solution after dipping tubers sufficient for a planting of one hectare. DO NOT DIP CUT TUBERS IN THIS USED SOLUTION.
Cut tubers	3.2 ml			Dip tubers for a period of 10 minutes in mixture. Leave to dry in a cool dry place and plant as soon as first eye movement is observed. Change to a fresh solution after dipping tubers sufficient for a planting of one hectare. DO NOT DIP UNCUT TUBERS IN THIS SOLUTION, AS THE RESULTS WILL BE UNSATISFACTORY
PEPPERS &	16 ml			Apply every 14 days as a light
PEPPERDEWS				cover spray. Commence spray 7
To stimulate				days after transplanting. Do not
vegetative growth in				exceed 16 ml ProGibb®4% per
winter, and reduce				hectare.
sunburn on fruit.

Properties

Formulation Type

Concentrate Solutions

Physical Form

Liquid

Technical Details & Test Data

Compatibility

• DO NOT apply with other agricultural chemicals unless indicated on label.
• IF A SUMMER OIL HAS BEEN APPLIED ON CITRUS A MINIMUM OF TWO WEEKS MUST EXPIRE BEFORE ProGibb^®4% MAY BE APPLIED. AN OIL SPRAY MAY BE APPLIED 5 TO 10 DAYS AFTER A ProGibb^®4% APPLICATION.

POTATOES

Before dipping, remove seed tubers from pockets and discard all tubers that are not dry and healthy. Unhealthy and rotting seed tubers may spread other pathogens (eg. Erwinia spp. responsible for soft rot) to uncontaminated healthy tubers during dipping.

Safety & Health

Warnings

• Flammable - Keep away from heat and open flames.
• Keep out of reach of children, uninformed persons and animals.
• May cause eye irritation and is harmful if swallowed or if vapors are inhaled for prolonged periods. In case of contact with eyes, flush thoroughly with water.
• Do NOT use ProGibb^®4% for sultanas which are to be dried.
• Do not use chlorinated water (tap water) for spraying with ProGibb^®4%.
• Do not apply 2,4-D ester in citrus destined for export before consulting The Outspan International Export Guidelines.
• This remedy has been extensively tested under a large variety of conditions. The registration holder does not warrant that it will be efficacious under all conditions because the action and effect thereof may be affected by factors such as abnormal, climatic and storage conditions: Quality of dilution water, as well as by the method, time and accuracy of application. The registration holder furthermore does not accept responsibility for damage to crops, vegetation, the environment or harm to man or animal or for lack of performance of the remedy concerned due to failure of the user to follow the label instructions or to the occurrence of conditions which could not have been foreseen in terms of the registration. Consult the supplier in the event of any uncertainty.

Precautions

• Do not inhale spray mist.
• Wash with soap and water after use. Store in a cool, dry place.
• Avoid drift of spray onto other crops, grazing, rivers and dams.
• Clean applicator before using with other remedies and dispose of wash water where it will not contaminate crops, grazing, rivers and dams.
• Rinse empty container three times with a volume of water to at least one tenth of that of the container and add the rinsings to the contents of the spray tank before disposing of the container in the prescribed manner.
• Destroy empty container and NEVER use for any other purpose.
• Prevent contamination of food, feeds, drinking water and eating utensils.