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Plant Growth Regulator

Paclobutrazol 150g/kg WP

1.  Common name: Paclobutrazol;

2.  Chemical names:

3.  Chemical class: triazole plant growth regulator;

4.  Type of formulation: WP (Wettable Powder)

5.  Active ingredient and its content: Paclobutrazol 150g/kg.

6.  Structural formula: 

                                    

7  Toxic class (WHO): Slightly hazardous (III);

8.  CAS registry number: 76738-62-0;

9. Appearance: yellow powder

10. Applications:

Biochemistry Inhibits gibberellin and sterol biosynthesis, and hence the rate of cell division. 

Mode of action Plant growth regulator taken up into the xylem through the leaves, stems, or roots, and translocated to growing sub-apical meristems. Produces more compact plants and enhances flowering and fruiting. 

Uses Used on fruit trees to inhibit vegetative growth and to improve fruit set; on rice to increase tillering, reduce lodging, and increase yield; on turf to retard growth.

Mixing and dilution.

Pre-mix the required amount of product with a small volume of water to create slurry without lumps. Then half fill the spray tank with clean water and add this pre-mixed slurry to the tank. Agitate until mixture is well suspended. Then fill the spray tank to the final water level. Continue agitation during spraying until the tank is completely empty.

Spray immediately after mixing

Target pest and rate.

Crop

Pest

Rate

Method of Application

Rice

increase tillering, reduce lodging, and increase yield.

1300-2000ppm(dilute 20-32 gram product in 16 liters water)

Water dilution for foliar spray

Mango tree

inhibit vegetative growth and to improve fruit set

1200-1400ppm (dilute 12-14gram product in 16 liters water)

Water dilution for foliar spray

Durian tree

inhibit vegetative growth and to improve fruit set

7500-10000ppm(dilute 120-160gram product in 16 liters of water.

Water dilution for foliar spray

Note:

1) DO NOT mix with alkaline or acidic material.

2) DO NOT apply the product more than ONE TIME each season.

3) DO NOT use together with plant growth regulator such as GA3 or GA4.

4) DO NOT use together with nitrogen fertilizer.