Prochloraz
Prochloraz is a widely used fungicide known for its broad-spectrum efficacy against various fungal diseases in crops. As a leading solution in agricultural protection, Prochloraz plays a pivotal role in ensuring high-quality yields. This article provides a detailed overview of Prochloraz, its specifications, and answers to frequently asked questions.
Product Specifications
Below are the key technical parameters of Prochloraz:
- Chemical Name: N-propyl-N-[2-(2,4,6-trichlorophenoxy)ethyl]imidazole-1-carboxamide
- Molecular Formula: C15H16Cl3N3O2
- CAS Number: 67747-09-5
- Appearance: White to yellowish crystalline powder
- Solubility: 34.4 mg/L in water (20°C)
- Melting Point: 46-49°C
- Vapor Pressure: <0.01 mPa (25°C)
Formulations and Concentrations
| Formulation Type | Concentration | Application Method |
|---|---|---|
| Wettable Powder (WP) | 50% | Foliar spray |
| Emulsifiable Concentrate (EC) | 45% | Foliar spray |
| Dustable Powder (DP) | 10% | Seed treatment |
Prochloraz FAQ
What crops can Prochloraz be used on?
Prochloraz is effective on a wide range of crops including cereals (wheat, barley), oilseed rape, bananas, citrus fruits, and vegetables. It provides excellent control against diseases like powdery mildew, leaf spot, and fusarium head blight.
What is the recommended application rate for Prochloraz?
The application rate varies by crop and disease pressure. Generally, for foliar application, use 500-750 g/ha of active ingredient. For seed treatment, apply 2-3 g/kg of seeds. Always follow local regulations and label instructions.
What is the pre-harvest interval (PHI) for Prochloraz?
The PHI depends on the crop and formulation. Typically, it ranges from 14 days for cereals to 28 days for fruits. Consult the product label for specific PHI information in your region.
Mode of Action
Prochloraz works by inhibiting ergosterol biosynthesis in fungal cells, disrupting cell membrane formation. This unique mode of action makes it effective against resistant strains of fungi and provides protective and curative activity.
Safety and Handling
- Wear protective clothing, gloves, and eye protection during handling
- Avoid inhalation of dust or spray mist
- Do not eat, drink, or smoke while handling the product
- Store in original container in a cool, dry place away from foodstuffs
Environmental Considerations
Prochloraz has moderate persistence in soil (DT50 20-40 days) and is moderately mobile. Avoid application near water bodies as it may be toxic to aquatic organisms. Follow all environmental protection guidelines during use.
Compatibility
Prochloraz is compatible with most commonly used pesticides, but always conduct a jar test before tank mixing. Avoid alkaline mixtures (pH >8) as they may reduce efficacy.
Prochloraz FAQ (Continued)
Can Prochloraz be used in organic farming?
No, Prochloraz is a synthetic fungicide and not approved for use in organic farming systems. Organic producers should consider approved alternatives like copper-based products or biological controls.
What is the shelf life of Prochloraz products?
When stored properly in original containers, Prochloraz formulations typically maintain efficacy for 2-3 years from manufacture date. However, always check the expiration date on the product label.
How does Prochloraz compare to other fungicides?
Prochloraz offers broad-spectrum control with both protective and curative action. It's particularly effective against diseases resistant to other fungicide classes. However, resistance management is important - rotate with products having different modes of action.
Resistance Management
To prevent resistance development:
- Limit Prochloraz applications to 2-3 per season
- Alternate with fungicides from different chemical groups
- Use mixture products where appropriate
- Follow integrated pest management practices
Global Regulatory Status
Prochloraz is registered in many countries including EU member states, Australia, and parts of Asia and South America. Registration status can change, so always verify current approvals in your country before use.
Prochloraz FAQ (Final Section)
What personal protective equipment is required when using Prochloraz?
Minimum PPE includes chemical-resistant gloves, long-sleeved shirt and pants, waterproof boots, and eye protection. For prolonged exposure or high-concentration formulations, consider adding a respirator with organic vapor cartridge.
What should I do in case of Prochloraz exposure?
For skin contact: Wash immediately with soap and water. For eye contact: Rinse with clean water for 15 minutes. If inhaled: Move to fresh air. If swallowed: Do NOT induce vomiting; rinse mouth and seek medical attention immediately with product label.
How should leftover Prochloraz solutions be disposed?
Never pour into drains or watercourses. Use leftover spray on approved crops at labeled rates. For disposal of concentrate, contact local hazardous waste disposal services. Triple rinse empty containers before disposal.