Pendimethalin Dinitroaniline Preemergence Tank Selection

Storing Pendimethalin? Start Here

If you're in agriculture, especially dealing with corn, cotton, or orchard crops, pendimethalin is likely a familiar name. This herbicide helps control pesky annual grasses and small-seeded broadleaves before they emerge. It's commonly used across various crops and is available in different formulations. The most popular is the 3.8 lb/gal aqueous capsule suspension, which is easier on storage materials than older formulations. Let's explore how to store it safely and effectively.

Can you store it in a poly tank?

Yes, you can store pendimethalin in a polyethylene (poly) tank, particularly the 3.8 lb/gal aqueous capsule suspension. HDPE and XLPE tanks are both suitable, with HDPE being the standard choice for ag-retailers and cooperatives. Just ensure the tank is UV-stabilized and opaque to prevent photodegradation.

Beware of Orange Staining

While pendimethalin is compatible with poly tanks, it can cause orange staining over time. This is purely cosmetic and doesn't affect the tank's integrity or the herbicide's effectiveness. However, it's something to be aware of, especially if aesthetics are a concern.

The safety that actually matters

• Use UV-stabilized and opaque tanks if storing outdoors to protect against sunlight.
• Match gaskets and fittings to the manufacturer's compatibility chart to ensure longevity and safety.
• Regularly inspect tanks and fittings for any signs of wear or damage.

Common questions

Can pendimethalin be stored in older tanks?

Yes, but ensure they are compatible with the aqueous capsule suspension formulation to avoid issues with older aromatic solvent formulations.

What size tanks are typically used?

Common sizes range from 1,000 to 6,000 gallons, depending on your needs and storage capacity.

Is special handling required for pendimethalin?

Standard safety practices for handling herbicides apply, including using appropriate protective gear and ensuring proper ventilation.