What herbicide can I use on sunflowers?

Soil-applied herbicides available for use in sunflower are EPTC (Eptam), ethalfluralin (Sonalan), S-metolachlor (Dual Magnum), pendimethalin (Prowl H2O and others), sulfentrazone (Spartan) and trifluralin (Treflan and others).

How do you control weeds in sunflowers?

Sunflower – Weed Management:

1. Apply Fluchloralin at 2.0 l/ha before sowing and incorporate or apply as pre-emergence spray on 5 day after sowing followed by irrigation or apply Pendimethalin as pre-emergence spray 3 days after sowing.
2. Hoe and hand weed on the 15th and 30th day of sowing and remove the weeds.

What do you spray Clearfield sunflowers with?

Comments: USE ONLY ON CLEARFIELD SUNFLOWER VARIETIES. Apply BEYOND to sunflowers from the 2‐ to 8‐leaf growth stage before broadleaf weeds exceed 3 inches in height. Add non‐ionic surfactant at 2 qt per 100 gal of spray solution plus liquid nitrogen at 1‐2 qt/A or ammonium sulfate at 1.5‐3 lb/A.

Can you spray atrazine on sunflowers?

Can you spray atrazine on sunflowers? Symptoms of atrazine residue injury may include stunting of seedlings and yellowing of leaves and leaf margins, followed by browning or leaf tip burning. In severe cases, susceptible plants will be killed.

Are there any herbicides that are good for sunflowers?

Grasses, broadleaf plants, vines and other weeds can quickly overwhelm sunflowers. While herbicides specifically labeled for sunflower production are limited, according to the University of Tennessee, there are a number of herbicides that can help control weeds in sunflower plantings.

When to apply glyphosate Express to sunflowers?

Requires 0.75 to 1 inch of moisture for herbicide activation. Provide adequate furrow closure at planting. Tank mix with Aim herbicide, glyphosate, Express* or paraquat for broad spectrum burndown weed control. *Express pre-plant for ExpressSun varieties only. Postemergence. For most foxtail, apply when plants are 2-4 inches tall.

When to use pre emerge control on sunflowers?

Pre-emerge control: May give six to eight weeks of residual weed control for small susceptible weeds such as pigweeds, kochia, green foxtail, Russian thistle and common lambsquarters. Fall or spring, Early preplant, Preplant or pre-emergence up to 3 days after planting, if seedlings have not broken the soil surface.

Why are there so many weeds in my sunflowers?

This is weed control in sunflowers. Due to the fact that sunflowers grown from seeds can take up to two weeks to appear, weeds can very easily establish themselves and then shade the sunflower seedlings, which will stunt the sunflowers’ growth. You have three major options with weed control in sunflowers.