Brush Control

Mesquite

Ideal Spray Conditions
- Optimum soil temperature: 78-83 degrees
- Avoid spraying when plants are in a drought situation and immediately after a large rain (more than three inches) because of poor translocation.
- Spraying season: 42-63 or 72-84 days after bud-break
- Workable wind speeds: 2-10 mph
- Avoid spraying when relative humidity is low (less than 50 percent).
- Avoid spraying when temperature is extremely high (over 95 degrees).
Aerial-Spraying Mesquite
- Mixture
  - 1/4 lb/acre of Remedy, 1/4 lb/acre of Reclaim.
  - 2-4 gallons oil-in-water emulsion (1 pt. to 1 g. diesel fuel oil and water to make ratio is considered optimum)
Hand-Spraying Mesquite
- Stem-Spray
  - 15 percent Remedy, 85 percent diesel
  - Wet all stems emerging from the ground to 12 inches up each stem.
  - Works well on smooth bark mesquite trees that are less than eight feet tall.
- Leaf-Spray
  - 0.5 percent Reclaim, 0.5 percent Remedy, 0.25 percent surfactant
  - Mix with water.
  - Spray must contact all leaves.
  - Follow same guidelines for aerial-spraying mesquite.
  - Works well for trees less than eight feet tall.

Prickly Pear

Hand-Spraying
- Wet both sides of all pads of a plant for an effective mortality rate.
- Hand-spray any time during the year when some soil moisture is present.
- Avoid spraying when drift potential is high.
- Mixture: 1 percent Tordon 22K mixed with water and a surfactant.
Aerial-Spraying
- Prescribed burning before spraying can damage prickly pear pads and allow a lower rate of herbicide for an effective kill rate (1/8 to 1/4 lb/acre of Tordon 22K).
- Tordon 22K is a restricted-use herbicide.
- Mixture: 1/4 to 1/2 lb/acre of Tordon 22K. Two to four gallons oil-in-water emulsion (1 pt. to 1 g. diesel fuel oil and water to make ratio optimum).

Safety

We strongly recommend that you work closely with your local National Resources Conservation Service office or county extension office before attempting to control unwanted plants with herbicides.