Herbicide Applications

Early travelers on the Journada del Muerto such as Susan Shelby Magoffin of El Paso reported in her diary that the area was predominately grama grass. Interpretations from an 1858 land survey indicate much larger areas of grassland than today. Shrubs were restricted to gravelly upland, arroyos and river sites. Early researchers at the CDRRC such as Ken Valentine and John Norris saw an increase in the number of undesirable shrubs and the reduction in the size of grassland... The decision was made to begin a brush control program that would try to preserve the desert grassland for future researchers. Today that program continues to control shrub invasion which threatens to eliminate much of the grassland.

The following maps have been constructed to allow researchers to be aware of when and where herbicide applications have been made at the ranch.

Mesquite Treated Areas for Management

     
2003 View of Jornada Trail
formerly the Camino Real



Mesquite Seedlings July 2000

  1958-1965 Individuals Treatment Map

  1968 Herbicide Treatment Map

  1973 Herbicide Treatment Map

  1975 Herbicide Treatment Map

  1982 Herbicide Treatment Map

  1984 Herbicide Treatment Map

  1985 Herbicide Treatment Map

  1990 Herbicide Treatment Map

  1991 Herbicide Treatment Map

  1993 Herbicide Treatment Map

Small Experimental Herbicide Plots

Image of small experimental herbicide plots

ID DESCRIPTION PASTURE HERBICIDE DESCRIPTION YEAR OF TREATMENT
1 Velpar exclosure 15 Velpar Grid Application + Individual 1981
2 W. Hoffler Velpar Site 12 Velpar Grid Application + Individual 1982
3 W. Hoffler Velpar Site 12 Velpar Grid Application + Individual 1982
4 W. Hoffler Velpar Site 13 Velpar Grid Application + Individual 1982
5 W. Hoffler Velpar Site 10 Velpar Grid Application + Individual 1982
6 Initial Velar Research Site 14 Velpar Grid Application 1979
7 Elanco Brush Bullet Rate Trials 14 Tebuthiuron Individual Latr-Prgl 7 Sept 1983
8 Elanco Brush Bullet Rate Trials 12 Tebuthiuron Individual Latr-Prgl 6 Oct 1983
9 Elanco Brush Bullet Rate Trials 14 Tebuthiuron Individual Latr-Prgl 6 Oct 1983
10 Elanco Brush Bullet Rate Trials 14 Tebuthiuron Individual Latr-Prgl 6 Oct 1983
11 Velpar Individual Creosote Treatment and Grid 14 Velpar Grid Application + Individual 1980
12 Banvel, Tordon and Pramitol Aerial Application 12 Banvel, Tordon and Pramitol 366m x 265m 13 Jan 1977
13 Banvel, Tordon and Pramitol Aerial Application 12 Banvel, Tordon and Pramitol 366m x 265m 13 Jan 1977
14 Banvel, Tordon and Pramitol Aerial Application 12 Banvel, Tordon and Pramitol 366m x 265m 13 Jan 1977
15 Banvel, Tordon and Pramitol Aerial Application 10 Banvel, Tordon and Pramitol July 1976
16 Banvel, Tordon and Pramitol Aerial Application 10 Banvel, Tordon and Pramitol July 1976
17 Banvel, Tordon and Pramitol Aerial Application 10 Banvel, Tordon and Pramitol July 1976
18 Pramitol Ground Application 13 Pramitol 1979
19 Velpar Individual Mesquite Treatment 14 Velpar 1980
20 Snakeweed Test Plots 3W Variety McDaniel Data 1979
21 Snakeweed Test Plots 13 Variety 1977
22 Snakeweed Test Plots 3W Variety 1977
23 Snakeweed Test Plots 3S Variety 1977
24 Leased Mesquite Herbicide Plot 15 Unknown ~1983
25 Pramitol Ground Application 12 Pramitol 1979

Aerial Spray Experimental Treatments

Aerial Herbicide Plots
Click on image for larger view


Aerial Herbicide Table (PDF)

In 1984 and 1985 large experimental plots were treated with various herbicides at different rates. These plots were applied with a fixed wing aircraft.

Recent Individual Plant Treratments

Since 1985, only individual mesquite plants have been treated. In general, only plants interferring with roadways, pasture fences or creating difficulties when handling animals have been subject to treatment.