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Expert System for Brush and Weed Control Technology Selection
Version 1.10

Ranching Systems Group
TAMU AG Program | TAES | TAEX


EXSEL: Expert System For Technology Selection


Name:
Home Phone:
Ranch:
Ranch Phone:
Address:
Address2:
City:
State:
Zip:

Species:
County:
Soil type :
Soil depth :
Plants per acre :
Plant stem diameter (in.):
Plant height (ft.):
Soil Moisture Options :
Treatment type options:

Individual Treatment: Plants are treated separately (one plant at a time). This treatment method is usually economical only when a low number of plants per acre require treatment.

Broadcast Treatment: Entire land units, or portions thereof, are treated with all susceptible plants being damaged. This control method is more economical when a high number of plants per acre require treatment. Broadcast treatments may be applied aerially (via airplane or helicopter) or by a ground based system.

Select INDIVIDUAL, BROADCAST, or let the system choose the most feasible option by selecting SYSTEM SELECTS BEST CHOICE


Control method :

Mechanical treatments include the use of equipment to cut, grub, or uproot problem plants. Drag shredders, hydraulic shredders, roller choppers, power and low energy grubbers, root plows, both smooth and modified chains, cables, brush stackers, root rakes, and various hand cutting and grubbing implements are normally used.

Chemical methods include applying herbicides to the problem plant or surrounding soil by hand (pellets), by hand equipment (i.e., spreader or pump sprayer), by a ground based sprayer, by an exact delivery handgun applicator, or by aerial means.

Select Mechanical, Chemical, or let the system choose the most feasible treatments by selecting System selects treatments


Topography :

If the area to be treated has steep slopes (10% or more) or rock outcrop, then some mechanical treatments are not recommended due to safety and equipment considerations.

Are there topographical features (i.e. excessive slope or rock outcrops) which would restrict the use of mechanical treatments (Y/N)?


Consider Seeding :

Seeding is often necessary because the reproductive capacity of the existing forage does not provide a reasonable improvement in forage production when brush management is practiced.

As a general rule, if desirable plants make up less than 10 - 15% of the total plant composition, and the soil type and climate are conducive for establishment of seeded forage, then seeding is recommended if economically feasible.

Be aware that seeding in a very dry environment may not be as successful as seeding in an area with more abundant and reliable precipitation.

Will the treatment area be seeded (Y/N)?


Aerial spray :

The presence of nearby susceptible plants (e.g., crops, gardens, orchards, landscape plants) may prevent the use of aerial application of herbicide. Also, aerial application may not be feasible on small acreages (less than 50 acres).

Is the location and size of the treatment area such that aerial application of herbicide is a viable option (Y/N)?


Consider Prescribed Burn :

Prescribed burning often reduces canopy cover for woody species for several years rather than causing plant mortality (except non-sprouting plants such as ashe juniper and eastern redcedar).

It is often used in combination with other brush control methods to enhance or extend treatment life.

Do you wish to consider a prescribed burn as part of your brush control plan (Y/N)?


If you do not wish to consider a prescribed burn, skip this question.

Fuel Load :


If you do not wish to consider a prescribed burn, skip this question.

Fuel Continuity :

Fuel Continuity is the closeness of fuel particles. Select the option that best defines your fuel continuity:


If you do not wish to consider a prescribed burn, skip this question.

Fuel Distribution :


REPORT OPTIONS

A control rating based on effectiveness of a treatment alternative to control a target plant has been given to each alternative. These ratings were determined from research and result demonstration data and from observations of commercial applications of the treatment in Texas. The rating represents a degree of plant mortality of the target plant species when the treatment is properly applied under optimum conditions for the treatment. The rating categories and degree of plant mortality are:

Control Rating % of plants killed
Very high 76 - 100
High 56 - 75
Moderate 36 - 55
Low 0 - 35
Print / Display Chemical Treatment Efficacy Levels

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