Of course, you must also consider the potential for fire hazard and use propane burners when fire risk is negligible. Propane burners can be especially effective in reducing the numbers of viable puncture vine seed left on the soil surface. One such method is the use of propane weed burners. These methods are especially welcome in areas such as schools, hospitals, and other public areas where herbicide use be unpopular.

Some non-chemical puncture vine control methods are also gaining popularity. Some of these are not labeled for use on puncture vine, so always read the product label before buying. There are many selective and pre-emergent herbicide products available. When correctly applied, a selective herbicide will kill puncture vine (and other broadleaf weeds) but not harm the grass. Selective herbicides can be used in situations where puncture vine has invaded lawn areas. Pre-emergent herbicides containing oryzalin or trifluralin applied in spring (April 1) will kill seedlings as they germinate during summer. Traditionally, landscape maintenance companies and homeowners have used various herbicides to control puncture vine in and around commercial and residential landscapes. Viable seeds can also lie dormant in soil for up to 20 years. When the burs stick into shoes, tires, animals and other moving objects, they are dispersed into new areas where new populations can establish. Hard spiny burs about one-half inch wide develop after the spiny fruits ripen. It has one-half inch wide yellow flowers and trailing stems that may reach one to six feet long in the summer. Puncture vine is a low-growing, mat-forming plant with small leaflets that resemble small mesquite leaves. Puncture vine ( Tribulus terrestris) is a noxious weed sometimes called “goat head.” It is a summer annual that grows in disturbed areas and vacant lots and can be found throughout Arizona at elevations below 6,500 feet.

Jeff Schalau, County Director, Agent, Agriculture & Natural ResourcesĪrizona Cooperative Extension, Yavapai County Backyard Gardener - Controlling Punture Vine, August 18, 2004Ĭontrolling Punture Vine - August 18, 2004

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