January 2018 Articles

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Thistles

Thistles — If left uncontrolled, thick thistle stands can reduce grazing and result in less forage production. A single thistle plant can produce at least 4,000 seeds, which increases the chance for higher thistle populations in the pasture the following year. Consequently, management practices need to be conducted prior to flower formation for effective thistle control. Even if thistles have not infested your pasture in the past, it is ideal that your pastures are scouted in late fall through mid-spring (November to March) to ensure that thistles do not get out of control. New infestations are easier to manage than large-scale populations. Although there are at several different species of thistle, most are closely related and control recommendations will not differ. Best time to control with a herbicide is when thistles are in the rosette stage. The rosette stage is when the thistle forms a low-growing ring of leaves. As they mature they are harder to control and may require higher rates of herbicide to have effective control. Select Herbicide Options:
Weedmaster Remedy 2,4-D PastureGard GrazonNext HL
Cimarron Max (for bermudagrass pastures, will control bahiagrass!)
REMEMBER: THE LABEL IS THE LAW! Always read the pesticide label before using. Used with permission — Texas A&M AgriLife Extension Forage Fax Private Pesticide Applicator License Holders: Don’t forget to check the expiration date on your license! If it will be expiring March 31, 2018, check with your local LSU AgCenter office to find a recertification session near you!
Private Pesticide Applicator License Holders: Don’t forget to check the expiration date on your license! If it will be expiring March 31, 2018, check with your local LSU AgCenter office to find a recertification session near you!