Blackberry

Description

Blackberries are perennial weeds that are often referred to as "brambles." They have an upright and vining growth habit that can completely take over waste areas when not controlled. Blackberries have prickles on the stems and leaves, and deep taproots that make chemical control difficult. Distinctive berries form in the late summer, turning from red to black in color as the season progresses.

Cultural Control

Perennial broadleaf turf weeds are capable of living more than two years. They thrive in weak, thin turf; golf fairways and roughs; home lawns; playfields; and industrial grounds. Proper turf maintenance is the key to control of this weed. First, select adapted turfgrass cultivars for your area and then properly fertilize, mow, and water to encourage dense growth.

Chemical Control

Herbicide and Formulation Amount of Formulation per 1,000 sq ft Amount of Formulation per Acre Pounds Active Ingredient per Acre
Preemergence and Postemergence Control
mesotrione, MOA 27 (4 SC) (Tenacity) 0.092 to 0.183 fl oz 4 to 8 fl oz 0.125 to 0.25
Precaution and Remarks: Use on residential turf, golf courses (not greens) and sod farms for pre- and postemergence weed control. Tolerant turfgrasses include St. Augustinegrass, centipedegrass, tall fescue, fine fescue, Kentucky bluegrass, and perennial ryegrass. Add a nonionic surfactant and repeat application after 2 to 3 weeks for improved postemergence control. Tank mix with prodiamine 65 WG for extended preemergence grassy weed control. Can be applied at seeding to all tolerant grasses except fine fescue. After turf germination, wait 4 weeks or until turf has been mowed twice before making a postemergence application. Also controls henbit, chickweed, dandelion, white clover, Florida betony, Florida pusley, ground ivy, oxalis, wild violet, creeping bentgrass, and yellow nutsedge.​
[sulfentrazone + prodiamine], MOA 14 + 3 (4 SC) (Echelon) 0.184 to 0.826 fl oz 0.5 to 2.25 pt 0.25 to 1.125
Precaution and Remarks: Use on residential turf, golf courses (not greens) and sod farms for pre- and postemergence weed control. Tolerant turfgrasses include St. Augustinegrass, centipedegrass, tall fescue, fine fescue, Kentucky bluegrass, and perennial ryegrass. Add a nonionic surfactant and repeat application after 2 to 3 weeks for improved postemergence control. Tank mix with prodiamine 65 WG for extended preemergence grassy weed control. Can be applied at seeding to all tolerant grasses except fine fescue. After turf germination, wait 4 weeks or until turf has been mowed twice before making a postemergence application. Also controls henbit, chickweed, dandelion, white clover, Florida betony, Florida pusley, ground ivy, oxalis, wild violet, creeping bentgrass, and yellow nutsedge.​

Species Data

  • GROWTH SEASON / LIFE CYCLE
    • perennial weed
  • GROWTH HABIT
    • upright; vining
  • LEAFLET NUMBER
    • three
  • LEAF MARGIN
    • serrated/toothed
  • LEAF HAIRS
    • leaf hairs are present, along with distinctive thorns on the leaves and stems
  • LEAF / LEAFLET SHAPE
  • LEAF WIDTH
    • 1 - 2 inches
  • LEAF VENATION
    • pinnate
  • LEAF ARRANGEMENT
    • alternate
  • ROOT TYPE
    • taproot
  • FLOWER COLOR
    • white
Blackberry growth habit.Figure 1. Blackberry growth habit.Blackberry growth habit.Figure 2. Blackberry growth habit.Blackberry leaf shape.Figure 3. Blackberry leaf shape.Blackberry leaf shape.Figure 4. Blackberry leaf shape.Blackberry leaf shape.Figure 5. Blackberry leaf shape.Blackberry leaf shape.Figure 6. Blackberry leaf shape.

Written By

Photo of Dr. Charles PeacockDr. Charles PeacockProfessor and Extension Turfgrass Specialist (919) 515-7615 charles_peacock@ncsu.eduCrop and Soil Sciences - NC State University
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This Extension factsheet can also be viewed at:
https://content.ces.ncsu.edu/blackberry