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Pest & Disease Library · Solutions

Thrips Control in Lettuce

Thrips rasp leaves, flowers, and fruit, leaving silvery scarring, and several species transmit viruses. This page covers thrips in lettuce.

Common crops affected

Why it matters

Feeding scars downgrade flowers and fruit, and their virus-vector role can exceed the direct damage; they shelter in buds so infestations build unseen.

When it appears

Warm, dry conditions; concentrated in flowers and new growth.

How to identify it

  • Silvery streaks and stippling on leaves and petals
  • Tiny black specks (droppings) on damage
  • Distorted, scarred new growth and flowers

How to manage it

  1. Monitor with blue/yellow sticky traps; manage weeds.
  2. Spray Spider Mite Control into flowers and new growth; repeat every 3–5 days.

Recommended Vegalab program

RoleProductUse
Primary controlSpider Mite ControlNatural oils on thrips in flowers/new growth
Broader pressureMultiMite ControlMixed pest pressure

Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.