Plant guide:ðŸĨĶ BroccoliPest guide:🐛 Thrips
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Pests

Thrips on Broccoli Plants

Commonly affects: Brassica oleracea var. italica (Broccoli)

Silvery streaks and small dark specks appear on leaves, with distorted new growth in heavier infestations, most noticeable in warm, dry weather.

Potential Causes

  1. 1Thrips feeding on leaf surfaces, rasping tissue
  2. 2Warm, dry conditions favouring population growth
  3. 3Nearby infested plants or weeds seeding new populations

Solution Steps

  1. 1Use blue sticky traps to monitor and reduce adult thrips
  2. 2Apply insecticidal soap for active infestations
  3. 3Remove heavily damaged leaves to reduce the population reservoir
  4. 4Keep the growing area free of weeds that harbour thrips

Prevention Tip

Thrips are a secondary pest on broccoli in most gardens — moderate populations rarely require aggressive intervention.