Tomato Leaf Miner(TA)

  • Common name :
    Tomato Leaf miner/Tomato borer

  • Scientific name :
    Tuta absoluta

  • Crops :
    Tomato and Potato

Tomato Leaf Miner Life Cycle

Identification of the pest

Egg : Small (0.36 x 0.22 mm), cylindrical and creamy white to yellow or brownish. Eggs are mainly deposited on the underside of leaves.

Larva : A characteristic knob is present on the scutellum. These bugs are active early in the morning and late in the evening.

Pupa : Each female bug can insert as many as 500 eggs in plant tissues. The eggs hatch in about a week's period by releasing the nymphs. After passing through five moltings adults in a fortnight's period. The entire life cycle is completed in about a month.they turn into

Adult : In a year there may be several generations. Adults hibernate during winter. These insects are active from January to September. Their damage is predominant in moist and shaded areas especially after monsoon showers.

Symptoms of Damage

  • Puncture marks
  • Abnormal shape
  • Exit holes
  • Rot due to secondary infective agents
  • Frass (fine powdery material that plant-eating insects pass as waste after they digest plant parts)

Young larvae and eggs are difficult to find. Fruits show puncture marks on the surface where the larva has entered the plant.

Attacked tomatoes are easy to spot by the exit holes and the dried frass produced by the last larvae as they pupate.

Signs of damage on the fruit are often observed under the calyx (green leaf-like organ above the fruit). Cracks and crevices on containers should be checked for the presence of pupae.

Controlling Method: Use AXON IPM Pheromone lures and traps.

  • Number of pheromone traps required :Install Pheromone traps 6-7 per acre
  • Type of trap : Water trap or funnel trap
Scroll to Top