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.
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.