- Adult: small gray moth, 3/8 - 1/2 in. wing span, active at dusk.
- Egg: small (1/64 in.), pale yellow to orange, found singly or grouped in 2 - 3's usually on lower surface of foliage, hatch in 4-9 days.
- Larva: purplish-gray, 3/8 in. at maturity, found in blotch mines, leaf fold or fruit, larval stage lasts 8-20 days.
- Pupa: formed in loose pupal cell near soil surface, adult emerges in 16-37 days.
- Generation Time: 28-67 days.
- Damage: blotch mining and folding of leaves, small holes (pin size) in fruit. Important pest in south and central Florida.
Tomato Pinworm Pictures
a) adult hides in lower canopy and becomes active at dusk;
b) egg has no ridges and is laid singly, usually on lower surfaces of upper leaves (courtesy of E. Vasquez);
c) newly hatched larva bores into leaflet forming a blotch mine.
a) mature larva is purplish-gray and forms leaf rolls of foliage or bores into fruit;
b) mature larva may bore into the fruit under the calyx, the preferred point of entry.