Thaumatotibia (Cryptophlebia) leucotreta

Thaumatotibia (Cryptophlebia) leucotreta

Thaumatotibia (Cryptophlebia) leucotreta (Falso gusano de la manzana)

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This species was known for a long time as Cryptophlebia leucotreta transferred the species to the genus Thaumatotibia.

Damage: Damage is caused by the feeding of larvae inside fruits, nuts, corncobs or cotton capsules. Damage to food can also lead to the development of secondary infections by fungi or bacteria. The eggs (whitish, about 0.9 mm long) are placed on the surface of the fruit, alone or in small numbers. Shortly after hatching, young larvae enter the fruit and feed internally. The young larvae are whitish with a dark brown head, and usually develop through 5 instars. The mature larvae are approximately 15 mm long, are pinkish red with a brown head. The fully grown larvae emerge from the fruit and open up in the soil, in a cocoon of silk and fragments of earth. Adult moths (7-8 mm long, 15-20 mm wingspan) have brown and gray wings veined with a white spot in the center, while the hind wings are light brown to gray. T. leucotretano suffers diapause or a period of inactivity. In most areas of its distribution, the plague is present all year with overlapping generations that feed on the available fruits of their wild or cultivated host plants.

In citrus: the larvae perforate the albedo and generally feed just below the surface of the fruit. The bark around the point of infestation turns yellowish brown as the tissue decomposes and collapses. The infestations cause a premature fall of the fruit. The degree of damage varies greatly from one orchard to another and from one season to another, but can reach up to 90%.

In cotton: the damage caused by T. leucotreta is similar to Pectinophora gossypiella. The larvae penetrate the cotton capsules, first mine on the walls of the capsules and then feed on the seeds. Infested capsules are often invaded by secondary rottences. The presence of larvae is often characterized by the appearance of a filamentous waxy secretion protruding from the entrance orifice.

In stone fruits: the larvae perforate the fruit at the end of the stem and begin to feed around the stone. The infestation can be detected by the presence of brown spots and dark brown excrement.

This species was known for a long time as Cryptophlebia leucotreta transferred the species to the genus Thaumatotibia.

Control is difficult because the moth has many alternative hosts, so reinfestation is likely to occur.

THLE P
Data sheet
Format
Septum
Duration
45 days / 6 weeks
Affects
Fruit trees
Units
1u

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Thaumatotibia (Cryptophlebia) leucotreta

Thaumatotibia (Cryptophlebia) leucotreta (Falso gusano de la manzana)

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