Tent spider

The tent spider, scientifically known as Uroctea durandi, is a member of the Oecobiidae family. While primarily a predator, it is often noted by growers for its distinct behavior of building tent-like webs on plants, which can interfere with horticultural practices and plant health in specialized environments.

Taxonomically, this species is classified within the order Araneae. Unlike orb-weavers, Uroctea durandi focuses on creating fortified retreats or "tents" rather than expansive aerial webs. These structures are often built in sheltered areas of plants, causing minor structural damage to the epidermis and foliage.

The biological cycle of the species is highly adapted to temperate and Mediterranean climates. The life history involves the female guarding eggs within these tent structures. Their ability to rapidly colonize greenhouse environments during warm months makes them a nuisance for nursery managers and plant collectors.

The damage caused is primarily attributed to the obstruction of leaf surfaces and the accumulation of debris within the tent structures. This can lead to localized necrotic spots, reduced photosynthetic efficiency, and the development of opportunistic fungal pathogens due to trapped moisture inside the silk webs.

Recommended management practices include:

• Manual removal and destruction of silk tents during routine plant inspections.
• Improving greenhouse ventilation to reduce humidity levels that favor spider activity.
• Cleaning plant debris and potential nesting sites from the perimeter of the crop area.
• Targeted application of control agents only when necessary to protect plant aesthetic quality.