Tiger spiketail

The Cordulegaster erronea, commonly known as the Tiger spiketail, belongs to the order Odonata and the family Cordulegastridae. As a large, predatory insect, it is an important member of aquatic ecosystems. While sometimes misidentified as a pest due to its size and appearance, it does not feed on agricultural crops.

The biological cycle of the Tiger spiketail is defined by a prolonged larval stage. Larvae live in the substrate of clean, fast-flowing streams and springs. They are highly efficient predators of aquatic invertebrates, playing a crucial role in maintaining the health and biodiversity of local water bodies.

Regarding agricultural impact, the species poses no threat to crops. It is not a phytophagous insect and does not damage foliage, fruit, or roots. Any concern regarding its presence in agricultural landscapes usually stems from a misunderstanding of its role in the food web or its interactions with irrigation infrastructure.

In terms of damage and economic significance, the insect is considered harmless. In many cases, adult dragonflies act as natural predators, hunting smaller insects such as mosquitoes, gnats, and various small crop pests. They serve as a natural biological control agent within the agricultural ecosystem.

No protective measures against the Tiger spiketail are required. To preserve these beneficial predators, farmers should focus on environmental conservation:

• Protect water quality in irrigation sources.
• Maintain buffer strips near stream beds.
• Avoid the unnecessary use of non-selective insecticides that could harm dragonfly populations.