The larva of io Moth possesses a defense mechanism involving urticating hairs that, upon contact, can release irritating toxins. Touching these hairs may result in mild to severe dermatitis, characterized by pain, redness, and itching. While generally not life-threatening, the discomfort can persist for hours or possibly days, with complications being rare but more serious if many caterpillars are handled.

Io Moth's larvae stage can lead to allergies in humans through contact with its hair. These allergic reactions may affect a small number of people and can range from mild to severe, depending on individual sensitivities. Typical symptoms include skin irritation or rash. Due to variation in severity, those handling io Moth should exercise caution and consider wearing protective clothing.

The trouble caused by io Moth arises from its larval defense mechanism, which consists of urticating hairs. These hairs contain irritants that can provoke an allergic reaction upon contact with human skin. Varying levels of dermatitis can ensue, which includes symptoms such as pain, itching, and redness. The degree of discomfort varies and can be exacerbated by multiple contacts with these larvae.

To prevent issues associated with io Moth, minimize direct physical contact. Protective clothing, such as gloves and long sleeves, can be worn when handling plants where these larvae are common. Additionally, educating oneself about io Moth's appearance and habitats helps to avoid contact. Keeping home gardens and public parks well-maintained also reduces the likelihood of unwanted encounters.

If contact with io Moth occurs, immediately washing the affected area with soap and water can help alleviate symptoms. Applying cold compresses to the skin can provide relief from irritation. To minimize adverse effects, it's important not to scratch the affected area, which can worsen symptoms or lead to infection. During recovery, keeping the area clean and monitoring for any signs of increased irritation or infection is advised. Should symptoms persist or escalate, seek advice from a healthcare professional while adhering to non-medication based guidelines.

Larvae of io Moth are indiscriminate feeders, often leading to defoliation of host plants. Depending on the population, the damage can range from mild to severe, with potential consequences for plant health and productivity.