Exclamation froghopper

Systematic position: The Exclamation froghopper (Neophilaenus exclamationis) is a member of the Hemiptera order and the Aphrophoridae family. This species is recognized for its distinctive markings and its specific ecological niche within grassland and cereal ecosystems.

Host crops: This pest primarily affects various members of the Poaceae family. It is commonly found in cereal crop fields, such as wheat and barley, and is frequently observed in pastures and meadows where wild grasses serve as a natural reservoir.

Biology and life cycle: The insect undergoes incomplete metamorphosis. It overwinters in the egg stage, typically deposited on the stems or leaves of host plants. Upon hatching, nymphs produce a characteristic frothy mass (cuckoo spit) to protect themselves while feeding and developing through five distinct larval instars.

Damage and economic significance: Both nymphs and adults feed by piercing plant tissues and sucking out phloem sap. This feeding activity causes localized yellowing (chlorosis), stunted development, and reduced vigor of the host plant. Beyond direct physical damage, these insects are known to act as vectors for various plant viruses.

Control measures: Integrated pest management strategies are essential for control. Key methods include:

• Maintaining clean field borders by removing wild grass hosts.
• Monitoring population levels using sweep nets during the spring.
• Applying targeted insecticides only when economic thresholds are reached.
• Promoting natural predators such as ground beetles and spiders.