Romaleidae
The Romaleidae are a family of grasshoppers belonging to the superfamily Acridoidea. While they share characteristics with common locusts, they constitute a distinct group of pests known for their robust physical build and significant destructive potential within their native ranges, particularly throughout the Americas.
What the section contains
Eastern lubber grasshopper
Romalea microptera
Eastern lubber grasshopper
Romalea
Giant red-winged locust
Tropidacris collaris
Tropidacris
Tropidacris
Xyleus
Xyleus
Xyleus laevipes
Xyleus laevipes
Zoniopoda
Zoniopoda
Zoniopoda iheringi
Zoniopoda iheringi
Zoniopoda omnicolor
Zoniopoda omnicolor
Zoniopoda tarsata
Zoniopoda tarsata
Romaleidae
These insects are polyphagous and known to cause damage to a diverse array of plant species. Agricultural sectors, including coffee, cacao, citrus, and various staple crops like maize, frequently suffer from feeding pressure exerted by Romaleidae nymphs and adults. Their ability to consume large volumes of plant tissue makes them a primary concern for local farmers.
The life cycle of Romaleidae follows a hemimetabolous pattern, progressing through egg, nymph, and adult stages. Eggs are deposited in soil clutches, often timing their hatching with seasonal climate shifts. As nymphs progress through their instars, their dietary requirements increase significantly, leading to accelerated consumption rates and increased visibility of the pest.
Feeding damage is characterized by the consumption of leaves, shoots, and sometimes even the bark of younger plants. This defoliation severely stresses the plants, hindering their ability to perform photosynthesis and leading to stunted growth or total plant failure. Such damage can be particularly devastating for cash crops that require healthy foliage to produce yield.
Effective management requires a combination of monitoring and intervention.
- Deep tillage to disrupt egg sites.
- Application of contact or systemic insecticides during early nymphal stages.
- Utilization of pheromone or light traps for detection.
- Biological control options using fungal pathogens.