Yellow-striped grasshopper

The yellow-striped grasshopper (Abracris flavolineata) belongs to the order Orthoptera and the family Acrididae. This insect is recognized as a significant pest of agricultural crops in Central and South America, where its population dynamics can lead to severe outbreaks under favorable environmental conditions.

The species is highly polyphagous, attacking a wide array of crops including soybeans, maize, wheat, and various vegetable species. Due to its adaptability, it frequently transitions from natural habitats and field margins into cultivated crops, posing a continuous risk during the growing season.

The life cycle follows a hemimetabolous pattern, progressing through egg, nymph, and adult stages. Females lay their eggs in the soil, which serve as a protective environment for overwintering or development. Nymphs pass through several instars before reaching adulthood; the duration of these stages is highly dependent on ambient temperature and rainfall patterns.

In terms of damage, both nymphs and adults are defoliators. They feed on the leaf tissue of plants, resulting in ragged holes or total loss of the leaf blade. Severe infestations can cause total defoliation, which stunts plant growth, reduces the photosynthetic capacity, and ultimately compromises grain and biomass yield.

Management strategies focus on integrated pest management (IPM). Key practices include:

• Cultural controls such as monitoring and eradicating host weeds.
• Tillage operations that disrupt egg pods in the soil.
• Chemical intervention using registered insecticides when populations exceed the established economic injury levels.