Lesser mottled grasshopper

The Lesser mottled grasshopper (Chorthippus mollis) is a member of the Acrididae family within the order Orthoptera. It is primarily recognized as a meadow-dwelling insect that can become a pest in agricultural settings, particularly in grasslands and grain fields when conditions favor population spikes.

This species feeds mainly on various grasses. In agricultural environments, it poses a threat to pastures, hayfields, and cereal crops. By consuming the leaves of these plants, the grasshopper reduces both the biomass yield and the nutritional quality of the forage, which is critical for livestock management.

The life cycle of this species consists of an egg stage, several nymphal instars, and the adult stage. The insect overwinters as eggs deposited in the soil within protective pods. After hatching in the spring, the nymphs undergo rapid development, feeding greedily on green vegetation, which often coincides with the most sensitive growth phases of various crops.

Damage symptoms include ragged leaf edges and thinning of plant stands. When population densities are high, the grasshoppers can cause significant defoliation, leading to stunted plant growth and reduced grain production. In severe cases, the economic impact on forage quality is substantial, as the plants lose their ability to recover efficiently.

Effective management strategies combine cultural and chemical control measures. Deep plowing of infested areas is highly recommended as it disrupts the overwintering pods and reduces the survival rate of the next generation. If threshold levels of damage are exceeded, localized application of insecticides targeting the early nymphal stages is the most effective approach.