Pest · Orthoptera (locusts)

Cryptocatantops

Cryptocatantops

Description

How to identify

Cryptocatantops is a genus of grasshoppers belonging to the family Acrididae, order Orthoptera. These insects typically exhibit the classic morphology of locusts, characterized by strong hind legs adapted for jumping and specialized mouthparts for chewing plant tissue.

The coloration of these insects serves as excellent camouflage, usually varying in shades of brown, green, or grey to match their natural habitat. Adults are equipped with well-developed wings, allowing them to migrate between fields and forage across large areas.

Their life cycle involves incomplete metamorphosis, moving through egg, nymph, and adult stages. Females deposit eggs in the soil, protecting them within hardened foam pods to survive environmental stressors like cold or dehydration.

Nymphs resemble smaller versions of the adults but lack functional wings. As they progress through several instars, their appetite grows significantly, leading to increased pressure on surrounding vegetation.

While often found as solitary individuals, specific conditions can trigger population spikes. In these cases, their feeding habits can shift, resulting in localized outbreaks that pose a threat to various crop types.

What it damages

Cryptocatantops is a polyphagous pest, meaning it feeds on a wide range of botanical species. Major crops, including cereals, vegetables, and various industrial plants, are frequently at risk from their feeding activity.

Both nymphs and adults contribute to crop destruction. They possess strong mandibles that allow them to consume large portions of leaf tissue, often devouring everything except the tough central veins.

Damage to the reproductive stages of crops, such as heads of grain or developing flowers, can cause irreversible losses in yield. When populations are high, complete defoliation of plants can occur in a very short time.

During dry seasons, when vegetation in wild meadows dries up, these grasshoppers often migrate to irrigated farmlands in search of succulent material, leading to sudden and significant economic damage.

Additionally, the physical damage inflicted on the plant's surface can serve as an entry point for various plant pathogens, further weakening the crop and reducing its overall productivity and vigor.

Signs of infestation

The most prominent sign of a Cryptocatantops infestation is the presence of jagged or "notched" leaf edges, where the insect has consumed the softer parts of the foliage.

Observing adult grasshoppers jumping or flying away upon disturbance is a common indicator of their presence in a field. They are most active during warm, sunny hours of the day.

Inspecting the soil surface and the base of plants in the morning can reveal the presence of nymphs, which often congregate in sheltered areas before moving to feed on leaves.

Early-stage damage may be subtle, but as the population increases, noticeable gaps in the canopy or skeletonized plants become apparent throughout the field.

The presence of fecal pellets (frass) on the leaves or the ground beneath the plants provides a clear signal that the pest has been feeding in that specific location.

Control measures

Controlling Cryptocatantops requires an integrated approach that combines preventive agricultural practices with targeted chemical interventions when thresholds are exceeded.

Deep plowing of the soil during the fall is a highly effective cultural control method, as it exposes the egg pods to harsh weather conditions and mechanical damage, preventing successful hatching.

Sanitation practices, such as maintaining weed-free field margins and non-crop areas, are essential to remove potential breeding sites and reduce the pest's access to host vegetation.

If population densities surpass economic thresholds, authorized insecticides, such as organophosphates or pyrethroids, can be applied to suppress nymphs, which are generally more vulnerable than adults.

Regular scouting using sweep nets or visual monitoring allows farmers to identify early infestation clusters, enabling timely and targeted action that minimizes the need for large-scale chemical applications.

Biology

Taxonomy

Latin name
Cryptocatantops
Order
Orthoptera (locusts)
Family
Acrididae
EPPO code
CCNPSP
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