Keel-backed treehopper

The keel-backed treehopper (Entylia carinata) is an insect belonging to the family Membracidae within the order Hemiptera. This species is easily recognizable by the distinct, elevated keel on its pronotum, which resembles a hump, providing excellent camouflage against the stems and leaves of its host plants.

These pests have a broad host range, primarily feeding on herbaceous plants within the Asteraceae, Fabaceae, and Solanaceae families. They are frequently observed on sunflowers, thistles, and various ornamental species, where they congregate in large groups to feed on the nutrient-rich phloem sap of the plants.

The life cycle involves incomplete metamorphosis, moving through several nymphal instars before reaching adulthood. Females typically lay their eggs in clusters within plant tissues. The nymphs and adults often engage in a symbiotic relationship with ants, which protect the treehoppers from predators in exchange for the sugary honeydew produced by the insects during feeding.

Damage is caused by the sap-sucking activity of both nymphs and adults, which leads to stunted growth, leaf yellowing (chlorosis), and tissue deformation. Furthermore, the secretion of honeydew promotes the growth of sooty mold, which blocks sunlight from the leaf surface and reduces the plant's overall vigor and yield quality.

Integrated Pest Management (IPM) is the most effective approach to controlling this pest. Cultural practices, such as removing host weeds around the perimeter of agricultural fields, are crucial for prevention. If populations reach an economic threshold, targeted insecticide applications may be necessary, though care should be taken to preserve the population of natural predators and parasitoids.

• Regular monitoring of host plants for nymph clusters.
• Cultural control by eliminating nearby weed reservoirs.
• Strategic application of systemic insecticides when necessary.
• Encouraging natural predators such as lady beetles and lacewings.