Cerambyx dux beetle

Systematic position: This pest belongs to the order Coleoptera and the family Cerambycidae, commonly known as longhorn beetles. It is recognized as a serious wood-boring insect capable of causing significant damage to woody plants in its native range.

Affected crops: It primarily targets stone fruit trees. Almond trees (Prunus dulcis) are particularly susceptible, along with various other species within the Prunus genus. Infestations lead to severe degradation of orchard health over time.

Biology and life cycle: The life cycle spans several years, spent mostly within the wood of the host tree. Females lay eggs in bark crevices. Upon hatching, larvae bore into the tree, creating complex tunnels where they feed and develop. Pupation occurs inside the timber before the adult beetle emerges.

Damage and harmfulness: The larvae disrupt nutrient and water transport by consuming internal tissues of the trunk and major branches. Visible damage includes boreholes and piles of frass. Weakened trees exhibit reduced vigor, premature yellowing of leaves, and ultimately death if the infestation is not managed.

Protection measures: Management requires a combination of cultural and chemical strategies. Sanitation is critical: removing and destroying infested trees prevents the spread of the population. Keeping trees healthy through proper irrigation and pruning helps. Applying insecticides during the flight period and using pheromone traps are also recommended.