Honeysuckle sawfly

Systematic position: The honeysuckle sawfly (lat. Zaraea fasciata) belongs to the order Hymenoptera and the family Cimbicidae. It is a specialized pest known for its distinct larvae that feed specifically on honeysuckle plants.

Host plants: The primary hosts are various species of the genus Lonicera (honeysuckle). This insect can affect both decorative climbing honeysuckle and edible shrub varieties, potentially causing significant aesthetic and physiological damage to the host.

Biology and life cycle: Adults emerge in late spring to early summer. After mating, females insert eggs into the leaf tissues. Larvae, which resemble caterpillars (false caterpillars), feed voraciously on the foliage. The insect typically undergoes one generation per year, spending the winter in a cocoon in the soil surface layer.

Nature of damage: The larvae cause skeletonization of the leaves, eating away the leaf blade while leaving the veins intact. In cases of severe infestation, the plant can be completely stripped of its foliage, which weakens the bush and stunts its growth for the following season.

Control measures: Cultural practices include maintaining soil health and removing leaf litter under bushes to destroy overwintering cocoons. If chemical intervention is necessary, apply systemic insecticides during the early larval stages, ensuring safety guidelines for edible crops are strictly followed before harvest.