Blue willow beetle

[9] It is univoltine in Sweden[2] but can produce multiple generations per year in other parts of its distribution range.

[12] Predators of blue willow beetle eggs include A. nemorum and Orthotylus marginalis.

Larval predators include A. nemorum, the bug Rhacognathus punctatus,[10] a syrphid fly (possibly Parasyrphus nigritarsis)[13] and the wasp Symmorphus bifasciatus.

[16] For plantations of common osier (Salix viminalis), herbivory reducing biomass production by up to 40% has been estimated.

[17] It is susceptible to Bacillus thuringiensis tenebrionis and also Spinosad when treatment is applied to affected plants.