SAWFLY LARVAL TOXICITY IN RUMINANTS
 
Description    Larvae of the sawflies LOPHYROTOMA INTERRUPTA in Australia, ARGE PULLATA in Denmark, and PERREYIA FLAVIPES in Uruguay that fall off trees in large numbers are toxic to ruminants eating them. Clinical signs appear to be due to acute hepatic necrosis. Cattle can develop a craving for the larvae.
 
Species   Bovine, Caprine, Ovine
 
Signs   Abnormal behavior, aggression, changing habits, Anorexia, Ataxia, Coma, Diarrhea, Dullness, Dysmetria, Excitement, Generalized weakness, Icterus, Inability to stand, Reluctant to move, Seizures or syncope, Sudden death, Trembling, Tremor, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Weight loss
 
References   Dutra F. Poisoning of cattle and sheep in uraguay by sawfly (perreyia flavipes) larvae. Vet Human Toxicol 1997;39:281
Dadswell LP. The occurrence, cost and control of sawfly larval (lophyrotoma interrupta) poisoning in cattle in queensland 1972-81. Aust Vet J 1985;62:94
Thamsborg SM. Sawfly poisoning in sheep and goats. Vet Rec 1987;121:253
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