Crush small larvae as they are found. Check the label of insecticides registered for pests of roses and other flowers to see if sawflies are listed. Read and follow instructions to protect pollinators. Be aware that Bt (Bacillus thurengiensis) products DO NOT work on this pest since it is the larva of a sawfly rather than a caterpillar. For more information, contact the Pulaski County Extension Service at 606-679-6361 and request UK publication ID-118 Roses. Become a fan of Pulaski County Horticulture on Facebook and follow @hortagentbeth on Twitter, kyplants on Instagram, and follow us on YouTube at Pulaski County Horticulture.