Botanic Garden >> Gardening > >> Question and Answer >> Pests

Pine Sawfly Control: Mechanical and Insecticide Options

Pine sawfly larvae eat older needles; trees rarely die. Control by clipping infested branches (bag and destroy) or knocking larvae into soapy water. For large infestations, spray foliage with acephate, malathion, carbaryl, esfenvalerate, rotenone, or pyrethrin—these have residual activity.

Pests: Pine Scale on Skin? It’s Not the Tree Pest; Sawfly Larvae on Bristlecone Pine: Natural Insecticides Work; Sawfly Larvae on Pines: Mechanical Control to Protect Monarch Milkweed; Pine Needles vs. Native Grass: Rake or Keep?; Pine Cone Absence in Massachusetts: Not Necessarily a Problem; White Pine Blister Rust: Girdling Gall = Tree Doomed; Identifying a Tree with Round Cones & Tiny Needles: Bald Cypress; Identifying a Pine Tree from a Photo; Pine Sawfly Larvae: White Worms Eating Needles in Oklahoma; Red-Headed Pine Sawfly Larvae on Deodar Cedar: Act Fast to Save Your Tree

Garden Articles

Diagnosing and Treating Browning Fraser Firs and Cedar Trees

Pine Bark Beetles in Alabama: Prevention via Tree Vigor—Contact Extension for Local Advice

Pine Sawyer Beetle Indoors: Firewood Hitchhiker

Pine Sawyer Beetles Indoors: Firewood Source

Southern Pine Sawyer Beetle: Harmless House Visitor

Pine Sawyer Beetles: Secondary Invaders in Dying Pines

Munching Sound in Pine: Pine Sawyer Beetles in Dying Tree

Plants

Pine Tree Holes in Rows: Sapsucker Woodpecker Damage

Spruce and Pine "Pine Worms": Myth and Free Forester Assessment

Sago Palm Yellowing: Not a Pine, Check for Nutrient or Rot Issues

Pine Needles Under Ponderosa Pines: Mulch Benefit vs. Grass Competition

Improving Flower Beds Under Pine Trees

Using Shredded Pine Cones as Mulch

Diagnosing Pine Tree Decline in Southern Illinois