Possible Problems Of Plum Trees
Symptoms Probable Cause
Leaves curled and discolored; honeydew evident on undersides of leaves, sometimes sooty mold forms - Aphids
Black sooty mold on honeydew made by ants herding aphids. - Ants Herding Aphids
Many holes in trunk and branches; small limbs girdled sawdust at holes - Borers
Skeletonized leaves - Cankerworms
Ends of twigs die and fall off - Cicada
Fruit falls, crescent –shaped cuts in skin of fruit - Curculios
Small misshapen fruits - Larvae Of Fruit Flies
Holes in leaves and flowers - Japanese Beetles
Holes in flowers; leaves rolled up - Leafrollers
Cottony white masses on roots, stems, branches leaves; reduced plant vigor - Mealybugs
Weaken plant, stunting growth, fewer blooms and fruit. - Sawflies
Leaves yellow, drop; bumps on leaves and stems; sometimes sticky material on leaves - Scale
Leaves stippled, yellow, dirty; webbing on interior stems of plant - Spider Mites
Webbed nest in tree branches filled with caterpillars - Tent Caterpillars
Much foliage is eaten starting from top of tree down - Caterpillar Of Tussock Moth
Small brown spot; fruit matures and spot enlarges to rot part or all of fruit - Brown Rot Of Stone Fruit
Roots, stems and/or crowns develop tumors (galls); outer layer turns brown and corky. - Crown Gall
Fan-shaped plaques of white fungal strands between bark and wood of roots and lower trunk; armillaria mellea - Oak Root Fungus
White spots on leaves; eventually entire leaf is covered with powder - Powdery Mildew, A Fungal Disease
Orange or brown pustules on leaves - Rust, A Fungal Disease
Skin pecked and portion of fruit eaten - Birds
Young tree seedlings wilt, roots gnawed, plant dies - Pocket Gophers
