Sugar Maple Yellow Fungus and Black Leaves: Disease Overview

Sugar maple covered in yellow fungus; leaves turning black or with black holes. Owner asks if tree can be saved. Common Sugar Maple Diseases Anthracnose (Gloeosporium): necrotic leaf spots turning brown/purple/black. Ta

Silver Maple Stumps Oozing Orange Slime: Harmless Slime Mold

Two of four fresh silver maple stumps (cut April) ooze foul-smelling orange slime attracting flies. Near vegetable garden, kids, dog. Owner concerned about health hazards. What It Is Common slime mold on fresh stumps wi

Japanese Maple Yellow Spots: Environmental Stress, Not Disease

Transplanted homegrown Japanese maple shows yellowish raised spots on leaf edges. Mother tree has fewer spots. Photo attached. Diagnosis: Environmental, Not Pathogenic Spots not a recognized infectious disease. Uniform

White Oak Progressive Branch Dieback: Internal Decay Suspected

Older white oak in Michigan shows June browning starting 5 years ago—one branch, then more each year, not same branches. Leaves persist until fall. Insecticides, iron, fertilizer failed. Likely Internal Decay Progressiv

Elm Trees with Holes in Leaves: Elm Leaf Beetle Damage

Multiple elms in Colorado show shot-hole leaf damage. One removed due to weakness/branch breakage (arborist blamed squirrels). Two transplanted saplings from same soil now show same damage. No visible insects. Diagnosis

Pussy Willow Trunk Darkening and Dead Branches: Fungal Management

30-year-old pussy willows show blackening at trunk base, some small branches dead. Owner considers peroxide scrub or removal. Fungal Process Likely Wet seasons promote fungal issues. Not a reason to remove tree—only sma

Aspen Leaf Blisters and Black Spots: Yellow Leaf Blister Disease

3-year-old aspens (3 feet apart) show hollow blister-like bumps on 90% of leaves (worse lower down). Second tree has black leaf spots. Previous aphid infestation controlled with ladybugs. Primary Diagnosis: Yellow Leaf

Elm Tree Losing Leaves with Larvae: Sawfly or Other Insect?

Elm in June losing leaves heavily despite good watering. Larvae inside leaves, red wasp-like insects on driveway. Owner suspects sawflies. Critical First Step: Accurate Identification Insect ID determines treatment urge

Hibiscus Yellowing Lower Leaves: Sunlight and Watering Fixes

Large potted hibiscus on east-facing patio (morning sun) drops yellow lower leaves daily despite reduced watering. New growth healthy, many buds. Monthly Miracle-Gro. Last year buds dropped before opening. Key Factors D

Tree with Black Scarring and Hollow Branches: Hypoxylon Canker

Tree shows black scarring to top, splitting/cracking bark, black moldy rings on dead cut branches, hollow black/ashy interior. Top slightly wilting, leaves unspotted. Diagnosis: Hypoxylon Canker Black fungal growth indi

Live Oak Bark Falling Off: Squirrel Damage, Not Oak Wilt

Live oak in Austin, TX (drought area, irrigated lawn) shows patches of missing bark on 2-3 inch branches, with bark pieces on ground. Tree has full green canopy but increased leaf drop for 2 years. No insects seen on bar

Spider Plant Root Rot: Light, Repotting, and Recovery

Spider plant with root rot: leaves blacken at base and die sequentially. Bulb-like roots are black. Repotting in fresh soil didnt help. Owner moved plant to water as last resort. Primary Issue: Insufficient Light Spider

Heirloom Rose Bush with Black Spot: Sanitation and Fungicide Program

20+ year old Seven Sisters rose (4x3) shows black spots, yellowing leaves, bare canes. Blooms 2-3 times yearly but unpruned and unfertilized for over a year. Owner wants to save this sentimental plant. Black Spot Manage

Pin Oak Sudden Leaf Browning: Drip Irrigation and Trunk Cracks

5-year-old pin oak in San Joaquin Valley, CA, suddenly shows all leaves brown but attached. On drip system with moist soil at trunk. Trunk base has minor cracking. No chemical exposure. Weather normal but windier. Poten

Grey-White Circles on Lilac Trunk: Need Photo for Identification

Lilac tree shows grey-white circular growths on trunk. Owner asks what fertilizer to use. Expert requests clear photos for accurate identification before recommending treatment. Next Steps Submit focused, well-lit photo

Meyer Lemon Tiny Black Fruit: Normal Abortion or Transplant Shock?

A 6-month-old ground-planted Meyer lemon in Nevada desert (100°F+ summers) has normal ripening fruit from planting, but new pea-sized fruit turn black. Tree gets morning sun, daily 8-minute irrigation, and was fertilized

Indian Hawthorn Leaf Holes: Cercospora Leaf Spot Treatment

New Indian hawthorns show small holes in leaves preceded by brown spots (3/8–1/4 inch). Not Entomosporium leaf spot. Likely Cercospora leaf spot or similar fungal disease. Plants otherwise healthy. Treatment Protocol Ap

Pine Tree Yellowing Needles and White Sudsy Substance: Insect Identification

Eastern white pines in central Maine show yellowing/browning needles on lower branches and white frothy material on some branches. Grayish bark patches are likely harmless lichens. The white substance suggests insects: p

African Violet Leaves Browning and Dying: Root Rot and Care Tips

A long-healthy African violet with white and green foliage has lost 75% of its leaves to brown centers that spread until leaves die. No pests are visible. Possible causes include water fluctuations (too wet or too dry) o

Weeping Redbud Leaves Drying Up: Watering and Planting Depth Issues

A one-year-old weeping redbud in Vancouver, WA, bloomed beautifully but now shows leaves systematically drying to a crisp without color change. The tree has drip irrigation and was recently fertilized. The owner replante