Plant problems · 7 min read
Are Aphids Causing the Damage? Identify Them Before Treating
Distinguish aphid colonies and feeding symptoms from chewed leaves, old damage, and beneficial insects, then choose a proportionate response.
Read the guideExplore / Plant problems
Plant problems
Identify first. Intervene thoughtfully.
Separate damage, disease and growing-condition problems. Start with observation and prevention, then choose a proportionate response.
Find the guide for your plant problem →
A useful place to start
Work from the evidence you can observe.
Follow the guide that matches the symptom or organism, then check the conditions around it.
01 / Separate yellow-leaf causes
Iron chlorosis or another yellow-leaf problem?
Compare the pattern and growing conditions before adding an amendment.
02 / Identify the insect
Are Aphids Causing the Damage? Identify Them Before Treating
Distinguish presence from damage before deciding whether action is needed.
03 / Compare disease patterns
Powdery mildew vs. downy mildew on cucumbers and squash
Use host and symptom evidence before treating different mildews as interchangeable.
Plant problems: the field guides
Clear explanations. Practical next steps.
Plant problems · 7 min read
Confirm Slug Damage and Protect Vulnerable Plants
Use nighttime inspection, fresh feeding evidence, habitat adjustments, and focused protection to manage slugs without relying on one homemade barrier.
Read the guidePlant problems · 7 min read
Powdery Mildew on Flowers: Confirm It and Decide What Matters
Recognize powdery mildew, distinguish cosmetic infection from serious decline, and improve future performance without expecting a spray to restore damaged leaves.
Read the guide
Plant problems · 5 min read
Fungus Gnats in Pots: Find the Breeding Source and Break the Cycle
Distinguish fungus gnats from other small flies, use sticky traps as monitoring tools, and correct persistent moisture without drying plants beyond their tolerance.
Read the guide
Plant problems · 6 min read
Prevent Garden Weeds Without Pulling the Plants You Want
Identify seedlings and weed life cycles before removal, protect intended volunteers, and use mulch and shallow maintenance without spreading perennial roots.
Read the guidePlant problems · 6 min read
Iron chlorosis or another yellow-leaf problem?
Use leaf age, vein color, root conditions, and soil-test interpretation to investigate yellowing trees and shrubs before adding iron.
Read the guide
Plant problems · 6 min read
Powdery mildew vs. downy mildew on cucumbers and squash
Compare powdery growth, angular leaf lesions, underside fuzz, and disease timing so cucumber and squash mildew problems get the right diagnosis.
Read the guide
Plant problems · 5 min read
Blossom-end rot: identify the damage and steady your watering
Distinguish blossom-end rot from sunscald and other tomato damage, then check roots, moisture delivery, and soil-test evidence.
Read the guidePlant problems · 6 min read
Tomato leaves curling: heat, pests, disease, or herbicide injury?
Use leaf age, growth pattern, visible pests, and garden history to separate physiological tomato leaf roll from problems needing diagnosis.
Read the guidePlant problems · 6 min read
Squash vine borer: identify stem damage and plan prevention
Learn which wilt symptoms suggest squash vine borer, how to inspect stems, and when exclusion, crop choice, and local timing can help.
Read the guide
Plant problems · 6 min read
Cabbageworms, loopers, and caterpillars worth protecting
Compare common cabbage-feeding larvae with black swallowtails, recognize parasitoid clues, and protect brassicas without treating every caterpillar as a pest.
Read the guide
Plant problems · 6 min read
Spider mites or dusty leaves? A close inspection guide
Distinguish removable surface dust from mite feeding, confirm living mites, and choose a focused response that preserves beneficial predators.
Read the guideThe next useful connection.
A successful setup brings the plant, growing conditions and equipment together. These related topics help you work through the next decision.