174 diagnosis guides

Problems

Diseases, insects and animal damage. Each guide shows how to confirm the problem before you spend money treating it.

Cluster of orange aphids on a rose stem with a ladybug predator approachingProblemHow to Get Rid of Aphids OutdoorsHealthy purple aster flowers in a late-summer garden borderProblemAster yellowsYellow tomato blossoms on the vine showing flowers that may drop before setting fruitProblemBlossom Drop on Tomato and PepperTomato fruit with classic blossom end rot lesion at the calyx endProblemBlossom end rotBrown leaf tips on a dracaena houseplant from fluoride toxicity and dry air indoorsProblemBrown Tips on Plant LeavesImported cabbageworm (Pieris rapae) larva and frass on a brassica seedling trayProblemCabbage Worms on Broccoli and KaleStriped cucumber beetle Acalymma vittatum on a cucumber leaf with three distinct black longitudinal stripesProblemCucumber Beetle ControlGarden bed planted with deer-resistant perennials: lavender, catmint, yarrow, Russian sage, salvia, and bee balm in massed plantingsProblemDeer-Resistant PerennialsPear tree branch with classic fire blight symptoms showing shepherd's crook curl at the tip with blackened wilted leaves and dark cankersProblemFire BlightHealthy green peony plant with abundant lush foliage but only a few unopened buds and no open bloomsProblemFlowers Not BloomingTomato plant with fusarium wilt showing asymmetric one-sided yellowing where only one side has wilted lower leavesProblemFusarium Wilt in TomatoHydrangea leaves showing brown edge scorch damage from heat or droughtProblemBrown Leaves on Hydrangea

All problems guides, A–Z

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I

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