按症状查找Succulents & Cacti疾病

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A black sooty powder or film coats the surface of leaves and stems

A sooty black residue may appear on leaf surfaces

Affected areas dry out, becoming sunken or papery

Affected areas turn brown to black and dry out or die

Affected tissue becomes water-soaked and collapses easily when touched

After thawing, the plant remains collapsed and does not recover

An unpleasant odor may be present at the affected site

Cacti may develop sunken, discolored patches on their surface

Cacti may develop white to brown patches spreading across the surface

Closer inspection may reveal scale insects or aphids on the plant

Discolored patches are permanent and do not recover

Leaf color deteriorates as photosynthesis is impaired

Leaves become water-soaked in appearance and turn translucent or soft

Leaves drop off easily in succession

Leaves gradually thin, lose color, or appear dull

Leaves may yellow or shrivel in affected areas

Leaves turn pale yellowish-green

Lower leaves and the base of the stem become soft and mushy

Overall plant growth slows and new shoots fail to develop

Part of a stem or leaf suddenly turns black and becomes soft

Plant growth stalls without any apparent environmental cause

Plant remains wilted even after watering

Rot can spread rapidly upward or downward through the stem

Small white, cream, or brown shell-like bumps attach to stems and leaf bases

Spacing between leaves widens, distorting the natural shape

Stems elongate abnormally with wide gaps between nodes

The plant develops a spindly, stretched appearance compared to normal growth

The plant remains wilted after watering without recovering

The sooty coating can sometimes be wiped off with a finger or cloth

The stem base and lower stem turn brown to black

White waxy or cottony deposits found on roots or near the soil surface

White, cream, or brown discoloration appears on the sun-facing side of leaves