Gadenin日本語Get the appCheck these first
- Are the stems stretched with long gaps between leaves? That is a lack of light.
- Are new leaves curled, twisted, or unusually small? Think virus or sap-sucking pests.
- Are the leaves dark and lush but there are no flowers or fruit? That is too much nitrogen.
Most likely causes
From the pests and diseases recorded for this plant, the ones whose symptoms match, most serious first. Symptoms alone rarely confirm a cause, so use the linked page to check the signs and treatment.
Cucumber Mosaic Virus
New leaves show a yellow-green mosaic, crinkle, and the whole plant becomes stunted. Fruit colors unevenly and grows misshapen.
How to identify and treat: Cucumber Mosaic VirusRoot-knot Nematode
The plant wilts in the daytime and does not recover with feeding or watering. Pull it up and the roots carry beaded chains of galls of varying size with few fine roots.
How to identify and treat: Root-knot NematodeZucchini Yellow Mosaic
Strong yellow mottled mosaic appears on the leaves, which become narrow and shredded in shape. Fruit is knobbly and lumpy, twisted and bent.
General description; not specific to this plant.
How to identify and treat: Zucchini Yellow MosaicOther possible causes
- Melon Yellow Spot Virus — Numerous small yellow spots appear on the leaves and later turn necrotic so the leaf dies.…
- Whiteflies — Shake the plant and a cloud of tiny white insects flies up. Nymphs stay fixed on leaf unde…
- Etiolation — Internodes stretch long, stems are thin and leaf color is pale. The plant topples easily a…
- Watermelon Mosaic Virus — Leaves show a yellow-green mosaic, crinkle and stay small. Vine extension is poor and frui…
- Tomato Spotted Wilt — Brown necrotic spots and ring patterns appear on the leaves and the growing tips shrivel a…
- Root Rot — Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plan…
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what cucumber not growing well is and what to try. What it cannot tell you is what actually happened to someone who had it on the same plant, at the same point in the season, and what they did next.
Gadenin is a free garden journal built around that. You photograph the plant, tag what you are seeing, and the entries line up by date for each plant you grow.
- Tag the problem and the app tells you how many other growers have logged the same thing on the same plant.
- Growers who make their records public can be followed, so you can read what they did and how it turned out.
- Next season your own entries come back at the same point in the year, so you check the plant before it starts.
Free on iPhone. Recording, tagging and reading public records cost nothing.