Gadenin日本語Get the appCheck these first
- What shape is the damage: round holes, only veins left, white trails, or a pale stippling?
- Where are the insects or droppings: under the leaves, on new shoots, or at the base?
- If nothing is visible by day, check at night or early morning for cutworms and slugs.
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.
Scale Insects
Small white or brown shell-like insects dot the shoots and leaves. The plant loses vigor and honeydew-fed sooty mold blackens the shoots and foliage.
General description; not specific to this plant.
How to identify and treat: Scale InsectsLonghorn Beetles
Sawdust-like frass is pushed out at the trunk base or branch crotches. The wood is hollowed out, the tree loses vigor, and the trunk may snap in strong wind.
General description; not specific to this plant.
How to identify and treat: Longhorn BeetlesLeafrollers
Leaves are webbed into tubes or folded in half, with a green or brown caterpillar inside. Shoot tips and fruit surfaces are also gnawed, disrupting growth.
General description; not specific to this plant.
How to identify and treat: LeafrollersOther possible causes
- Mealybugs — White cottony masses appear at leaf axils, on fruit clusters and at the edge of the pottin…
- Citrus Leafminer — Silvery winding mines run through newly expanded young leaves, which crinkle and roll inwa…
- Stink Bugs — Small feeding punctures on fruit become sunken or turn spongy and discolored. On legumes t…
- Fruit Borers — Small entry holes with gummy exudate and frass appear on the fruit surface. On new shoots …
- Bagworms — Bag-shaped cases covered in twigs and leaf fragments hang from the branches. Leaves are ea…
- Root-lesion Nematode — Elongated blackish brown necrotic lesions form on the root surface and fine roots rot away…
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what kumquat pests and bug damage 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.