Epilachna (hadda) beetle
The "vegetarian ladybird" — spotted beetles and spiny grubs scrape leaves into a lacy skeleton of parallel scratch marks.
- Pest type
- Leaf-scraping beetle
- Attacks
- Leaves
- Worst in
- Warm growing season
- Main risk
- Lacy skeletonised leaves
Overview
The epilachna or hadda beetle looks like a ladybird — a rounded, coppery-brown beetle with many black spots — but unlike the helpful predatory ladybirds, this one eats plants. It attacks brinjal, cucurbits (cucumber, pumpkin, gourds) and sometimes potato and other crops.
Both the adult beetle and its yellow, spiny (soft-spined) grub feed by scraping the green tissue from the leaf surface between the veins, leaving a characteristic lacy pattern of parallel scratches and a papery skeleton. Heavy feeding dries the leaves and stunts the plant. Because both life stages feed on the leaf surface (not hidden inside), it is easier to manage than a borer — handpicking and timely sprays both work well.
How to identify it
- A characteristic lacy pattern of parallel scrapes on the leaf, drying to a papery skeleton — the green surface is scraped away between the veins.
- Rounded, coppery-brown, many-spotted beetles that look like ladybirds but are feeding on the leaves.
- Yellowish grubs covered in soft branched spines on the leaf underside, feeding alongside the adults.
- Yellow, spindle-shaped eggs laid in clusters on the leaf underside.
The damage it does
- Lacy, skeletonised leaves with reduced photosynthesis; heavy attacks dry the leaves and stunt the plant.
- Both the adult and grub feed, so populations can build quickly on brinjal and cucurbits.
- Weakened plants with reduced flowering and yield in a severe infestation.
- Occasional feeding on the surface of tender fruit in cucurbits.
When to act
- Scout leaves for the first lacy scrapes, beetles, grubs and yellow egg clusters — early handpicking is very effective because everything is on the leaf surface.
- Act while numbers are low; both stages are exposed and easy to reach, so control is straightforward if not left late.
- Watch through the warm growing season when the beetle is most active.
Organic & cultural control
- Handpick and destroy the beetles, grubs and egg clusters — because all stages sit on the leaf, this is highly effective in small plots.
- Spray neem oil / NSKE 5%, which deters feeding and checks the grubs.
- Remove and destroy heavily skeletonised leaves and crop residues after harvest, and rotate crops to reduce carry-over.
- Conserve true predatory ladybirds and other natural enemies — do not confuse them with the spotted pest.
Chemical control
- Where handpicking cannot keep up, use a CIB&RC-registered insecticide for the crop directed at the leaves where beetles and grubs feed.
- Because both stages are exposed on the leaf surface, thorough foliar coverage gives good control.
- Observe the pre-harvest interval strictly on brinjal and cucurbits, which are picked frequently and eaten directly.
- Confirm the current recommendation and dose for your crop and zone with your local KVK.
Crops most at risk
Where this problem is called out in our crop guides — open a crop for the full package of practices.
Frequently asked questions
My brinjal leaves have a lacy pattern of scratches. What causes it?
That lacy skeleton of parallel scrapes is the epilachna (hadda) beetle. The beetle and its spiny grub both scrape the green tissue from the leaf surface between the veins, leaving a papery, lace-like pattern. Look for a spotted, ladybird-like beetle and yellow spiny grubs on the leaves — and handpick them, as all stages sit on the surface.
Is this the helpful ladybird beetle?
No — this is the "vegetarian ladybird". True ladybirds are predators that eat aphids and are beneficial, but the epilachna/hadda beetle looks similar yet feeds on the plant. Tell them apart by behaviour: if the spotted beetle is scraping leaves into a lacy pattern (often with yellow spiny grubs nearby), it is the pest, not a friend.
How do I control it without heavy spraying?
Handpicking is unusually effective here because the beetles, spiny grubs and egg clusters all sit on the leaf surface — remove and destroy them, back it up with neem, and clear skeletonised leaves and residues. Reserve a registered insecticide (with good leaf coverage and the pre-harvest interval respected) for when handpicking cannot keep up.
Symptoms and control measures follow ICAR, KVK and state agricultural-university package-of-practices; any named chemical is a registered use. Always read the product label and confirm the dose for your crop and zone. editorial policy.