Twenty eight spotted lady beetle
Orange beetles with black spots and their yellow spiny grubs scrape the leaves into lacy windows between the veins.
Crops it attacks
Where the damage shows
When to act
Check 20 plants at 5 spots weekly for the spiny yellow grubs, adults and ladder like scraped patches. Act when young plants carry more than 1 grub or adult each on average, after handpicking.
What to spray
- CarbarylIRAC 1AShopeeLazada
- MethomylIRAC 1AShopeeLazada
- MalathionIRAC 1BShopeeLazada
- PhenthoateIRAC 1BShopeeLazada
- FenitrothionIRAC 1BShopeeLazada
- Fenobucarb (BPMC) plus chlorpyrifosIRAC 1A plus 1BShopeeLazada
- Lambda cyhalothrin plus thiamethoxamIRAC 3A plus 4AShopeeLazada
Active ingredients only, never brands. The IRAC group tells how it works: switch to a different group next time, so the pest does not learn to survive it. Spray only when the damage is worth the cost, and only with products registered with the Fertilizer and Pesticide Authority for your crop. Follow the label. The Shopee and Lazada links only show who sells something with that active ingredient, not a recommendation of any seller or product.
How to prevent it
- Crush the yellow egg clusters under the leaves, and handpick adults and spiny grubs in the morning.
- Shake the plants over a basin of soapy water to catch the adults that drop.
- Remove wild nightshade and other weeds of the eggplant family that keep the beetle between crops.
- Do not plant eggplant, potato and tomato one after the other in the same field.
- Destroy crop remains after harvest and plow to expose the pupae.
Natural enemies and biological help
- Small wasps such as Pediobius foveolatus kill the grubs, and spiders, assassin bugs and predatory stink bugs eat them.
- Neem sprays repel the adults and slow the grubs, with little harm to these helpers.
Where this comes from
Not sure it is this one?
Many pests look alike. Send a photo to Anee, the smart farm technician in anee.io. She reads it with your crop, its age and the weather, and tells you what it most likely is and what to do first. In Tagalog or English.