The Hadda beetle was first found in Auckland in 2010. It has spread to become a pest of gardens feeding on plants such as tomatoes, potatoes, nightshade and Datura.
Hadda beetles are 6-7 mm long, round, yellow orange with 26 black spots. They look like a ladybird beetle. Click here to see learn how to tell them apart from young green vegetable bugs and the fungus feeding ladybird. Both adults and larvae feed on plants.
The beetles and larvae scrape away the leaf surface from the main leaf vein leaving irregular holes. Damage gives leaves a distinctive lace-like appearance.
On crops such as tomatoes and potatoes:
- Apply Organic Insect Control late in the day.
- Re-apply at 203 day intervals.
On ornamentals and shrubs such as Datura and nightshade:
Did you know
Damage – the leaf surface is scraped away from the main leaf vein leaving irregular holes or strips. Heavy feeding damage give leaves a distinctive lace-like appearance. Both adults and larvae feed on the host plants.
What are Adjuvants and Should You Use Them?
Adjuvants are substances that can be added to sprays to improve the spray’s performance. Those in agriculture, horticulture, nurseries and other commercial operators will be familiar with some adjuvants but should home gardeners also use such products?
Deals with Hadda Beetle
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- Organic Insect Control with Pyrethrum
- Plant Health Insect Hit
- Plant Health Insect Hit Granules
- Plant Health Rose Force
- Plant Health Spectrum