Pest on crop
Onion Thrips on scallion (bunching onion)
Thrips tabaci
Tiny slender insects that rasp leaf surfaces and suck plant juices. Most damaging on onion and garlic where they reduce bulb size and transmit Iris yellow spot virus.
- Pest
- Onion Thrips
- Scientific name
- Thrips tabaci
- Crop
- Scallion (Bunching Onion)
- Total hosts
- 6
Onion Thrips on scallion (bunching onion)
Detailed guidance for this section is being prepared. Check back soon.
Signs on scallion (bunching onion)
- ▸ Silvery-white streaks on leaves
- ▸ Tiny dark fecal spots on leaf surfaces
- ▸ Distorted twisted leaves in severe infestations
- ▸ Stunted bulb development
IPM controls
- ✓ Overhead irrigation reduces populations (thrips dislike wet conditions)
- ✓ Spinosad spray during peak feeding
- ✓ Encourage minute pirate bugs and predatory mites
- ✓ Reflective mulch for repelling adults
- ✓ Avoid excessive nitrogen which makes plants more attractive
Other crops affected by onion thrips
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