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Onion Thrips: signs and treatment in Jamaica
Tiny pests that concentrate deep in the leaf axils of onions. PlantArmor's crop guides list onion thrips as a common problem on onion.
Signs to look for
- Leaves turn silvery and heavily scarred
- Tips of leaves dry up and turn brown
- Bulb size is severely reduced
What to do
Crops it affects
Questions growers ask
How do I recognise onion thrips?
Tiny pests that concentrate deep in the leaf axils of onions. The signs to look for: Leaves turn silvery and heavily scarred. Tips of leaves dry up and turn brown. Bulb size is severely reduced.
What should I do about onion thrips?
Apply Spinosad or Abamectin with a heavy surfactant/sticker so it reaches down into the leaf axils. Always read the product label and observe the registered rate, re-entry period and pre-harvest interval before you apply any pesticide.
Which crops are affected by onion thrips in Jamaica?
PlantArmor's crop guides list onion thrips as a common problem on onion.
Check it in the field
PlantArmor's reference library works offline, so you can compare what you are seeing against it standing in the plot, then log the spray you use along with its re-entry and pre-harvest intervals. Free to use.
This description and treatment come from the same reference library the PlantArmor app uses in the field. Pesticide registrations and permitted uses change — always read the current product label and observe the stated rate, re-entry period and pre-harvest interval.