Lucilia sericata

Unit of packaging
Lucilia sericata (common green bottle fly)
Pack size: Cardboard tube
Contains: 2 litre Lucilia sericata pupae (30,000 flies)


Lucilia sericata flies are used for difficult or very small pollination applications in seed crops. They therefore make the perfect complement to bumblebees and honeybees for many seed producers.

Difficult pollination occurs regularly in hybridisation in which one or both parental lines produce too little pollen or nectar – if any at all – or if the parental lines are not attractive to “regular” pollinators.

Natupol Fly can also be used if only a few flowers need to be pollinated and the colonies of regular commercial pollinators are simply too large.

Lucilia flies (Natupol Fly) are used in the following crops, amongst others:

  • Cruciferae (cauliflower, cabbage, rapeseed)
  • Compositae (lettuce, endive, radicchio)
  • Umbelliferae (carrot)
  • Liliaceae (onion, leek, asparagus)

Cruciferae: roughly: 20-25 ml of pupae per m², once a week
Compositae: roughly: 15-20 ml of pupae per m², once a week
Umbelliferae: roughly: 20-25 ml of pupae per m², once a week
Liliaceae: roughly: 20-25 ml of pupae per m², once a week
Koppert's Pollination Checklist Natupol Fly indicates how the best pollination results can be achieved.

Environmental conditions
Optimal temperature range is 18-28 °C  for max. 3 days or 4-8 °C for max. 7 days.

Storage and handling

  • store and transport dark
  • at 3 °C the growth can be slowed down for maximum 2
  • after the storage period it takes 4-6 days for the flies to emerge (at 24 °C)

Adults Lucilia sericata size 7-11 mm, bluish green/emerald color, eyes bold, cheeks grey
Old adults: copper colored

Mode of action
The flies will search for nectar in the flower and thus come into contact with pollen. This pollen is not consumed or collected by the flies, and therefore remains available for pollination when the fly visits another flower to drink its nectar.
It is however important to check beforehand whether the flies can make physical contact with the pollen-bearing stamens and the stigmas while looking for nectar. Making physical contact is to a great extent dependent on the structure of the flower.


  • the plants need to be well irrigated, because the flies get their moisture from the nectar of the plants
  • sometimes honeybees are used beside flies to stimulate pollination

Always consult the side effect information or your consultant before applying chemicals.

The introduction rates of this product should be adjusted to the mode of action of the product and the results that can be expected in the crop where the product is applied. Your local Koppert consultant or recognized distributor will be able to advise you further.
Only use products that are permitted in your country/state and crop. Check local registration requirements.
Koppert Biological Systems can not be held liable for unauthorized use.

Products pollination

Bombus spp.
Bombus spp.
Bombus spp.
Bombus terrestris

Bumblebee stings!