1. Biological pest control in orchard
Green lacewing larvae
Biological pest control in orchard
Ladybug

2. E.g: Trichogramma wasps parasitise EGGS
do not directly control adult pests already active in the field

3. Proper timing of releases
must coincide with a susceptible stage of the host
early enough in the cropping season to assure success
Trichogramma parasites
Parasited caterpillar

4. Correct rate of release for natural enemies
usually based on the amount of planted area
Whitefly parasites

5. Environmental provisioning
Environmental needs:
nectar sources
alternate prey
water
should be available for adult beneficial organisms!
Otherwise beneficial insects may leave or die.
Flower fly