.

Determination of beneficial insect population

  • Manual sampling (beating samples of trees, visual observation of shoots; adults and larvae of ladybugs and lacewings, larvae of hoverflies, spiders)
  • Brushing of leaves (predatory mites)
  • Observation of shoots during aphid infestation (adult and larvae of ladybugs and lacewings, larvae of hoverflies)

Ladybugs (Coccinellidae )
Siebenpunkt-Marienkäfer_Coccinella septempunctata_Pfeifer, JKI DossenheimLarven des asiatischen Marienkäfers_Harmonia axyridis_Pfeifer, JKI Dossenheim
Adult seven-spotted ladybug (Coccinella septem-punctata) (© B. Pfeifer, JKI Dossenheim)The larvae of the Asian ladybug (Harmonia axyridis)
(© B. Pfeifer, JKI Dossenheim)

Lacewings (Chrysoperla carnea )
Florfliegenei an Kirschblatt_B. Boehnke_JKI DossenheimFlorfliegenlarve an Napfschildlaus an Heidelbeere_C. Augel_LTZ Augustenberg
Egg of lacewing (Chrysoperla carnea )
(© B. Boehnke, JKI Dossenheim)
Lacewing larva on scale insect on blueberry
(© C. Augel, LTZ Augustenberg)
Adulte Florfliege_copyright J. Just, JKI DossenheimLarve der Florfliege_copyright Fotoarchiv, JKI Dossenheim
Adult lacewing (Chrysoperla carnea)
(© J. Just, JKI Dossenheim)
Larvae of lacewing (Chrysoperla carnea)
(© Photo archive, JKI Dossenheim)

Hoverflies (Syrphidae )
Adulte Schwebfliege_Episyrphus balteatus_Fotoarchiv, JKI DossenheimLarve der Schwebfliege_copyright Fotoarchiv, JKI Dossenheim
Adult hoverfly (Episyrphus balteatus) on blue lower
(© Photo archive, JKI Dossenheim)
Larva of hoverfly (Episyrphus balteatus) on aphids
(© Photo archive, JKI Dossenheim)

Spiders (e.g.)
Braune Kugelspinne_Theridion impressum_Fotoarchiv, JKI DossenheimGelbgrüne Spinne auf Kirschblatt_C. Augel_LTZ Augustenberg
Theridiid spider Theridion impressum
(© Photo archive, JKI Dossenheim)
Yellow green spider on cherry leaf
(© C. Augel, LTZ Augustenberg)

Predatory mites
Obstbaumspinnmilbe u. Raubmilbe_copyright J. Just, JKI DossenheimEinsatz Raubmilben_Himbeeren_S.Weißbrodt_BLE
The pest species European red spider mite (1; Panonychus ulmi ) and the predatory mite (2; Typhlodromus pyri ) (© J. Just, JKI Dossenheim)Use of predatory mites in raspberries
(S. Weißbrodt, BLE)

Further beneficial insects
Schlupfwespe an Brombeere_C. Augel_LTZ Augustenberg
Ichneumon fly on blackberry
(© C. Augel, LTZ Augustenberg) 

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