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Feltiella acarisuga (formerly known as Therodiplosis persicae), is a Cecidomyid midge, the larvae of which feed on spidermite pests (Tetranychus urticae and T. cinnibarinus). The product is supplied as cocoons on pieces of leaf, packed into wood wool in a 1 litre tub. A minimum of 250 adults should emerge from each tub.

Feltiline a

Predatory midge for spider mite control

  • Curative treatment for established spider mites
  • Actively searches pest in leaf canopy
  • Forms cocoons on leaves aiding monitoring
  • Adult Feltiella searches out spidermite colonies and lays eggs.
  • Larvae hatch and feed on pest

Adult midges are smaller and paler than sciarid flies with curled antennae. They are short lived and not predatory, feeding mainly on honeydew from aphids. The larvae are translucent to yellowish and feed only on spidermites. They can only become established in the presence of the prey.

Instructions for use

Place the tub in the shade on the ground close to spidermite colonies, but away from irrigation systems. Make a hole in the filter paper lid. Use 1 tub per localised outbreak. Repeat 4 times at weekly intervals. Use 1 tub per 1000 sqm for more generalised attacks. Continue release until cocoons appear under leaves (22-25 days at 22°C). Diapauses in short daylengths.
Will not disperse if adequate food is present: ensure proper distribution in the greenhouse. Do not use in presence of generalist predators like Macrolophus. Avoid regular use of sulphur which can affect Feltiella.

Storage and transport

Keep out of direct sunlight
Transport and store in dark at 10-15°C
Use within 18 hours of receipt

Further information

Syngenta Bioline Ltd
Telstar Nursery, Holland Road
Little Clacton, Essex CO16 9QG, England
Tel +44 (0) 1255 863 200
Fax +44 (0) 1255 863 206

sales@syngentabioline.com