Allowed in Organic farming
Orius laevigatus

Orius laevigatus

Antocoride predatore per il controllo dei tripidi

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Antocoride, belonging to the order of the Rincoti, entomopredatore employed for the control of the thrips in particular. The main areas of use are horticultural, both in protected cultivation and in open fields, on crops such as pepper, strawberry, aubergine, cucumber and floriculture, in particular gerbera.

Controlled adversities:

  • Thrips - Frankliniella occidentalis (primary target)
  • Lepidoptera
  • Mites
  • psyllids
  • Aphids
  • Small insects

It is a small insect (about 3mm in length) with a color that fades from yellow to dark brown: the emielitre are longer than the abdomen and have a shaded brown to blackish color.

The buccal apparatus is pungent sucking, characteristic that makes it an extremely voracious predator; this antocoride feeds itself by emptying the prey, first it stings it through the stilettos, then it introduces the paralytic saliva with a pre-digestive function. Nutrition occurs by sucking up pre-digested tissues.

Predator stages (neanid, nymph and adult) use mainly thrips as a food source, but they can feed on pollen and other phytophagous species, including mites, aphids or other small insects. For the control of thrips in protected cultivation, Orius laevigatus is used by making one or more pitches of 1-2 predators per square meter.

The introduction must be performed starting from the first observations of thrips or even before, or in the presence of flowers, in fact this predator is usually stationed on the flowers especially if pollen-rich which is nourished even in the absence of prey, so to anticipate as much as possible the settlement of the predator in the crop.

Orius laevigatus controlla:

  • Tripidi - Frankliniella occidentalis (bersaglio primario)
  • Lepidotteri
  • Acari
  • Psille
  • Afidi
  • Piccoli insetti

Gli stadi da predatore (neanide, ninfa e adulto) utilizzano come fonte di cibo principalmente tripidi ma, possono nutrirsi alternativamente di polline ed altri fitofagi, tra cui acari, afidi od altri piccoli insetti. Per il controllo dei tripidi in coltura protetta Orius laevigatus viene impiegato effettuando uno o più lanci di 1-2 predatori per mq.

L’introduzione deve essere eseguita a partire dalle prime osservazioni di tripidi od anche prima, ovvero in presenza dei fiori, infatti  questo predatore è solito stazionare sui fiori specialmente se ricchi di polline del quale si nutre anche in assenza di prede, in modo da anticipare il più possibile l'insediamento del predatore nella coltura.

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