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Miride belonging allo'ordine of Rincoti is a predator typical whiteflies in the Mediterranean basin and used for biological protection mainly of tomato.
The adult measures 3-3, $ 1 mm depending on the sex (the male is smaller), is light green with the elytrates much clearer almost whitish. The eyes are reddish and the greenish antennae with the black base. The nymphs and nymphs are of smaller size and of a uniform greenish yellow color. The stages of predator are: nymphs, $ 1infe and adult.
It is a widespread entomophagus especially in the Mediterranean areas, it is bred for application and floods of biological control; the females lay their eggs inside the plant tissues of the host plants of the white fly, the newborn nymphs feed on the sap that comes out of the plant tissues and are already able to prey on the aleurodide (especially the eggs and its juvenile stages). The miride cycle evolves through three neanidal and two nymphal states (the latter are the most effective predators, they predominantly prey on white fly eggs but can also feed on aphids).
This Miride is in fact able to exploit also different sources of food such as aphids, mites, larvae of agromizidae and eggs of lepidoptera, allowing a good settlement on the crop even in the absence of whitefly.
The duration of the biological cycle of the insect depends very much on the environmental conditions, in particular the temperature, in fact the Miride can perform its cycle in about a month at temperatures of 25-30 ° C, or take more than three months if the temperature is keeps on 15 ° C. This entomopredatore is currently used in biological control interventions both because it does not damage the host plants and because of its environmental resistance. It is used to control mainly the white flies, eventually combined with Encarsia Formosa; adults are hunted in protected culture for 1-3 individuals per square meter, in 2-3 consecutive throws in cultural cycles for at least a few months (for canteen tomato in protected culture, for example, for at least 4-5 months ). This predator must preferably be introduced early, even if the presence of aleurodides is minimal, in order to anticipate as far as possible the development of the fly in the crop.
Macrolophus pygmaeus controlla:
Questo entomopredatore viene attualmente impiegato in interventi di lotta biologica sia perché non danneggia le piante ospiti, sia per la sua resistenza ambientale.
Si utilizza per controllare principalmente le mosche bianche, eventualmente abbinato all’Encarsia Formosa; vengono lanciati, in coltura protetta gli adulti in ragione di 1-3 individui per mq, in 2-3 lanci consecutivi nei cicli colturali per almeno alcuni mesi ( per il pomodoro da mensa in coltura protetta, ad esempio, almeno per 4-5 mesi).
Questo predatore deve essere, preferibilmente, introdotto precocemente, anche se la presenza di aleurodidi è minima, in modo da anticipare il più possibile lo sviluppo della mosca nella coltura.
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