Vermicomposts of Different Origins Protect Tomato Plants Against the Sweetpotato Whitefly.

The effect of four vermicomposts, obtained from different organic sources (pistachio waste [PWV], date waste [DWV], cattle manure waste [CMV], and food waste [FWV]), as well as two chemical fertilizers (complete fertilizer [CF] and NPK fertilizer [NPK]) on some life history traits of the sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) was investigated in a series of choice and not choice experiments. In a choice experiment, adult whiteflies exhibited significantly lower preference for settling and oviposition on plants treated with vermicomposts than those in control, CF, and NPK groups (P < 0.01), with better results were observed in PWV group.