Water-Absorbent Starch Polymer: Survival Aid to Nematodes for Control of Diaprepes Abbreviatus (Coleoptera: Curculionidae) in Citrus
Abstract
A water absorbent starch polymer apparently increased survival of the entomogenous nematode Steinernema carpocapsae (Weiser) applied for control of a root weevil, Diaprepes abbreviatus (L.). on roots of Citrus sp. Increased mortality of wax moth, Galleria mellonella (L.), larvae exposed to soil from the starch polymer/nematode treated area occurred compared with water/nematode treatment alone. Mortality of D. abbreviatus larvae buried in the soil on the side of the tree receiving the starch/nematode treatment was 52% compared with 42% for the water/nematode and 0% for the control treatments. Enhanced infection of G. mellonella larvae by entomogenous nematodes was apparent for more than 2 months under field conditions.Downloads
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