Use of Gelgard M and an Evaporation Retardant to Facilitate Control of Larch Sawfly1 by a Nematode-Bacterium Complex2

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Abstract:

A manipulation of the microenvironment to increase the period of viability of the insect-parasitic nematode, DD-136 strain of Neoaplectana carpocapsae Weiser,1955 and its associated bacterium Achromobacter nematophilus Poinar and Thomas, sprayed onto larch foliage infested with larch sawfly, Pristiphora erichsonii (Hartig), was successful in laboratory tests. By adding to the aqueous suspension of nematodes, the water thickener Gelgard M® (0.13%), an evaporation retardant, Folicote 351® (0.2%), and a surfactant, Arlatone T® (0.1%), the average mortality of the larch sawfly larvae was increased from 24 to 90%.

Document Type: Research Article

Publication date: October 1, 1968

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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