Cross Resistance in a Diazinon-Resistant Strain of Musca domestica (L.)1
Laboratory selection of a Diazinon® (0,0-diethyl 0-(2-iso- propyl-4-methyl-6-pyrimidinyl phosphorathioate )-resistant field strain of house fly, Musca domestica( (L,), for nine generations on Diazinon-treated panels increased resistance not only to Diazinon but to a wide variety of insecticides. The levels of resistance to the various materials, as determined by topical application, were: Diazinon (38-fold), parathion (16), ronnel (18), Chlorthion® (O-(3-chloro-4-nitrophenyl0,0-dimethyl phosphorothioate) (23), malathion (5), Sevin® (1-naphthyl-N-methyl carbamate) (more than 37-fold), Isolan®(dimethyl 5-(I-isopropyl-3-methyl-pyrazolyl) carbamate) (14), Pyrolan® (dimethyl 5-(3-methyl-I-phenylpyrazolyl) carbamate) (10), chlordane (400), dieldrin (220), lindane (250), DDT (more than 6,400-fold),TDE (more than 1,300), methoxychlor (more than 3,600), Dilan® (1 part 1,1-his(p-chlorophenyl)-2-nitropropane and 2 parts (I,I-bis(p-chlorophenyl)-2-nitrobutane) (10) allethrins (5), pyrethrins (4), and Lethane 384® (2-(2-butoxyethoxy) ethyl thiocyanate) (2-fold). These increases in tolerance, except to Lethane, pyrethrins, allethrins, and malathion (which may be simply instances of vigor tolerance), are considered true resistances. The extent of cross-resistance indicates that most of the contemporary materials will be ineffective against Diazinon- resistant flies. It is suggested that phosphorodithioates, more stable carbamates, or more toxic thiocyanates may offer promise for control.
Tests on resistant flies collected from the field without further selection on Diazinon in the laboratory indicate that the pattern of resistance determined in this study is very similar to that which occurs under completely natural conditions of selection.
Document Type: Research Article
Publication date: August 1, 1959
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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