1958
DOI: 10.1111/j.1570-7458.1958.tb00017.x
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SOME INSECTARY EXPERIMENTS WITH PREDACIOUS MITES TO DETERMINE THEIR EFFECT ON THE DEVELOPMENT OF METATETRANYCHUS ULMI (KOCH) POPULATIONS

Abstract: As field spraying experiments give results which are difficult to resolve in terms of individual predator species, a series of experiments has been carried out in an insectary to find out what effect predacious mites of various species have upon populations of Meta‐tetranychus ulmi (Koch), in the absence of other prey. Known numbers of each mite species were placed on seedling plants, and the development of the resulting populations followed. In one experiment, where initial numbers of 5, 25 or 50 M. ulmi fema… Show more

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Cited by 49 publications
(20 citation statements)
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“…23) and to a different maximum of the mean gut content reached for each single species of prey. Differences in preference are often reported in studies on mite predation of alternative prey species or stages (Burnett, 1970;Chant, 1963;Collyer, 1958;Dosse, 1956;Elbadry et al, 1968;Flaherty & Huffaker, 1970), so switching may be common in mites. This emphasizes Chant's remark (Chant, 1961a) that in studies of mite populations the determination of predator/prey ratios has little value, if nothing is known about the composition of the prey population.…”
Section: Rutm=utm/ute=bioegg/biomal-denegg/denmalmentioning
confidence: 99%
“…23) and to a different maximum of the mean gut content reached for each single species of prey. Differences in preference are often reported in studies on mite predation of alternative prey species or stages (Burnett, 1970;Chant, 1963;Collyer, 1958;Dosse, 1956;Elbadry et al, 1968;Flaherty & Huffaker, 1970), so switching may be common in mites. This emphasizes Chant's remark (Chant, 1961a) that in studies of mite populations the determination of predator/prey ratios has little value, if nothing is known about the composition of the prey population.…”
Section: Rutm=utm/ute=bioegg/biomal-denegg/denmalmentioning
confidence: 99%
“…The effectiveness of two phytoseiid species, Typhlodromus pyri Scheuten and Amblyseius andersoni (Chant), in keeping phytophagous mites under economic threshold levels is widely recognized (Collyer 1958;McMurtry et al 1970;Ivancich Gambaro 1975;Baudry et al 1999). The importance of these predatory mite species in European apple orchards and elsewhere has been favoured by the spread of strains resistant to insecticides, e.g.…”
Section: Introductionmentioning
confidence: 99%
“…A.finlandicus is considered to be an important predator of European red mite (Panonychus ulmi) (Koch) (Acari: Tetranychidae) and rust mites (Acari: Eriophyidae) on apple (Malus Xdomestica Borkh.) (Collyer, 1958(Collyer, , 1964van de Vrie, 1975;Genini etal., 1983;Sechser et al, 1984;Schausberger, 1991). This species is a polyphagous facultative predator that can also feed on pollen, honeydew, fungal spores (KropczynskaLinkiewicz, 1971), thrips larvae (Schausberger, 1990) and tyroglyphid and tarsonemid mites (Karg et al, 1987).…”
Section: Introductionmentioning
confidence: 99%