Fine Structure of the Integument of the Two-Spotted Spider Mite, Tetranychus telarius (Acarina: Tetranychidae)
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Abstract:
Electron micrographs of transverse and saggital sections of the opisthosoma of the two-spotted spider mite, Tetranychus telarius (L.), showed a layered cuticle and a hypodermal layer with a basement membrane. The entire cuticle measured 0.70 μ–0.91 μ thick, the epicuticle being 0.01 μ, exocuticle 0.09 μ–0.11 μ, and endocuticle 0.16 μ–0.78 μ. Cuticular extensions, lobed at the apices, were 1.37 μ–1.74 μ high and about 0.09 μ thick at the narrowest point. The hypodermal layer was about 1.19 μ–1.71 μ and delineated by the basement membrane.Keywords:
Tetranychus
Integument
Several acaricides were evaluated against the adult two-spotted spider mite, Tetranychus telarius (L.), in laboratory studies. Materials were applied by dip application, and the percent control was noted 2½ days after treatment. Ethion and Delnav® (2,3-p-dioxanedithiol S, S-bis(O, O-diethyl phosphorodithioate)) were the most effective compounds of the 17 materials tested.
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A new species of spider mite, Tetranychus algarrobus n. sp., is described and illustrated from Peru. It was found damaging the foliage of the native forest tree Neltuma piurensis (Fabaceae) in Piura, northwestern Peru.
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Journal Article A Recessive Factor for Organophosphate-Resistance in Populations of the Two-Spotted Spider Mite, Tetranychus telarius Get access Volker Dittrich Volker Dittrich Department of Entomology, Cornell University, Ithaca, New York Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 56, Issue 2, 1 April 1963, Pages 182–184, https://doi.org/10.1093/jee/56.2.182 Published: 01 April 1963 Article history Accepted: 30 November 1962 Published: 01 April 1963
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Journal Article Physiological Responses to Spider Mite Infestation on Strawberries Get access F. V. Sances, F. V. Sances 2 Dept. of Entomology, Univ. of Calif., Riverside 92521 Search for other works by this author on: Oxford Academic PubMed Google Scholar J. A. Wyman, J. A. Wyman 2 Dept. of Entomology, Univ. of Calif., Riverside 92521 Search for other works by this author on: Oxford Academic PubMed Google Scholar I. P. Ting I. P. Ting 3 Dept. of Botany and Plant Sciences, Univ. of Calif., Riverside Search for other works by this author on: Oxford Academic PubMed Google Scholar Environmental Entomology, Volume 8, Issue 4, 1 August 1979, Pages 711–714, https://doi.org/10.1093/ee/8.4.711 Published: 01 August 1979 Article history Received: 05 February 1979 Published: 01 August 1979
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Abstract The activities against the eggs and young mites of the glasshouse red spider ( Tetranychus telarius L.) have been determined for a series of benzyl phenyl sulphides containing only halogen nuclear substituents. The results, together with the results from some of the corresponding sulphoxides and sulphones, are tabulated and discussed.
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Abstract A number of benzyl phenyl sulphides, containing only non‐halogen nuclear substituents, and some of the corresponding sulphones, are characterized. The activities against the eggs and young mites of the glasshouse red spider ( Tetranychus telarius L.) are tabulated and discussed.
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