Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Contribution to the phytosanitary prospection of the Isle of Reunion.

Abstract

From observations made in 1950-52, the author gives notes on the pests and diseases of cultivated plants and forest trees in Reunion, together with a few records of stored-product pests there. Polyphagous insects observed included the locusts, Nomadacris septemfasciata (Serv.), two outbreak centres of which were found, and Locusta migratoria capito[Locusta migratoria migratorioides] (Sauss.), only solitary examples of which were seen, and the ant Monomorium pharaonis (L.), which, although not very injurious to plants, constitutes a nuisance in certain parts of the island. The principal pests of sugar-cane were Sesamia calamistis Hmps. (vuieria, auct.) [cf. R.A.E., A 41 68] (the eggs of which were parasitized by Trichogramma minutum Ril., Teirastichus atriclavus Waterst. and Enicospilus sp.), Proceras sacchariphagus[Chilo sacchariphagus] Bojer, Argyroploce schistaceana[Tetramoera schistaceana] (Sn.), Aphis maidis[Rhopalosiphum maidis] Fitch, Adoretus compressus (Weber), and the Coccids, Saccharicoccus (Trionymus) sacchari (Ckll.), Aclerda thysanolaenae Mamet, and Chionaspis (Aulacaspis) tegalensis Zehnt. [cf. 26 501]. Sesamia calamistis and Aphis maidis[Rhopalosiphum maidis] also attacked maize. Other pests of crops recorded include Tetranychus telarius (L.) on groundnuts, Cera-taphis lataniae Boisd. on vanilla, Xyleborus coffeae Wurth [cf. 26 706], Leucoptera (Cemiostoma) coffeella (Guér.), Gracilaria coffeifoliella Motsch., Thliptoceras octoguttale (Feld.), and Coccus (Eulecanium] viridis (Green), on coffee, Cratopus ditissimus Boh., Macrosiphum (Aulacorthum) solani (Kalt.) and Gnorimoschema (Phthorimaea) operculella (Zell.) on potato, Aphids including Myzus persicae (Sulz.) and Macrosiphum solanifolii[Macrosiphum euphorbiae] (Ashm.) (euphorbiae, auct.) on tobacco, Cosmopolites sordidus (Germ.) on banana, Aspidiotus destructor Sign, on coconut, Papilio demodocua Esp., Lepidosaphes beckii (Newm.) (citricola (Pack.)), L. gloveri (Pack.), Coccus hesperidum L., Chrysomphalns ficus Ashm. (aonidum, auct.), and C. dictyospermi (Morg.) on Citrus, Vinsonia stellifera (Westw.) (pulchella Sign.), Batocera rubus (L.) and Cryptorrhynchus mangiferae (F.) on mango, Ceratitis capitata (Wied.) on peach, the woolly aphis [Eriosoma lanigerum (Hsm.)] and Pulvinaria sp. on apple, Atherigona excisa[Atherigona orientalis] (Thoms.) and C. capitata on tomato and Melanagromyza phaseoli[Ophiomyia phaseoli] (Coq.) and Tetranychus telanus on beans. Casuarina equisetifolia, the most widespread forest tree on the island, was attacked by Celosterna (Coelosterna) scabrator (F.) [cf. 36 317], and Aleurotrachelus (Aleurodes) trachoides (Back.) sometimes caused serious injury to the young trees in nurseries. The stored-product pests included Bruchus (Acanthoscelides] obtectus Say and B. (Callosobruchus) ornatus Boh. on beans, Oryzaephilus snrinamensis (L.) and Calandra (Sitophilus) oryzae (L.) on rice, Trogoderma granarium Everts on coriander seeds, and Tyroglyphus sp. on vanilla capsules [cf. 31 217].