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3107715 
Journal Article 
Natural enemies of the bandedwing whitefly in Louisiana 
Watve, CM; Clower, DF 
1976 
Yes 
Environmental Entomology
ISSN: 0046-225X 
HEEP/77/03675 
5 
6 
1075-1078 
HEEP COPYRIGHT: BIOL ABS. Species of the genera Eretmocerus and Encarsia (Order: Hymenoptera, Family: Eulophidae) are parasites of the bandedwing whitefly, Trialeurodes abutilonea (Haldeman) in Louisiana (USA) cotton and soybean agroecosystems. In the order of their prevalence, they are Eretmocerus haldemani Howard, Encarsia sp. (undescribed), E. quaintancei Howard and E. pergandiella Howard. Eretmocerus haldemani is the predominant species both in cotton fields and in other host crop fields within cotton producing areas, accounting for. Pupal parasitism was lower in cotton than other crop fields. Insect predators of the whitefly in Louisiana are Coleomegilla maculata lengi Timberlake, Coccinella novemnotata Herbst, Hippodamia convergens Guerin-Menaville, Olla abdominalis (Say), Delphastis pusillus LeConte; Geocoris punctipes (Say), Orius insidiosus (Say); species of Chrysopidae and Hemerobiidae; and Nabis spp. Mixtures of broad spectrum insecticides such as methyl parathion, toxaphene and DDT used in cotton fields for the control of boll weevil and Heliothis spp. were extremely harmful to both parasites and predators of T. abutilonea.