Delphastus catalinae andColeomegilla maculata lengi (Coleoptera: Coccinellidae) as biological control agents of the greenhouse whitefly,Trialeurodes vaporariorum (Homoptera: Aleyrodidae)

2004 ◽  
Vol 60 (11) ◽  
pp. 1073-1078 ◽  
Author(s):  
�ric Lucas ◽  
Claude Labrecque ◽  
Daniel Coderre
2001 ◽  
Vol 91 (5) ◽  
pp. 369-387 ◽  
Author(s):  
S. Schmidt ◽  
I.D. Naumann ◽  
P.J. De Barro

AbstractAfter the recent introduction of the pest whitefly Bemisia tabaci (Gennadius) biotype B into Australia, research was undertaken to study the parasitoids of the long established native B. tabaci and Trialeurodes vaporariorum (Westwood). The genus Encarsia species which are important biological control agents of whiteflies and hard scales. The taxonomy of the Encarsia species attacking B. tabaci and T. vaporariorum in Australia and the Pacific Islands is revised. DNA sequencing of the 28S D2 ribosomal DNA was used characterize species. Sixteen species are recognized, with 12 occurring in Australia, eight in the Pacific region, and four in both regions. All except one species (E. formosa Gahan) are new records for Australia. Four species are described as new from Australia: E. accenta & Naumann sp. n., E. adusta Schmidt & Naumann sp. n., E. oakeyensis Schmidt & Naumann sp. n., and E. ustulata Schmidt & Naumann sp. n. Diagnostic descriptions are given for all species and each species is illustrated. pictorial key is provided to allow the identification of species by non-specialists.


1992 ◽  
Vol 2 (4) ◽  
pp. 457-460 ◽  
Author(s):  
R.W. McMahon ◽  
R.K. Lindquist ◽  
M.L. Casey ◽  
A.C. Witt ◽  
S.H. Kinnamon

A demonstration study was conducted to compare the effectiveness of biological and chemical control treatments on the greenhouse whitefly (GHWF) (Trialeurodes vaporariorum, Westwood) using poinsettia (Euphorbia pulcherrima Wild.) stock plants. Two identical greenhouse compartments, each containing 84 stock plants, were used. In the biological control compartment, three biweekly releases of Encarsia formosa (EF) were made, while in the chemical control compartment eight weekly applications of resmethrin or acephate aerosol treatments were made. Results showed that overall greenhouse whitefly populations in the chemical control compartment were slightly lower than in the biological control compartment. Cuttings taken from stock plants in the biological control compartment at the end of the experiment were commercially acceptable with regard to the presence of GHWF adults. Chemical names used: O,S-dimethyl acetylphosphoramidothioate (acephate), [5-(phenylmethyl)-3-furanyl] methyl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropane-carboxylate (resmethrin).


2008 ◽  
Vol 61 ◽  
pp. 386-386
Author(s):  
P.J. Workman ◽  
I.A.W. Scott ◽  
G.M. Drayton

In the summer of 200607 unsprayed vegetable crops in the Auckland region were surveyed to locate and identify natural enemies of whitefly thrips and psyllids that could be used as biological control agents for pests of greenhouse crops A natural enemy that was specifically sought was a yellow parasitoid of greenhouse whitefly Trialeurodes vaporariorum that had previously been observed in the Auckland region in greenhouse crops (T Marais pers comm) This parasitoid was identified in 1997 by Dr J Berry (Landcare Research) as Eretmocerus sp The 200607 survey located three populations of a yellow parasitoid of greenhouse whitefly on runner beans in a home garden at Waimauku in an organic garden in Silverdale and on greenhouse tomatoes in Mangere Sequences of diagnostic COII ITS2 and D3 gene regions were obtained from the Waimauku samples and subsequent interrogation of sequence databases using BLAST identified the parasitoid as Eretmocerus warrae (Naumann and Schmit 2000) (Hymenoptera Aphelinidae) Eretmocerus warrae was found across the southern half of Australia in surveys in 199597 and is considered endemic to Australia but has only been found from the exotic greenhouse whitefly In 2008 specimens of Eretmocerus collected in 1997 and 2006 were examined by CSIRO and were considered to be morphologically identical It was concluded that both samples of the parasitoids were Eretmocerus eremicus which is now considered to be synonymous with E warrae


EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]


Sign in / Sign up

Export Citation Format

Share Document