Investigation And Identification Of The Whitefly Parasitoids

Parasitoids are the most important natural enemies for whiteflies. Especially, the more attentions are paid to the utilization of parasitoids in the biological control of whitefly pests, the more significant the systematical studies on the whitefly parasitoids are.All the specimens of the whitefly parasitoids in this study came from the laboratory of Entomology at College of Plant Protection in Fujian Agriculture and Forestry University and the collection conducted by author in Fuzhou areas from September 2000 to Novermber 2001. 53 species of whitefly parasitoids were identified, including 39 species of Encarsia Forster, 9 species of Eretmocerus Haldeman (Aphelinidae), 2 species of Amitus (Platygasteridae), 1 species of Comperiella Howard (Encyrtidae) (doubt), 1 species of Eulophidae. Among them, 5 species are newly recorded for China and 6 species is a record for the first time from Fujian Province, which are listed as follows:Aphelinidae (Hymenoptera)1. Genus Eretmocerus Haldeman(1) Eretmocerus corni Haldeman (newly recorded species for China)Host: Trialeurodespackardi (Morrill) on the strawberry whitefly, Trialeurodes on Euphorbia hirsuta, Trialeurodes on Lizard's Tail., Bemisia tabaci, Trialeurodes morrilli (Britton), whitefly, Trialeurodes morrillo (Britton) (jewel weed), Impat-ientd biflora, Aleyrodes hibisci Kolinsky, Aleyrodes corni Haldeman.Distribution: Fujian.Material examined: 13*, 1♂ , Fujian, Fuzhou, Chengmen, ix. 1997 (Qong-hua Zheng), ex Aleurotuberculatus takahashi David et Subramaniam on Jasminum sambace; 3♀, Fujian, Fuzhou, Shangjie, 28. viii. 2001 (Peng-ying Huang), ex Aleurotuberculatus takahashi David et Subramaniam on Jasminum sambace; 4♀, Fujian, Fuzhou, Shangjie, 16. ix. 1995 (Lian-bin Ye), ex Aleurotuberculatus takahashi David et Subramaniam on Jasminum sambace; 8♀, Fujian, Fuzhou, Jianxin, i. 1997 (Jian-wei Fu), ex Aleurotuberculatus takahashi David etSubramaniam on Jasminum sambace.(2) Eretmocerus gunturiensis Hayat (newly recorded species for China) Host: Aleyrodids on Murraya koenigii, Annona squamosa; Aleyrodes onMurraya koenigi.Distribution: Fujian, Anhui.Material examined: 7♀, Fujian, Fuzhou, Jinshan, 8. ix. 1995 (Lian-bin Ye, ex. Aleurocanthus spinifers on Osmanthusfragrans-, 7♀, Anhui, 8. viii. 1994 (Bao-yu Han), ex Aleurocanthus spinifers (Quaintance) on Camillia sinensis.(3) Eretmocerus longiscapus Hayat (newly recorded species for China) Host: Aleurolobus sp. near niloticus on Dalbergia sissoo, aleyrodids on D.sissoo, Terminalia arjuna.Distribution: Fujian.Material examined: 8♀, Fujian, Fuzhou, Jinshan, 25. ix. 1995 (Lian-bin Ye), ex Dialeurodes citri (Ashmead) on Sapium sebiferum-, 5♀, Fujian, Fuzhou, Jinshan, 25. ix. 1995 (Lian-bin Ye), ex Jasminum sambace.(4) Eretmocerus mundus Mercet (newly recorded species for China)Host: Bemisia tabaci on Gossypium spp., G.hirsutum, Nicotiana tabacum (brinjal, cotton, tobacco); [?] Neomaskellia bergii; Trialeurodes ricini on Phyll-anthus acidus-, Aleyrodidae including Aleyrodies spp. on grass, Annona squamosa, Lantana camara-, Bemisia tabaci on Abelmoschus, Gossypium (Malcaceae), Brassica (Cruciferae), Crcumis (Cucurbitaceae), Ipomoea (Convolvulaceae), Lantana (Verbenaceae), Sonchus (Asteraceae); Bemisia tabaci, Aleyrodies spp. on grass; Aleyrodes sp. on Solanum melongena.Distribution: Fujian.Material examined: 2♀, 1♂, Guangdong, Guangzhou, 20. xi. 2000 (Shun-xiang Ren), ex Bemisia tabaci on Salvia splendens Ker-Gawl; 6♀, Fujian, Fuzhou, Jinshan, 25. x. 2001 (Peng-ying Huang), ex Bemisia tabaci on Salvia splendens Ker-Gawl.(5). Eretmocerus rajasthanicus Hayat (newly recorded species for China)Host: Acaudaleyrodes rhachipora on Prosopisjuliflora, Acaudaleyrodes rha-chipora on Prosopisjuliflora.Distribution: Fujian.Material examined: 6♀, Fujian, Fuzhou, Jinshan, 6. ii. 2001 (Jian Huang), ex Bemisia tabaci on Ipomoea batacum.2. Genus Encarsia Forster(6). Encarsia bimaculata Heraty and Polaszek (newly recorde...