Effectiveness of Eretmocerus sp.and Aschersonia aleyrodis in controlling Bemsia tabaci populations

Abstract

Abstract: The effectiveness of Eretmocerus sp. and Aschersonia aleyrodis in controlling Bemisia tabaci populations on cucumber were determined in separated and combined greenhouse experiments. The results showed that after spraying A.aleyrodis(5×10⁶ spores per ml,twice per generation) and releasing Eretmocerus sp. (3 female per plant,twice per generation),95.74% and 57.58% of whitefly populations were controlled,respectively. However,when the two natural enemies were used together with the same rate mentioned above (A. aleyrodis spraying twice followed by releasing Eretmocerus sp. once or twice in one generation),97.02%～97.91 % of whitefly populations were controlled. Moreover,the increasing index of whitefly population (I) subjected to both natural enemies together was below 1,indicating the substantial reduction in whitefly population. The combined treatments provided a better control effect of whitefly than separated ones,and there was no contradicted effect between both natural enemies.

CLC Number:

Q968.1

QIU Baoli, REN Shunxiang, XIAO Yan, Nasser Said Mandour . Effectiveness of Eretmocerus sp.and Aschersonia aleyrodis in controlling Bemsia tabaci populations[J]. Chinese Journal of Applied Ecology, 2003, (12): 2251-2254.

References

[1] Brown JK. 1994. Current status of Bemisia tabaci as a plant pest and virus vector in agro-ecosystems worldwide. FAO Plant Pro Bull, 42(2): 1～32
[2] Cahill M. 1996. Baseline determination and detection of resistance to imidacloprid in Bemisia tabaci . Bull Entomol Res, 86(4): 343～349
[3] Chen L-G(陈连根).1997.The damage and morphological variations of Bemisiatabaci(Genn.)on ornamental plants.J Shanghai AgricColl(上海农学院学报),15(3):186～189(inChinese)
[4] De Barro PJ, Driver F. 1997. Use of RAPD PCR to distinguish the B biotype from other biotypes of Bemisia tabaci (Gennadius)(Hemiptera: Aleyrodidee). Austr J Entomol, 36:149～152
[5] Dittrich V, Ernst GH, Ruesch O, et al. 1990. Resistance mechanisms in sweetpotato whitefly (Homoptera: Aleyrodidae) populations from Sudan, Turkey, Guatemala, and Nicaragua. J Econ Entomol, 83(5): 1665～1670
[6] Fransen J J, van Lenteren JC. 1993. Host selection and survival of the parasitoid Encarsia formosa on greenhouse whitefly, Trialeurodes vaporariorum, in the presence of hosts infected with fungus Aschersonia aleyrodis. Entomol Exp Appl, 69:239～249
[7] Fransen JJ, van Lenteren JC. 1994. Survival of the parasitoid Encarsia formosa after treatment of the parasitized greenhouse whitefly larva with fungal spores of Aschersonia aleyrodis. Entomol Exp Appl, 71:235～243
[8] Ishaaya I, Mendelson Z, Melamed-Madjar V. 1988. Effect of buprofezin on embryogenesis and progeny formation of sweetpotato whitefly(Homoptera: Aleyrodidae). J Econ Entomol, 81 (3): 781～784
[9] Luo C(罗展),Zhang Z-L(张芝利).2000.Study progress on Bemisiatabaci(Gennadius).Beijing Agic Sci(北京农业科学),(suppl.):4～13(in Chinese)
[10] Pang X-F(庞雄飞),Liang G-W(梁广文).1995.Control of Pest Population Systems. Guangzhou: Guangdong Science and Technology Press. 15～31(in Chinese)
[11] Prabhaker N, Coudriet DL, Meyerdirk DE. 1985. Insecticide resistance in the sweetpotato whitefly, Bemisia tabaci (Homoptera: Aleyrodidae). J Econ Entomol, 78(4): 748～752
[12] Prabhaker N, Coudriet DL, Toscano NC. 1988. Effect of synergists on organ- phosphate and permethrin resistance in sweetpotato whitefly(Homoptera: Aleyrodidse). J Econ Entomol, 81(1): 34～39
[13] Prabhaker N, Toscano NC, Coudriet DL. 1989. Susceptibility of the immature and adult stages of the sweetpotato whitefly(Homoptera:Aleyrodidae) to selected insecticides. J Econ Entomol, 82(4): 983～988
[14] Qu B-L(邱宝利),Ren S-X(任顺祥),Sun T-X(孙同兴),et al.2001.Investigation of Host plants of Bemisia tabaci(Homoptera:Aleyrodidae)in Guangzhou area.J South China Agric Univ(华南农业大学学报),22(4):43～47(in Chinese)
[15] Ren S-X(任顺样),Wang Z-Z(王振中),Qu B-L(邱宝利),et al.2001. The pest status of Bemisia tabaci in China and non-chemical control strategies. Entomol Sin, 18(3) :279～288
[16] Secker AE, Bedford ID, Markham PG, et al. 1998. Squash, a reliable field indicator for the presence of B biotype of tobacco whitefly, Bemisia tabaci. In: British Crop Protection Council, ed.Brighton Crop Protection Conference: Pest and Diseases. London:Famham Press. 837～842
[17] SunSY(孙双艳),HuD-X(胡敦孝),GaoX-W(高希武).2001.Development on insecticide application of Bemisia tabaci biotype B. In: China Plant Protection Council, ed. Status of Economic Crops Pest Control. Beijing: China Agricultural Press. 10～15 (in Chinese)
[18] Zhao J-Z(赵建周). 1998. Study progress of pest resistance to imidacloprid.Plant Prot(植物保护),24(6):40～41(in Chinese)
[19] Zhao L(赵莉),Zhang R(张荣),XiaoY(肖艳),et al.2000. The serious pest, Bemisia tabaci (Genn.), was found in Xinjiang.Xinjiang Agric Sci(新疆农业科学),17(4):58～160(in Chinese)
[20] Zhou Y(周尧).1949.The species of whiteflyin China. J Entomol Sin(中国昆虫学杂志),3(4):1～18(in Chinese)