Greenhouse Whitefly and Thrips Management Model Using Natural Enemies in Semi-forcing Culture of Tomato
2017
Jeong, T.S., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Hwang, M.R., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Hwang, S.J., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Lee, J.H., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Lee, A.S., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Won, H.S., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Hong, D.K., Gangwon-do Agricultural Research and Extension Services, Chuncheon, Republic of Korea | Cho, J.R., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Ham, E.H., Institute for Bioresources, Osangkinsect Co., Ltd., Guri, Republic of Korea
To investigate the control effect of insect pests by natural enemies, sticky traps were used in commercial tomato greenhouses in Chun-cheon and the experiment fields of Gangwon-do Agricultural Research and Extension Services, Republic of Korea using semi-forcing culture (February to June). We selected low toxicity pesticides, environment-friendly agricultural materials (EFAM), and natural enemies of the study species, combinations of which have been previously used in farms to control insect pests. In this study, Trialeurodes vaporariorum and thrips, which are major agricultural insect pests, were studied in experimental greenhouses. The adult T. vaporariorum population was observed in mid-April and the population of thrips showed occurrences in early April. Regarding seasonal fluctuation, T. vaporariorum peaked in mid-May and thrips peaked after June. one insecticide, spiromesifen suspension concentrate (SC); one fungicide, cyazofamid SC; and two EFAMs containing neem tree extract were shown to be slightly toxic to Encarsia formosa and Orius laevigatus. The results of this study could be used to develop management models using natural enemies of control the insect pests; T. vaporariorum and thrips in semi-forcing culture of tomato.
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