Effect of Extracts from Pt on CMV, PVYN and Insect Vector

doi:10.11924/j.issn.1000-6850.0505341

Chin Agric Sci Bull ›› 2005, Vol. 21 ›› Issue (5) : 341-341. DOI: 10.11924/j.issn.1000-6850.0505341

Shen Jianguo, Xie Liyan, Zhang Zhengkun, Xie Lianhui, Lin Qiying

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Abstract

The extracts of Pt were evaluated for biological activity against CMV (Cucumber mosaic virus), PVYN (Potato virus YN) and Myzus pesicae (Suzer). The results were as follows: VT1 had high antiviral effect on CMV and PVYN. The inhibition rate of VT1(1mg/ml) for CMV and PVYN was 91.6% and 96.2% respectively. VT1 showed strong contact action against Myzus pesicae (Suzer) and the LC50 value of 24h and 48h was 1.953 mg/ml, 0.8125mg/ml respectively. The CHCl3 fraction was found as the most active part for contact action against Myzus pesicae (Suzer). VT1 also exhibited repellency and systemic activity, but no obvious fumigation activity against Myzus pesicae (Suzer).

Key words

Pt;Extract;Cucumber mosaic virus (CMV);Potato virus YN (PVYN);Myzus pesicae (Suzer)

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Shen Jianguo, Xie Liyan, Zhang Zhengkun, Xie Lianhui, Lin Qiying. Effect of Extracts from Pt on CMV, PVYN and Insect Vector[J]. Chinese Agricultural Science Bulletin. 2005, 21(5): 341-341 https://doi.org/10.11924/j.issn.1000-6850.0505341

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