Stem and root rot ofTelosma cordatacaused byPhytophthora palmivorain Vietnam – a newly recognised disease

First report of Fusarium wilt of watermelon in Vietnam

“…The isolate of F. oxysporum from the seedling from Nursery 2 and four isolates of F. oxysporum from crop plants caused wilting and death of plants in a preliminary test of pathogenicity using a stem inoculation technique . The isolate from the wilted seedling was also tested for pathogenicity using an inoculated soil technique following the methods in Dau et al (2008). The inoculum was prepared by growing the isolate in a millet/rice hull medium .…”

First report of Fusarium oxysporum f.sp. niveum in the Lao PDR

“…A more rigorous test was then performed using a soil inoculation method (Dau et al 2008). A medium consisting of rice hulls and millet seed (1:2 by volume) described by Burgess et al (2008) was sterilized twice in four 500 ml screw-cap bottles.…”

Phytophthora stem rot of purple passionfruit in Vietnam

“…The nature of the symptoms and the observations that the disease developed in the wet season, indicated that a Phytophthora species was the putative pathogen. The isolation methods were adapted from Dau et al (2008). Sections of the diseased stems each including a junction with symptomless tissue were removed, washed in tap water, then washed in sterile water, surface sterilized in 70 % ethyl alcohol for 5 s, rinsed again in sterile water and damp-dried on sterile paper tissue.…”

“…The pathogenicity of MUCC707 to P. edulis was tested at the Plant Protection Sub-Department in Vinh City, Nghe An province using a stem inoculation technique similar to that described by Dau et al (2008) for testing the pathogenicity of P. palmivora to Telosma cordata. Well-rooted young vines of P. edulis were established in natural sandy soil in small pots from cuttings from symptomless mother stock.…”