Search for methods of control or eUmination of the cotton root rot fungus (Phymatotrichum omnivorum (Shear) Dug.) in the alkahne soils of the Southwest has already continued for half a century. The literature involved has recently been reviewed by Rea (16)^ and by Streets (17). Nearly all of these discussions have been from the viewpoint of plant pathology or agronomy. Garrett (7) included this...

A study was conducted to determine the pathogens causing root rot, wilt and dieback disease of Cinnamomum cassia (Chinese cinnamon or cassia) in Vietnam, nurseries plantations Yen Bai, Quang Ninh, Thanh Hoa Nam provinces, streams Bai province. Pathogens were identified using morphology internal transcribed spacer (ITS) sequence analysis. The 204 isolates obtained included 125 Phytophthora 79 fr...

Root rot affecting holm oak is a cause of high ecological and economic losses in the Iberian Peninsula, highlighting relevance developing disease control methods. The aim this work was to assess effect biological treatment composed beneficial organisms (Trichoderma complex, T-complex) on seedlings infected by Phytophthora cinnamomi two contrasted ecotypes, one considered highly susceptible (HU)...

abstract brown rot is one of the fungal disease in the north of iran. symptoms on infected fruit in the initiation of infection appear as small dusky spots resembling peteca. then infected tissues were removed and cultured on the parph selective medium. based on morphological characters, growth rates, growth patterns and cardinal temperatures for growth, p. parasitica as a causal agent for mand...

A root rot disease is the most important factor limiting commercial production of vanilla [Vanilla fragrans (Salisb.) Ames] in Puerto Rico. According to a survey of growers in 1945 (1), the disease was responsible for 40% to 50%o death of vines. In 1927 the causal organism was identified as Fusarium batatatis var. vanilae, Tucker (5). The disease usually becomes more pronounced during the third...

Phellinus noxius causes root and lower stem rot of woody plants throughout the South Pacific region. Its hosts include rubber, mahogany, cacao, and many timber, fruit and landscape trees. Though endemic to the tropics, we found no reports describing brown root rot disease in native forests, exclusively. Incidence, distribution and host range of P. noxius were measured in primary and secondary r...

Phytophthora root and stem rot due to sojae is a major constraint of soybean production. This study evaluated the combined effect P. inoculation flooding on growth seedlings. The cultivar ‘Enrei’ was grown in greenhouse pots containing vermiculite containers field soil. plants were inoculated with two isolates subjected flooding. ratio dead live ranged from 0 0.32 across all treatments. Pathoge...

From 2018 to 2020, surveys of oomycetes associated with root and crown rot almond (Prunus dulcis) were conducted on diseased young trees in commercial orchards nurseries six provinces Spain. A total 104 oomycete isolates obtained from plant soil samples, which h identified by sequencing the internal transcribed spacer (ITS) region ribosomal DNA. Diverse species belonging genera Globisporangium,...