Efficacy of seven fungicides and seven plant extracts were evaluated against two pathogenic species of fungi isolated from Senna alata L. in vitro. The isolated fungi were Colletotrichum gloeosporioides (Penz.) Sacc. and Pestalotiopsis guepinii (Desm.) Stay. Seven fungicides Acrobate MZ, Bavistin 50 WP, Indofil M-45, MC Sulphur 80 WP, Ridomil MZ Gold, Sulcox 50 WP and Tall 25 EC at 100, 200, 30...

The cell-free isobutene-forming system of Rhodotorula minuta IFO 1102 was prepared. This system consisted of isovaleric acid, NADPH, and a cell extract. The maximal activity obtained by using the described cell-free system was 17 nl/mg of protein per h. It appears that this cell-free isobutene-forming system operates in living cells of R. minuta.

The suppression of Meloidogyne incognita by marigolds differed among six marigold cultivars and five soil temperatures. Tagetes signata (syn. T. tenuifolia) cv. Tangerine Gem and the Tagetes hybrid Polynema allowed reproduction and root galling when grown at 30 degrees C, and should not be used for control of M. incognita at temperatures close to 30 degrees C. Tagetes patula cultivars Single Go...