00000nam 2200000zi 4500 9.935581 CaOODSP 20240318154331 m o d f cr mn||||||||| 240318e197212 onca ob f000 0 eng d CaOODSP eng rda CaOODSP Fo64-37/48-1972E-PDF Prasad, R. (Renee) author. Evaluation of fungicides for control of tree diseases. I, Preliminary screening against the Dutch elm disease Ceratocystis ulmi (Buism) Moreau under laboratory conditions / by R. Prasad and D. Travnick. Ottawa, Ontario : Chemical Control Research Institute, December 1972. 1 online resource (18 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Information report, 0704-7711 ; CC-X-48 ISSN of series supplied from ISSN Portal. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 16-17). "Elm (Ulmus americana L.) is one of the popular shade trees in the urban and suburban localities and its protection against the Dutch elm disease (DED) caused by Ceratocystis ulmi is urgently needed. Even though considerable effort has been made during the past 40 years to save the elm from DED, no practical and effective cure is available to date. However, with the discovery of a new fungicide (benomyl) by the Dupont Co., U.S.A., (Delp and Klopping 1968) it seems that DED can now be contained and combatted (Smalley 1972, Kondo 1972, Prasad 1972). Although benomyl shows great promise as a chemotherapeutant against the DED (Stipes 1969, Biehn and Diamond 1971) its lack of solubility in aqueous formulations has been one of the serious drawbacks. Also if strains of DED become resistant to benomyl or if benomyl inhibits turnover of DNA (Clemons & Sisler 1971) then there is a need to screen other compounds which possess greater solubility, compatibility with spray formulations and potency against the tree diseases. With this objective in mind, a screening program was undertaken and the present report summarizes the relative fungicidal activities of ten compounds"--Introduction, pages 1-2. Fungicides Testing. Benomyl Testing. Ceratocystis ulmi Control. Dutch elm disease Control. Fongicides Essais. Bénomyl Essais. Ophiostoma ulmi Lutte contre. Maladie hollandaise de l'orme Lutte contre. Chemical Control Research Institute (Canada), issuing body. Report (Chemical Control Research Institute (Canada)) CC-X-48. (CaOODSP)9.931023 PDF 2.09 MB https://publications.gc.ca/collections/collection_2024/eccc/fo64/Fo64-37-48-1972-eng.pdf