บทคัดย่องานวิจัย

Control of post harvest tuber rot of potato incited by Rhizoctonia bataticola.

Amadioha, A. C.;

Archives of Phytopathology and Plant Protection Year: 1998 Vol: 31 Issue: 3 Pages: 225-231 Ref: 13 ref.

1998

บทคัดย่อ

Control of post harvest tuber rot of potato incited by Rhizoctonia bataticola.

Six fungicides, captan, copper oxychloride (as Cupravit), benomyl (as Benlate), mancozeb (as Dithane M45), fentin acetate + maneb (as Brestan) and borax, and cold storage, storage in the open laboratory, farm barns and soil pits were evaluated separately for the control of postharvest tuber rot of potato (cvs. Red Pontiac and Irish Cobbler) caused by R. bataticola [Macrophomina phaseolina]. In addition the effects of low temperature in combination with either captan or benomyl were tested on artificially and naturally infected potatoes in the laboratory. Captan, benomyl and copper oxychloride were the most effective in controlling mycelial growth of the pathogen and captan and benomyl gave the most effective control of storage rots of potato tubers. Low temperature (0-10 deg C) and captan and benlate at 250-500 ppm completely inhibited mycelial growth and rot development by M. phaseolina. The results showed that a low temperature-captan or benomyl combination and storage at 15 deg as well as sto

rage in well drained soil pits particularly in open sites proved very effective against potato tuber rot caused by M. phaseolina.