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Disease severity of powdery mildew (causal agentLeveillula taurica (Lév.) Arn.) on pepper (Capsicum annuum), defoliation and fruit sunscald rating were significantly reduced (P=0.05) by foliar applications of sodium or potassium bicarbonate solutions, compared with water or penconazole (Ophir). Preharvest application of bicarbonate solutions significantly(More)
The incidence of powdery mildew, caused bySphaerotheca fuliginea (Schlecht. Fr.) Polacci, in squash plants, was suppressed in the field to 50–60% of that in untreated control plants by weekly sprays with whitewash (Loven or Yalbin) or clay. Loven or Yalbin sprays resulted in significant reductions in disease level, more on the adaxial (59–65%) than on the(More)
In pot experiments, powdery mildew of cucumber, caused bySphaerotheca fuliginea, was reduced by 64-82% by the film-forming polymer Vapor Gard and by up to 55% by Wilt Pruf. In experiments in polyethylene-covered greenhouses, no harmful effect to the crop was caused by these materials. In one experiment significant disease reductions of 19-67% and 60-96%(More)
S OF PAPERS PRESENTED AT u ~ T H E 14TH C O N G R E S S OF ~"~" T H E I S R A E L I P H Y T O P A T H O L O G I C A L S O C I E T Y '~Oi~7.OPATlqOk.O February 15-16, 1993 ARO, The Volcani Center, Bet Dagan, Israel A: MONITORING DISEASES AND IDENTIFICATION OF PATHOGENS Extended Summary The Plant Clinic as a Tool for Monitoring Plant Diseases I.S. Ben-Ze 'ev,(More)