INTEGRATED CONTROL MANAGEMENT OF CUCURBITS DOWNY MILDEW DISEASE
MAGDY ABDEL-LATIFEMAM;
Abstract
Results indicated that the causal fungus of downy mildew disease of cucurbits was identified as Pseudoperonospora cubensis (Berk & Curt.) Rostow, according to the criteria of the sporangia! stage. Results showed that there were a positive correlation between the different inoculum potential and the percentage of disease severity. Results indicated that Cucumis was the most susceptible genera and gained the highest disease severity percentage for its varieties reaction, while the genera Luffa recorded resistant reaction to downy mildew. Results demonstrated that the 1st week of July is the most appropriate sowing date. Where recorded
the lowest disease severity followed by 151
July. The planting at the last
week of July was unsuitable due to the highest disease severity. It was clear that under greenhouse and open field conditions, increasing levels of nitrogen fertilizer increased the percentage of disease severity with downy mildew. While increasing doses of both potassium (K) and phosphorus (P) fertilizers decreased the percentage of disease severity. Results showed that using ethephon , cobalt (Co++) as cobalt sulfate and salicylic acid (SA) as chemical inducers for resistant induction against cucumber downy meldew gained effective reaction with different concentrations as foliar application . Results reported that Previcur N was the best fungicide reducing the percentage of downy mildew severity, followed by Sandofan, Mikal and Acropat respectively, Dacober and Diathane M-45 were the least effective in reducing of disease severity. While Ridomil, Sandocure and Cupravite were moderate in their effective against downy mildew. It was obvious that disease forecast and early warning system had bean used for the first time in Egypt and the whole Arabian and African countries using the last generation of remote measuring agriculture weather stations for real time data around the world named (ADCON telemetry model A733) to collect the micro meteorological factors in plant canopy
the lowest disease severity followed by 151
July. The planting at the last
week of July was unsuitable due to the highest disease severity. It was clear that under greenhouse and open field conditions, increasing levels of nitrogen fertilizer increased the percentage of disease severity with downy mildew. While increasing doses of both potassium (K) and phosphorus (P) fertilizers decreased the percentage of disease severity. Results showed that using ethephon , cobalt (Co++) as cobalt sulfate and salicylic acid (SA) as chemical inducers for resistant induction against cucumber downy meldew gained effective reaction with different concentrations as foliar application . Results reported that Previcur N was the best fungicide reducing the percentage of downy mildew severity, followed by Sandofan, Mikal and Acropat respectively, Dacober and Diathane M-45 were the least effective in reducing of disease severity. While Ridomil, Sandocure and Cupravite were moderate in their effective against downy mildew. It was obvious that disease forecast and early warning system had bean used for the first time in Egypt and the whole Arabian and African countries using the last generation of remote measuring agriculture weather stations for real time data around the world named (ADCON telemetry model A733) to collect the micro meteorological factors in plant canopy
Other data
| Title | INTEGRATED CONTROL MANAGEMENT OF CUCURBITS DOWNY MILDEW DISEASE | Other Titles | المكافحة المتكاملة لمرض البياض الزغبى فى القرعيات | Authors | MAGDY ABDEL-LATIFEMAM | Issue Date | 2002 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| مجدى عبد اللطيف امام.pdf | 416.24 kB | Adobe PDF | View/Open |
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