| Autor: |
Croxall, H. E., Knight, B. C., Dale, W. T., Rosser, W. R. |
| Předmět: |
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| Zdroj: |
Plant Pathology; Sep1964, Vol. 13 Issue 3, p93-100, 8p, 6 Charts |
| Abstrakt: |
This article examines the effectiveness of curative and protective spraying in controlling the spread of scab infection in a small apple orchard near Shrewsbury, England. The orchard, which was grassed down, consisted of approximately 900 12-year-old Laxton's Superb trees with 120 Worcester Pearmains as pollinators. The researchers used four treatments which were replicated in a randomized-block layout. These are the following: captan protective program; organo-mercury curative program; modified captan program; and dodine acetate program. All materials were applied by hand-lances operated from a hydraulic pump and driven by a tractor power take-off. The researchers have concluded that even in an orchard with a high level of inoculum, fruit of a very susceptible variety can be kept almost entirely free from scab by either a regular protective or curative program in which sprays are applied immediately after an infection period. |
| Databáze: |
Complementary Index |
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