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Bacterial Canker
University of California IPM — Pseudomonas syringae survives in or on plant surfaces and is spread by splashing rain. It is favored by high moisture and low temperatures in spring. The disease is worse in low or sandy spots in the orchard. Vigorous trees are less susceptible ...More…
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Bacterial Canker
University of California IPM — In light sandy soils and some heavy soils, successful control has been achieved with preplant fumigation for nematodes. Application of copper during dormancy has not been shown to protect against bacterial canker. Nematodes stress trees, which ...More…
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Bacterial Canker
University of California IPM — UC Management Guidelines for Bacterial Canker on Peach. Problems with bacterial canker can be minimized at planting by carefully selecting the planting site, choosing the least susceptible rootstocks, and following recommended cultural practices ...More…
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Bacterial Canker
University of California IPM — UC Management Guidelines for Bacterial Canker on Nectarine. Problems with bacterial canker can be minimized at planting by carefully selecting the planting site, choosing the least susceptible rootstocks, and following recommended cultural ...More…
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Bacterial Canker
University of California IPM — Symptoms are most obvious in spring, and include limb die back with rough cankers and amber colored gum. There may also be leaf spot and blast of young flowers and shoots. The sour sap phase of bacterial canker may not show gum and cankers, but ...More…
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Bacterial Canker
University of California IPM — Symptoms are most obvious in spring and include limb dieback with rough cankers and amber colored gum and/or total tree collapse. There may also be leaf spots and blast of young flowers, spurs, and shoots. The sour sap phase of bacterial canker ...More…