Diagnosis of Pest Problems
Determining the cause of a plant abnormality requires a thorough examination of both individual seedlings and the nursery in general. The nursery manager should consider location of the beds within the nursery, along with information on cultural practices such as root pruning, fertilization, and pesticide application in the initial phase of the diagnostic process. It is particularly helpful if the manager can examine both affected and non-affected areas because comparing differences between them may lead to solving the problem.
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Publication: Forest Nursery Pests (1989)