IMPORTANCE OF PESTICIDE REREGISTRATION IN PLANT PROPAGATION
Before a pesticide can be labeled for use on an ornamental species, it must be registered by the Environmental Protection Agency (EPA). Normally, the manufacturer or registrant will develop necessary data to secure a new label. But, since the pesticide market for ornamentals is limited, many possible registrants estimate that potential profits do not justify costs and decide not to become involved in developing low-use labels.
The serious lack of pesticides registered for use on ornamentals was brought to light in several surveys carried out in 1976–1977 by the American Association of Nurserymen. The surveys disclosed that there were very few pesticide labels available for control of diseases, insects, and weeds in commercially grown ornamental crops, including floral and foliage plants grown in the greenhouse and out-of-doors; woody nursery stock, both container and field grown; shade and flowering trees; and turf and interior landscape plantings.
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