Evaluation of Dip Treatments to Destroy Diaprepes Abbreviatus on Citrus Nursery Trees
Abstract
Of 67 treatments evaluated as root-dip larvacides for citrus nursery trees only 25 produced more than 50% mortality of larvae of Diaprepes abbreviatus L. None were considered sufficiently effective and safe for practical use. Of 21 treatments tested as foliage-dip ovicides on potted citrus trees, 11 demonstrated slight ovicidal action but none were promising for practical use. Because eradication efforts restricted the supply of satisfactory test insects, only limited tests were possible. Vigorous washing and careful inspection of nursery stock have helped contain the infestation which continues to be a threat to Florida citrus in 1973.Downloads
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