Evaluation of Tabm Control, 1988

Experimental sprays were applied to 4-tree plots arranged in a randomized complete block design. Each plot contained the following cultivars: ‘Delicious,’ ‘Golden Delicious,’ ‘Stayman,’ and ‘Rome Beauty.’ Each treatment was replicated 4 times. Each plot was surrounded by an adjacent 4-tree plot that...

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Bibliographic Details
Published in:Insecticide and acaricide tests 1989-01, Vol.14 (1), p.18-19
Main Authors: Hull, L. A., Rajotte, E. G., Knight, A. L.
Format: Article
Language:English
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Summary:Experimental sprays were applied to 4-tree plots arranged in a randomized complete block design. Each plot contained the following cultivars: ‘Delicious,’ ‘Golden Delicious,’ ‘Stayman,’ and ‘Rome Beauty.’ Each treatment was replicated 4 times. Each plot was surrounded by an adjacent 4-tree plot that was treated twice during each brood with a combination of Lannate + Pydrin to prevent TABM larvae from dispersing onto the test trees. Trees were planted to a spacing of 12 x 35 ft. Treatments were applied with a truck-mounted John Bean sprayer, 35 gal/min pump, equipped with a handgun to thoroughly wet the trees. Approximately 4.5 gals of spray was applied to each replicate tree (450 gal/acre). During the experiment, general maintenance sprays of the fungicide Dithane M-45 and calcium chloride as well as 2 alternate-row applications of Swat 8 E (for aphid control) were applied to all plots. Effectiveness against TABM was assessed by scoring for injury all drops after 1 Aug and a harvest sample from each cultivar. Apple samples averaged 484/tree, 7,744/treatment. TABM injury was classified according to brood.
ISSN:0276-3656
DOI:10.1093/iat/14.1.18