Apple, Acaricide Test, 1987 | Zendy

F. R. Hall | Zendy; M. A. Zajac | Zendy

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Apple, Acaricide Test, 1987

Author(s) -

F. R. Hall,

M. A. Zajac

Publication year - 1988

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/13.1.2

Subject(s) - sprayer , acaricide , horticulture , mite , apple tree , biology , replication (statistics) , sampling (signal processing) , cultivar , botany , toxicology , agronomy , engineering , electrical engineering , filter (signal processing) , virology

Test materials were applied as dilute sprays to 23-yr-old apple trees planted 10 by 35 ft apart. A completely randomized design was used, with 4 replicates per treatment. Each replication consisted of 4 apple trees (one of each cultivar). Compounds were applied (to runoff) with an airblast sprayer on either 25 Apr or 19 Jun (as indicated). Mite populations were assessed by sampling 25 leaves, collected at chest height from the periphery of each tree; in the laboratory, mites were brushed from the leaves onto glass plates coated with Tween 20.

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